what is the source of protons that are pumped out of the mitochondrial matrix in stage 1 of oxidative phosphorylation?

Answers

Answer 1

NADH and FADH2 are the source of protons that are ejected from the complex 1,3,4 which goes to the complex 5 where all the protons get converted to ATP.

oxidative phosphorylation is made up of two known as the electron transport chain and chemiosmosis

Electrons received at complex 1 transfer to a carrier which carries to all different complex known as ubiquinone or Q

This takes place in mitochondria.

Transfer of protons take place from the mitochondrial matrix to the intermembrane space at the three sites of ATP production, which is at complex V.

The NADH and FADH2 is generally from glycolysis and kreb cycle.

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Related Questions

in an experiment, you have a tall plant that produces round peas. tall and round are dominant and the plant is heterozygous for both traits. the plant is then self-fertilized. what is the probability that a single offspring plant is tall and has wrinkled peas? express your answer as a decimal.

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A plant in which tall and round are dominant and the plant is heterozygous for both traits, The probability that a single offspring plantis tall and has wrinkled peas is 0.1875.

The parental plant's genotype is TtRr since all od them possess heterozygous traits. The answer to this question can be determined in several ways. use a Punnett square or a ramification, but the result is the same. This crossed Punnett Square shows that 3/16 is likely large and wrinkled. Punnett squares are useful, but can be unwieldy for large numbers of features, so it's worth looking at ways to explore this using probabilities. Each allele has a half (0.5) chance of being passed on to the next generation. Using the product rule, we can calculate the probability of the large wrinkled phenotype. The genotypes that give the tall and wrinkled phenotype are:

TTrr, Ttrr, tTrr Probability of T and T and r and r = 0.5 x 0.5 x 0.5 x 0.5 (equivalent to 0.54) = 0.0625 (or 1/16) Ttrr is also 0.54 and tTrr is 0.54. The probability of any of these possibilities occurring uses the summation rule. H. Probability of TTrr or Ttrr or tTrr = 0.0625 + 0.0625 + 0.0625 = 0.1875.

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the outer portion of the pericardium is a tough, dense connective tissue layer called the ______ pericardium.

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The outer portion of the pericardium is a tough, dense connective tissue layer called the fibrous pericardium.

The pericardium is a double-layered sac that surrounds and protects the heart. The outer layer of the pericardium is the fibrous pericardium, which is a tough, fibrous layer of connective tissue. It is composed of dense, irregular connective tissue and serves as the outermost layer of the pericardial sac. The fibrous pericardium is attached to the central tendon of the diaphragm inferiorly and to the sternum anteriorly. It also blends with the adventitia of the great vessels entering and leaving the heart. The fibrous pericardium helps to anchor the heart in place and prevents it from overfilling with blood. Unlike the inner layer of the pericardium, the fibrous pericardium is not flexible and does not stretch. It has limited elasticity and serves as a protective barrier against external trauma and infection. In cases of inflammation or disease, the fibrous pericardium may become thickened or adhered to the heart, leading to a condition called constrictive pericarditis, which can impair heart function.

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for cells without the hyperactive adenylate kinase mutation, how would you expect the ec to change? choose one: a. the ec would decrease. b. there is no way to predict how the ec would change. c. the ec would remain unchanged. d. the ec would increase.

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For cells without the hyperactive adenylate kinase mutation, expect the EC to change Option D) EC would increase.

The EC would increase. for the normal cell, [ADP] would decrease and [ATP] would increase. From the definition of EC this would lead to a ratio closer to one, greater than EC of mutant

Protein function is a balancing act between activity and stability. However, it has been challenging to evaluate the significance of stability-activity trade-offs for protein evolution and their impact on organismal fitness. Previously, we connected organismal survival at increasing temperatures to adaptive modifications to a single protein sequence in a thermophile via allelic substitution of an important gene, adenylate kinase (adk). The in vivo continuous evolution of the temperature-sensitive thermophile has revealed that the initial step towards higher organismal fitness is the mutation of glutamine-199 to arginine in the mesophilic enzyme.

