With sleep deprivation, the levels of leptin fall and the levels of ghrelin rise.
What is leptin ?
Your body secretes a hormone called leptin that aids in long-term maintenance of your normal weight. Your blood's concentration of leptin and how much body fat you have are intimately correlated. Despite the fact that your body has enough fat reserves, leptin resistance makes you feel hungry and make you eat more.
What is ghrelin ?
Small amounts of ghrelin are also released by the small intestine, pancreas, and brain. Ghrelin is primarily synthesized and released by the stomach.
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Minerals maintain their chemical structure and are not broken down during digestion.
a) true
b) false
Within eukaryotic cells, which organelle is surrounded by a double membrane and carries the coding that determines protein synthesis?
Within eukaryotic cells, Nucleus is surrounded by a double membrane and carries the coding that determines protein synthesis.
Nucleus- In terms of genomics, a nucleus is the organelle inside a cell that is membrane-enclosed and houses the chromosomes. The nuclear membrane has a variety of pores that enable the selective transit of certain molecules (such proteins and nucleic acids) from and to the nucleus.
Genomics- In order to understand the structure and function of these sequences and of the ensuing biological products, genomics is the study of all or a portion of an organism's genetic or epigenetic sequence information.
Protein Synthesis- The primary process by which amino acids are disposed of is protein synthesis.
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Many drugs that reach the developing fetus or embryo can cause death or congenital defects. what are examples of congenital defects? select all that apply.
• Skeletal and limb abnormalities
• Central nervous system alterations
• Heart defects
These are applicable in examples to many drugs that reach the developing fetus or embryo can cause death or congenital defects.
What is meant by congenital defects?A congenital anomaly is a morphological or functional abnormality that appears during intrauterine life.These illnesses, which are also known as birth defects, congenital disorders, or congenital abnormalities, arise during pregnancy and can be detected before or at birth as well as later in life.What kinds of flaws are instances of congenital?Cleft lip and palate are typically discovered during standard prenatal screenings.congenital heart disease, which might include a hole in the heart, a valve issue, or a blood vessel issue. Usually identified in the first few years of life, cerebral palsy.Each of the medications or drug classes listed below has the potential to give birth to abnormalities in an unborn child:ACE inhibitors (angiotensin converting enzyme).antagonist of angiotensin II.alcoholcocaine isotretinoin (an acne medication) (an acne drug)high vitamin A dosages.lithium.To learn more about congenital defects visit:
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The function of microvilli, often seen on the apical membrane of transporting epithelia, is to?
The function of microvilli, often seen on the apical membrane of transporting epithelia, is to increase the cell's surface area.
Microvilli are tiny finger-like projections that are a bunch of cross-linked actin fibers. They are present in almost all types of cells. Usually, microvilli have a diameter within the range of 50-550 nm. The absence of the basal body distinguishes microvilli from cilia and flagella.
The primary function of microvilli is to increase the cell's surface area which results in improved absorption the food and water molecules and secretion. Therefore, microvilli play an essential role in digestion by expanding the absorbing surface about 25 times. Transport proteins are present on the microvillus membrane, which play an essential role in the transporting of amino acids and sodium ions.
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During the isothermal heat rejection process of an ideal carnot cycle, the entropy of the working fluid:______.
The working fluid's entropy drops during the isothermal heat rejection phase of an ideal Carnot cycle.
What is entropy ?
The quantity of energy that cannot be used to perform work is measured by an object's entropy. The number of alternative arrangements that the atoms in a system can have is also measured by entropy. Entropy is a measure of uncertainty or unpredictability in this sense.
What is carnot cycle?
The term "Carnot cycle" refers to an ideal, reversible closed thermodynamic cycle in which the working substance undergoes the four operations of isothermal expansion to a desired point, adiabatic expansion to a desired point, isothermal compression, and adiabatic compression back to its initial state.
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how will different additives affect hydrogen bonds between different water molecules (soap, sugar, oil)? CER question
Soap is a surfactant, or a compound that lowers the surface tension of a liquid. Soap, in particular, decreases the surface tension of water by weakening the hydrogen bonds that make water such a special substance.