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a farmer in a developing nation will try to plant the maximum amount of crops on his land. this farmer would most likely use which method of tree-cutting.

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A farmer in a developing nation who wants to put the maximum amount of crops on his land is most likely to use clear-cutting as a method of tree cutting. Option B is correct.

Clear-cutting is a method of logging or tree cutting in which all the trees in a selected area are cut down. This method is commonly used to remove all the trees in a given area quickly, which would enable the farmer to clear the land and maximize crop production.

However, clear-cutting can lead to environmental problems, such as soil erosion and loss of biodiversity, and therefore it should be used with caution and appropriate measures taken to prevent these issues.

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--The given question is incomplete, the complete question is

"A farmer in a developing nation will try to put the maximum amount of crops on his land. This farmer would most likely use which method of tree cutting? A) Selective cutting B) Clear-cutting C) Strip cutting D) Seed-tree cutting E) Shelter wood cutting"--

Provide two unique facts about each of the planets in the Solar System.

Answers

Answer:

Mercury:

a. It is the smallest planet in the Solar System.

b. It rotates very slowly, taking about 59 Earth days to complete one rotation on its axis.

Venus:

a. It is the hottest planet in the Solar System, with surface temperatures reaching up to 864°F.

b. It is the brightest object in the night sky after the Moon, due to the reflection of sunlight by its thick atmosphere.

Earth:

a. It is the only known planet to support life as we know it.

b. It is the only planet in the Solar System with a moon of roughly equal size relative to its own size.

Mars:

a. It has the largest volcano in the Solar System, Olympus Mons, and the deepest canyon, Valles Marineris.

b. It has a thin atmosphere and experiences significant temperature swings, with temperatures dropping as low as -140°F at the poles.

Jupiter:

a. It is the largest planet in the Solar System, more massive than all the other planets combined.

b. It has a massive and complex system of 79 moons, the largest of which is Ganymede.

Saturn:

a. It is famous for its stunning and complex system of rings, composed of millions of ice and rock particles.

b. It has the lowest density of any planet, with a density less than water, meaning it would float in a large enough ocean.

Uranus:

a. It is the only planet in the Solar System that rotates on its side, with its axis tilted at an angle of 97.77°.

b. It has a unique and complex system of 27 moons, including Miranda, which has one of the most varied and strange surface features in the Solar System.

Neptune:

a. It is the farthest planet from the Sun and the smallest of the gas giants.

b. It has the fastest winds of any planet in the Solar System, with winds reaching speeds of up to 1,600 km/h.

Explanation:

ALLLEN

the structure of the spleen and lymph nodes are composed mainly of

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The structure of the spleen and lymph nodes are composed mainly of Reticular loose connective

The spleen is the body's biggest lymphatic organ. The spleen is made up of two types of tissue: white pulp and red pulp. It is surrounded by a connective tissue capsule that continues inside to split the organ into lobules. The white pulp is lymphatic tissue made up primarily of lymphocytes that surround arteries.

Lymph nodes are made up of lymph tissue and other types of cells, such as white blood cells (lymphocytes). Lymph nodes and other lymphatic organs such as the spleen and thymus contain lymphocytes, which are unique white blood cells. These may rapidly proliferate and produce antibodies in response to bacteria, viruses, and a variety of other stimuli emitted by dead or dying cells, as well as improperly behaving cells such as cancer cells.

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Full Question

The structure of the spleen and lymph nodes are composed mainly of ______-

Why should the swab first be moistened in sterile saline before sampling an area and transferring to an agar plate?

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The swab should first be moistened in sterile saline before sampling an area and transferring it to an agar plate because it helps to collect a sufficient amount of bacteria from the area being sampled.

Besides that, moistening the swab in sterile saline is important to help to prevent the sample from drying out, thus ensuring an optimal environment for the growth of any potential microorganisms. By moistening the swab, it also becomes more effective at picking up and retaining bacteria. This is important because, without enough bacteria on the swab, the sample may not be representative of the true bacterial population in the area being sampled. Additionally, the use of sterile saline helps to prevent any contamination of the sample, which could potentially affect the results of the culture.