The three sugars interacted with water molecules in different ways. Mannose, the least sweet of the sugars, formed longer and weaker hydrogen bonds with water than glucose or fructose. Fructose, the sweetest of the sugars, formed the shortest and strongest hydrogen bonds with water.
Oil molecules, however, are non-polar, and they can't form hydrogen bonds. If you put oil and water in a container, the water molecules will bunch up together and the oil molecules will bunch up together, forming two distinct layers.
What is the bond called between the two different types of atoms of water?Opposites attract, so this lopsided charge difference allows bonds to form between the hydrogen and oxygen atoms of adjacent H2O molecules. Each H2O can bind to a maximum of four neighbors through these so-called hydrogen bonds.
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In which biome would you expect to find each location, given the precipitation and temperature data? use scientific reasoning to explain your answer.
Answer:
A forest or rainforest biome
Explanation:
A biome is a significant geographic area made up of various ecologies that share common qualities. Temperature and precipitation play a major role in determining biomes. Generally, higher latitude biomes—those that are away from the equator—are colder and damper. Since warmer air stores more humidity than that of colder air, biomes that are near the equator are often warmer and drier. What drives the biomes' geographic placement?
A biome's climate is mostly determined by the forms of life that exist there. Latitude, geographic characteristics, and atmospheric mechanisms that disperse heat and humidity are only a few of the variables that affect climate. Scientists disagree on the number of distinct biomes that exist.
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What are the challenges facing the world in terms of epidemics and pandemics?
Answer:COVID MONKEY POX
Explanation:COVID MADE US STAY INSIDE ALL YEAR MONKEY POX GOT PPL SCARED I THINK THESE THE BEST TWO ANSWER.
Unlike simple diffusion, facilitated diffusion requires energy expenditure by the cell. True or false?.
Unlike simple diffusion, Facilitated diffusion requires energy expenditure by the cell is false. It does not require energy expenditure by the cell because it is a passive process.
In facilitated diffusion, molecules move from the region of higher concentration to the region of lower concentration. It is the passive movement of molecules and the membrane allows only selective types of molecules to pass. Only small and non-polar molecules can pass through the membrane.
Some factors that affect facilitated diffusion are temperature, concentration, distance, and size of the molecules.
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When a natural system gets locked into a positive feedback loop, it can reach an ecological tipping point.
true
false
The statement when a natural system gets locked into a positive feedback loop, it can reach an ecological tipping point is TRUE.
What is a positive feedback loop?A positive feedback loop can be defined as any feedback of a system (e.g., biological system) that increases the first outcome triggered by a particular stimulus condition, which can be represented by environmental and/or ecological conditions such as, among others, temperature or light.
In conclusion, the statement when a natural system gets locked into a positive feedback loop, it can reach an ecological tipping point is TRUE.
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In plant cells, the central vacuole may contain _________________________. select all that apply.
n plants cells ,the central vacuole contains salts , minerals , nutrients, proteins, pigments .
What are the functions of vacuole?Vacuoles are membrane-bound organelles that can be found in both animals and plants. In a way, they're specialized lysosomes. That is to say that their function is really to handle waste products, and by handle, mean take in waste products and also get rid of waste products.
Central vacuole stores salts, minerals, nutrients, proteins , pigments ,helps in plant growth and plays an important role for the plant .
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The cells in this part of a plant form long, vertical tubes. What is the most
likely relationship between the structure and function of these specialized
cells?
The correct answer is the tubes allow water and nutrients to be transported throughout the plant.
Transport of water, nutrients, and photosynthates is made easier by the structure of a plant's roots, stems, and leaves. The primary tissues causing this movement are the phloem and xylem. How water and nutrients are carried in plants is influenced by water potential, evapotranspiration, and stomatal control. We must first comprehend the energetics of water potential in order to comprehend how these processes function.
An ordered function is carried out by a group of cells with a similar shape in plant tissues. The dermal, vascular, and ground tissues are the three primary tissue types that make up plant tissues.