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Is the disaccharide made from a glucose linked to a fructose ?

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Yes, a disaccharide made from a glucose linked to a fructose is called sucrose. Sucrose is a common table sugar that is found naturally in many fruits and vegetables.

It is a non-reducing disaccharide, meaning it does not react with certain chemical reagents that typically react with reducing sugars. The chemical bond between glucose and fructose in sucrose is called a glycosidic bond, and it is formed through a dehydration reaction that links the anomeric carbon of glucose to the hydroxyl group of fructose. When sucrose is broken down, it is hydrolyzed by the enzyme sucrase, which cleaves the glycosidic bond and produces glucose and fructose. Sucrose is a disaccharide, which means that it is made up of two monosaccharide units - glucose and fructose. Glucose and fructose are both simple sugars that belong to the group of carbohydrates. Glucose is a six-carbon sugar, and it is the primary source of energy for many living organisms. Fructose is also a six-carbon sugar, but it has a slightly different chemical structure than glucose, which gives it different physical and chemical properties. Sucrose is formed by a condensation reaction between glucose and fructose, in which a molecule of water is eliminated, and a glycosidic bond is formed between the anomeric carbon of glucose and the hydroxyl group of fructose.

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HELP ME PLEASEEE!!! I WILL GIVE BRAINLIEST!!! PLEASE!!! i have a test!!!!

Answers

Respiration processes:

OxygenAnaerobicSprinters, wrestlers, footballers, weightliftersFast twitch muscle

Scenario: weightlifter

Anaerobic - the respiration process occurs without the use of oxygen.Fast twitchlimited amount of ATPLactic acid and energy

What is Anaerobic respiration?

Anaerobic respiration occurs when there is insufficient oxygen available for aerobic respiration to continue. In this process, the body is forced to produce lactic acid from pyruvic acid, as the pyruvic acid cannot be fully broken down in the presence of limited oxygen.

The missing factor is oxygen. During anaerobic respiration, the body relies on glycolysis, a process that converts glucose into energy without the use of oxygen, to produce ATP.

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which feature of cycads distinguishes them from most other gymnosperms?

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They have exposed ovules. Gymnosperms are thought to have been the first vascular plants to emerge on the planet.

What is Gymnosperms?

Conifers, cycads, ginkgos, and gnetophytes are some of the Embyophyta species that they belong to. The male and female gametophytes are enclosed in cones in gymnosperms.

When the female cone's ovule is fertilized by the pollen-containing male cone, seeds are produced. The seed is formed from the embryonic stage of the ovule and is then exposed on bracts, which are leaf-like structures. The seed is not enclosed in an ovary, unlike in angiosperms.

One of the most advantageous advances of vascular plants was the evolution of the seed. In addition to assisting in safe spreading and giving contained embryos protection and nutrition, seeds give seed plants a competitive edge over competing flora.

Therefore, They have exposed ovules. Gymnosperms are thought to have been the first vascular plants to emerge on the planet.

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Which pattern of evolution results in one species splitting into many over time?answer choicesA. coevolutionB. divergent evolutionC. convergent evolutionD. sexual selection

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Option B, Divergent evolution is a pattern of evolution in which a single ancestral species splits into two or more distinct species over time.

This can occur as a result of geographical isolation, which prevents gene flow between populations, or due to differences in selective pressures that result in different adaptations in different populations. Over time, these adaptations become more and more pronounced, leading to the divergence of the ancestral species into distinct, new species. This process is often referred to as speciation. In contrast, convergent evolution is when two or more species independently evolve similar adaptations in response to similar environmental pressures, leading to a similar appearance or structure, even though they are not closely related. Coevolution is the mutual evolutionary influence between two species, and sexual selection is a type of natural selection that focuses on the evolution of traits that are important for mating success.

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The complete Question is:

Which pattern of evolution results in one species splitting into many over time?answer choices

A. coevolution

B. divergent evolution

C. convergent evolution

D. sexual selection

What condition is a mushroom like growth from the surface of a mucous membrane?

Answers

Pendunculated polyps are tissue growths that resemble mushrooms and are attached to the mucous membrane of the colon by a long, thin stalk.

Polyps are microscopic, scaly, or mushroom-shaped growths that develop inside the mucosa or right next to it. Inflammatory polyps, lymphoid polyps, and fibroepithelial polyps are only a few of the various varieties. The sore is known as a deep tissue injury when it's not an open wound present but the tissues underneath have been harmed (DTI). There might be a blood-filled blister or a region of skin that appears dark red or purple. Vesicles with a diameter more than 0.5 cm are called bullae. Bullae's thin walls make them prone to rupture. Bullae are large blisters that develop from second-degree burns. the soft inner lining that lines several bodily cavities and organs.

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if a gene is found only on the x chromosome and not the y chromosome, it is said to be X-linked genes

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One who possesses an X-linked gene has an X chromosome but not a Y chromosome. Non-X-linked genes inherit differently from X-linked genes (autosomes). This is due to the fact that the number of copies of these genes differs between males and females.

Chromosomes are typically found in the plasma membranes of bacteria. By centrifuging lysed bacteria and pelleting the membranes, this enables the separation of it from plasmid DNA in molecular biology applications (and the attached DNA). Like eukaryotic DNA, prokaryotic chromosomes and plasmids typically have supercoiled ends. Transcription, regulation, and replication require an accessible and relaxed DNA environment.

The complete question is:

If a gene is found only on the x chromosome and not the y chromosome, it is said to be X-linked genes. True or False?

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has passageways that carry proteins and other materials from one part of the cell to another - I'm a transportER. (rough E.R. has ribosomes attached to it, while smooth E.R. doesn't. E.R. is found in BOTH PLANT + ANIMAL CELLS because...)

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The Endoplasmic Reticulum (ER) is an interconnected network of membranes present in both plant and animal cells.

Proteins and other materials are transported by it from one area of the cell to another. Rough Endoplasmic Reticulum (RER) and Smooth Endoplasmic Reticulum are two different forms (SER). The presence of ribosomes on the RER's outer surface makes it distinctive.

The synthesis of proteins that are thereafter transported via the ER is carried out by these ribosomes.

The SER, on the other hand, is involved in the synthesis of lipids and carbohydrates as well as the modification and packaging of proteins even though it lacks ribosomes.

As it offers a route for the movement of proteins and other materials throughout the cell, the ER is crucial for the health and function of both plant and animal cells.

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what carries the genetic code used to make proteins?

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The messenger RNA or mRNA carries the genetic code used to make proteins.

In general , the messenger RNA (mRNA), are the molecule present in the cells that carries information or codes from the DNA inside the nucleus to help in protein synthesis in the cytoplasm .Hence , mRNA  carries the information or codes from  DNA out of the nucleus into the cytoplasm.

Also an enzyme known as RNA polymerase are uses for DNA as a template to generate a pre-mRNA transcript. These pre-mRNA gets developed to form a mature mRNA molecule which can translate into the protein molecule that are encoded by the parent gene.

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Which phrase describes the process of succession?

A. One disturbance replacing another disturbance
B. An ecosystem changing from one biome to another biome
C. One community gradually replacing another community
D. A species changing from one niche to another niche​

Answers

The expression that describes succession is C. One community gradually replacing another community.

What is succession?

Succession is the process of changing a community in an ecosystem to become another community of a different type. These changes generally occur over a long period of time.

Succession occurs due to several factors, one of which is natural disasters that damage ecosystems such as forest fires. After a mass extinction occurs in an ecosystem, a new ecosystem will slowly form which has a different species structure from the previous one.

The succession process can take quite a long time for tens of years to hundreds of years in one go. Succession is divided into two types, namely primary succession and secondary succession.