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define graph in earth science
Answer:
A graph in earth science is a picture that represents data or specific sets of data in a helpful way.
What disease is a major problem in sub-saharan africa, causing death and leaving many children orphaned?
Among the main causes of disease burden in Sub-Saharan Africa have historically been communicable illnesses including malaria, TB, and HIV.
A transmittable/communicable disease is one that can be transferred from one person to another via a variety of routes, such as contact with blood or body fluids, inhaling an airborne virus, or being bitten by an insect. Sub-Saharan Africa accounted for about 80% of the 3 million HIV/AIDS-related fatalities worldwide by the end of 2002, drastically reducing life span and leaving millions of orphans in its wake. There were seven nations where the prevalence of HIV was higher than 20%.
Making sure our food and water are safe, avoiding ill people, and using safe sex techniques are all significant methods to reduce or stop the spread of communicable disease.
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Muscular exercise presents a dramatic test of the body's homeostatic control systems because it results in large _____.
Muscular exercise presents a dramatic test of the body's homeostatic control systems because it results in large amounts of heat production.
Homeostatic control systems- A body's physiological ability to maintain a steady internal environment in response to changes in the external environment is known as homeostasis.
Heat Production- The term "thermogenesis" refers to the process through which energy is lost by producing heat with specialization.
Energy- In biology, cells frequently store energy in macromolecules, especially lipids and carbohydrates (sugars). When chemical bonds are formed, such as during the redox reactions of cellular aerobic respiration, energy is released.
Redox Reactions- A reaction that happens when an oxidizing material and a reducing substance come into contact.
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The region of the cell located between the nucleus and the plasma membrane is called the _____. this region is composed of the cytosol (fluid) and the organelles.
The region of the cell located between the nucleus and the plasma membrane is called the Cytoplasm. This region is composed of the cytosol (fluid) and the organelles.
The cytoplasm is a type of fluid that fills the inside of a cell. It contains water, salts, and several other organic molecules. Cytoplasm joins the nucleus and the cell membrane.
The cytoplasm is implanted in the cell and the cell's organelles like the endoplasmic reticulum, mitochondria, and ribosomes are attached or suspended with it. It plays a vital role in the chemical reactions that are happening in the cell.
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For men, what is the average portion size of protein dense foods with each meal?
two palm-sized portions
The average portion size of protein dense foods with each meal two palm-sized portions.
Use a serving the size of your palm for foods high in protein, such as meat, fish, eggs, dairy, or legumes. With each meal, we advise guys to eat two palm-sized portions. In addition, we advise women to have one palm-sized quantity with each meal.Why is it crucial to have physical fitness objectives?Your route to wellbeing must include fitness goals. Setting objectives can help you push through the most challenging times to make a change that will stay longer, hold yourself more accountable, and demonstrate to yourself what you are capable of.What foods contain the most protein?proteins in foods
Kangaroo, beef, lamb, veal, and other lean meats.Birds of the bush, include chicken, turkey, duck, emu, and duck.prawns, crab, lobster, mussels, oysters, scallops, clams, and fish are all examples of seafood.eggs.dairy items, such as milk, cheese, and yoghurt (particularly Greek yoghurt) (especially cottage cheese)To learn more about proteins visit:
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When a body has had adequate rest and no food for at least 12 hours, it is said to be in?
When the human body has had adequate rest and no food for 12 hours, it is said to be in the basal state.
What is the basal state?The phrase "basal metabolic rate" (BMR) refers to the overall level of activity of a person's body metabolism as measured by his oxygen consumption in the basal state, which is when the person is completely at rest but not asleep, 14 to 18 hours after eating. The body's oxidative process is more active and the rate of metabolism is higher the more oxygen is used in a certain period of time.
The general metabolic state during treatment has been measured using the BMR. Since thyroid hormones are the main regulators of tissue oxidation and metabolism, BMR measurements were once frequently used to evaluate thyroid function. However, with the development of radioactive-isotope tests and thyroid hormone studies, their use has decreased.