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Which of the choices is not needed for DNA replication?-None of the answer options is correct.-nucleotides-enzymes-ribosomes-DNA

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The remedy is ribosomes. Proteins and the ribosomal RNA found in ribosomes, which are microscopic organelles (rRNA).

All cells that are alive today synthesize proteins thanks to them. The large and small subunits of ribosomes, which are present in the cytoplasm of cells, are the two primary subunits of ribosomes. Proteins are built by the two subunits, which fit together like pieces of a puzzle. Messenger RNA (mRNA), which contains instructions, is read by ribosomes, which subsequently join the amino acids that make up proteins. Considering that all biological activities require proteins, they are vital to life. The cellular building blocks of proteins are called ribosomes. They consist of two separate parts that come together to form a protein assembly line.

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What do a baboon, a palm tree, a bacteria, and a primitive mammoth (and all living things for that matter) all have in common?

Answers

All of these living things share the common trait of being made up of cells. Cells are the basic unit of life, and they are necessary for any organism to survive and function.

What is organism?

Organism is a living thing that has the capacity for growth, reproduction, metabolism, and homeostasis. Organisms can be single-celled or multicellular and can be found in virtually any environment on Earth. Examples of organisms include plants, animals, fungi, and bacteria. All organisms are composed of one or more cells, which are the basic unit of life. Cells are surrounded by a membrane, which can be composed of a variety of molecules, and contain genetic material, which is responsible for the organism's characteristics and behavior.

All of these living things also require energy, nutrients, and water to live and reproduce. Additionally, they are all subject to the same laws of evolution and natural selection.

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The visceral layer of the serous pericardium is also called the ______.

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The myocardial of the heart is protected by the visceral serous pericardium, also referred to as the epicardium, which can be regarded as its serosa.

A mesothelium covering some loose connective tissue rich in elastin makes up the majority of its structure.

The wave of depolarization travels from the endocardial to the epicardial surface during ventricular contraction. Both of these layers work to lubricate the heart during activity to reduce friction.

The parietal serous pericardium connects with the visceral serous pericardium at the anatomical base of the heart and extends to the root of the major arteries. The ventricular outflow tracts, where the aorta and pulmonary trunk exit the heart, and the ventricular inflow tracts, where the superior/inferior vena cava and pulmonary veins enter the heart, are where this juncture occurs.

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Calculate after 8 hours, by what percentage was the lactic acid higher in the virus group than in the control group? By what percentage was ATP production decreased? (4 points)

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Your body creates lactic acid when your cells digest carbs for energy. You may hear people refer to it as lactate. The most lactic acid is produced by muscle and red blood cells, but it can also come from any other tissue in your body.

What is Lactic acid?

After a challenging workout, most individuals imagine having lactic acid in their muscles.

When you exercise, your muscles certainly produce a lot of lactic acid, but that's not the only activity that can do it. Your cells may produce lactic acid as a result of anything that causes your body to utilize more oxygen than usual.

Exercise, yard work, and carrying heavy boxes while assisting a friend move can all temporarily raise your body's lactic acid levels.

Therefore, Your body creates lactic acid when your cells digest carbs for energy. You may hear people refer to it as lactate. The most lactic acid is produced by muscle and red blood cells, but it can also come from any other tissue in your body.

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The body produces lactic acid when the cells digest carbs for energy which is known as lactate. The most lactic acid is produced by muscle and red blood cells, but it can also come from any other tissue in your body.

What is Lactic acid?

While exercise,the muscles certainly produce a lot of lactic acid, but that's not the only activity that can do it. The cells may produce lactic acid as a result of anything that causes your body to utilize more oxygen than usual.

After a challenging workout, most individuals imagine having lactic acid in their muscles.

Therefore, The body produces lactic acid when the cells digest carbs for energy which is known as lactate.

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What is the visceral serous pericardium called?

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The innermost layer in your pericardium is called the visceral level of the serous pericardium. Your heart and the bases of your major veins are directly covered. The epicardium is the term for the area that surrounds your heart.

The myocardial of the heart is protected by the visceral serous pericardium, often referred to as the epicardium, which can be regarded as its serosa. The exterior surface of the heart itself is lined with the inner (visceral) layer of a serous pericardium. The pericardial cavity, which houses pericardial fluid, is located between the two layers of a serous pericardium. This fluid permits the heart can expand and contract by acting as a lubricant between the two layers. The heart and the large veins are covered by the visceral layer, or epicardium.

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the reason that metabolizing cells are small in size is because

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The reason that metabolizing cells are small in size is because the surface area of a cell must be able to accomplish nutrient/waste exchange.

Because cells are so small, they may maximise their surface area to volume ratio.

Smaller cells have a higher ratio, allowing more molecules and ions to pass through the cell membrane per unit of cytoplasmic volume.

Cells are so tiny because they need to be able to get nutrients in and waste out as rapidly as possible.

Their unique surface area in relation to the volume of cytoplasm enables them to control the exchange of certain molecules within the system.

As a result, metabolising cells are modest in size because the surface area of a cell must be capable of nutrient/waste exchange.

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Complete Question is:

The reason that metabolizing cells are small in size is because...

- cells influence nearby cells to divide.

- the surface area of a cell must be able to accomplish nutrient/waste exchange.

- cells need to dissipate heat effectively.

- mitosis occurs before cells reach a certain size.

- cells need to communicate with adjacent cells.

The idealized conditions necessary for a population to achieve rmax include:_________

Answers

The prerequisites for rmax are food and water, the lack of predators or adequate predator management, as well as suitable meteorological and climatic circumstances.

What is rmax?

The highest rate of population expansion a species can experience under ideal environmental conditions is known as Rmax, also known as the intrinsic rate of natural increase. It is estimated as the difference between the birth rate and the mortality rate and serves as a gauge of a population's capacity for reproduction. When the population is expanding at its fastest pace, rmax is the value of r in the exponential growth model (dN/dt = rN). The value of rmax differs between species and is determined by things like longevity, environmental conditions, reproductive rate, and age at first reproduction. Understanding rmax is crucial for forecasting population growth and behaviour, determining the likelihood of population decreases or extinctions, and creating successful conservation plans.

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Select the products of the preparatory reaction and the Krebs cycle after two turns. Select all that apply.

Multiple select question.

A) 2 FADH2
B) 3 CO2
C) 8 NADH
D) 1 ATP
E) 1 FADH2
F) 2 ATP
G) 4 NADH
H) 6 CO2

Answers

The products of the preparatory reaction are 2 NADH and 2 acetyl CoA. The products of the Krebs cycle after two turns are 6 NADH, 2 FADH2, 4 CO2, and 2 ATP. So, the total products after two turns are 12 NADH, 4 FADH2, 6 CO2, and 4 ATP.

What is Krebs cycle?

The Krebs cycle, also known as the citric acid cycle, is a series of chemical reactions that take place in the mitochondria of cells. It is the second of three main stages in cellular respiration and generates molecules that carry energy to the electron transport chain. The cycle produces ATP, NADH, FADH2, and CO2 as byproducts.

The products of the preparatory reaction are 2 NADH and 2 acetyl CoA. The products of the Krebs cycle after two turns are 6 NADH, 2 FADH2, 4 CO2, and 2 ATP. So, the total products after two turns are 12 NADH, 4 FADH2, 6 CO2, and 4 ATP.

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Which tissues has cells residing in lacunae?

Answers

Hyaline Cartilage tissues have cells that live in lacunae, which corresponds to the query.

What materials make up lacunae?

Cells ,The chondrocytes in developing cartilage can split, and the offspring cells stick together in clusters to create a "nest" of 2-4 cells. They sit in spaces known as lacunae, which are matrix-enclosed chambers. Lacunae are little lakes or pits.

Osteoblasts are there in lacunae?

The osteoid is directly above where the osteoblasts are positioned (newly formed bone matrix). Lacunae are home to osteoblasts. The lacunae known as Howship's lacunae are occasionally observed to contain enormous pleomorphic osteocytes, which break down bone. These are easily located in the growth plate's ossification zone.

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Aaron's mother has multiple sclerosis. One of the features of the disease is the slowing down of nerve impulses. What part of the neuron could be affected by MS?

Answers

Multiple Sclerosis (MS) is an autoimmune disorder that affects the central nervous system (CNS). In MS, the myelin sheath, which is the protective covering surrounding the nerve cells, is destroyed.

This disrupts the ability of nerve cells to communicate with each other, resulting in the disruption of nerve impulses. The areas of the neuron that are especially affected are the myelin sheath, the axons, and the dendrites. The myelin sheath is the most affected, as it is the most vulnerable to attack by the immune system. The axons, which transmit electrical signals, are also damaged, resulting in decreased nerve impulse conduction. Finally, the dendrites, which receive signals from other neurons, may also be affected, leading to decreased communication with other neurons. Thus, MS can affect all parts of the neuron, resulting in the slowing down of nerve impulses.

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Which of the following are features of lymphatic vessels? Select all that apply.
A tunica interna is present
Smooth muscle is present in the vessel wall
They resist moderate to high pressure
They have thick walls
Valves are present

Answers

The features of lymphatic vessels include a tunica interna is present, smooth muscle is present in the vessel, and valves are present. Lymphatic vessels are a part of the lymphatic system, which is a network of vessels and organs that is responsible for the circulation of lymph.

Lymphatic vessels are thin-walled vessels that collect excess fluid and waste products from the tissues and return them to the bloodstream. The structure of lymphatic vessels is similar to that of veins, with a tunica interna (inner layer), tunica media (middle layer), and tunica adventitia (outer layer). However, lymphatic vessels have thinner walls than veins and do not have as much smooth muscle in the vessel wall. Lymphatic vessels also have valves, which prevent the backflow of lymph and help to direct its flow towards the lymph nodes. Lymphatic vessels are low-pressure vessels, with pressures ranging from 1-5 mmHg. They are not able to resist moderate to high pressure and do not have as thick walls as arteries. This is because the lymphatic system relies on the contraction of surrounding muscles and the movement of body tissues to help move lymph along the vessels.

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what causes my heart is beating fast and i have shortness of breath

Answers

Answer:

you can be anemic, or have drank coffee, worse case scenario you could have underlying disease, be obese, have diabetes, you may have taken some strong medicines such as vitamins (vitamin D, Iron) you may have covid (but shortness of breath and rapid heart beat is only one symptom of covid) you could be anxious and have anxiety or any other mental health disorder, you may have acid reflux (when you sleep or lay down you have a gassy stomach or you cannot breathe well)

Explanation:

if you do have heart palpitations and shortness of breath, take a slow walk, drink green or herbal tea (non caffeinated) , sleep with your head elevated,  get some fresh air, if condition persists and feeling pain in heart (on left side of your chest) go to hospital.

The biological species concept is inadequate for grouping. A) plants. B) parasites. C) asexual organisms. D) animals that migrate. E) sympatric populations.

Answers

The biological species concept is considered to be inadequate for grouping in certain cases, such as:  plants, parasites, asexual organisms., animals that migrate and sympatric populations.

Options A, B , C , D and E are all correct

What are biological species?

A biological species is described as a group of organisms that can reproduce with one another in nature and produce fertile offspring.

The biological species concept is inadequate for grouping in plants because the concept does not fully account for the diversity of reproduction mechanisms in plants which includes asexual reproduction and hybridization.

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where do cells differentiate in the small intestine ?

Answers

Cells differentiate in the crypts of Lieberkühn in the small intestine.

The crypts of Lieberkühn are tubular glands that are located between the bases of the villi of the small intestine. They are responsible for producing new cells that replace the old ones on the surface of the villi. The new cells differentiate into different types of cells, such as enterocytes, goblet cells, and enteroendocrine cells, which all have specific functions in the small intestine.

The differentiation of these new cells is important for the proper functioning of the small intestine, including the absorption of nutrients and the secretion of mucus and hormones.

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