Therefore, the body is said to be in the basal state.
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Drugs that selectively stimulate contraction of the myometrium are known as _______________.
Drugs that selectively stimulate the contraction of the myocardium are known as oxytocic agents.
What is myocardium?The myocardium is the middle layer of the heart. It is the thickest layer between the single-layer endocardium and the outer epicardium. The myocardium is composed of cardiomyocytes.
The function of the myocardium is to facilitate the contraction and relaxation of the heart walls. It helps in the conduction of electrical stimuli.
Cardiac muscles are under to stimulate digoxin, dopamine. Cardiostimulatoy drug stimulate and enhances cardiac function increasing heart rate. Hypertension, Angina, myocardial infraction, and heart failure are some of the disorders related to the heart.
Therefore, Drugs that selectively stimulate the contraction of the myocardium are known as oxytocic agents.
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any help would be very much appreciated!
The pictures are shown for pathogens which are harmful to human body and 1st is virus 2nd is fungus 3rd is protozoa and 4th is bacteria.
Explanation: There are many pathogens that are harmful to people and they are harmful because they use the host machinery to replicate themselves and grow and also damages the host machinery and lyse the cell which in turn reduces the immunity of the host body and also make the host body prone to diseases leading to the early death of host or miserable life.
These pathogens are bacteria, protozoa, fungi, and viruses.
Virus - The viruses are considered as non-living or living depending upon whether they are outside the host cell or inside it as it they are outside they are nonliving and if inside they are living and have genetic material RNA or DNA and a protein coat called capsid.
Bacteria - The bacteria are also unicellular organisms which are prokaryotes and have a cell wall made up of peptidoglycan and can be divided in gram negative and gram-positive bacteria for example Xanthomonas.
Fungi - The fungi are multicellular organisms and have mycelia which is a thread-like structure in the form of a network called hyphae and they produce a different types of spores for their development.
Protozoa - They are microscopic and unicellular organisms and are eukaryotic in nature having complex structure and have complex metabolism and also have cilia for their movements.
So according to this 1st is virus 2nd is fungus 3rd is protozoa and 4th is bacteria.
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Virtually all chemical changes that take place in cells require ________, molecules that greatly increase the rate at which a chemical reaction occurs.
Virtually all chemical changes that take place in cells require enzymes, molecules that greatly increase the rate at which a chemical reaction occurs.
Enzymes are the biological catalysts. these are actually proteinaceous in nature. They are known to increase the rate of a reaction. This is done by lowering the activation energy of that reaction. Almost all the reactions of the body require enzymes.
A chemical reaction is actually a chemical change in the structure of a molecule, called reactant to yield another molecule called the product. These reactions can occur spontaneously or with the help of enzymes.
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Dr. paivio studies the ways in which the endocrine system and the nervous system are similar. which conclusion might he draw?
He might draw the conclusion that,
By releasing chemicals known as hormones and neurotransmitters, respectively, as a form of communication, the endocrine and neurological systems both regulate, coordinate, and integrate many physiological processes and bodily activities. A stimulus activates the neurological and endocrine systems, which then send messages and produce responses.
The endocrine and neurological systems are different:
Endocrine glands secrete hormones that act for a much longer period of time than the neurological system's ability to produce a neural response. Hormone action moves more slowly than neuronal response. A nerve or neural impulse may move through the body almost instantly and in a matter of seconds.
While the neurological system employs electrical impulses to transfer signals across neurons for signaling pathways, the endocrine system uses chemical signals or hormones to accomplish so. The neuronal reactions are transient and reversible, whereas the hormonal impulses are permanent.
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The nurse is teaching a community health class about the immune system. the nurse asks the class to list various functions of b-cells in immunity. which responses by students are correct?
There are various functions of B-cells in immunity:
B cells create a type of protein (antibodies) that is beneficial to the immune system.Antibodies bind to pathogens or to foreign substances, such as toxins, bacteria, and viruses to neutralize and fight them.Prevents pathogens from entering a normal cell and causing infection.B cells can also recruit other cells to help destroy an infected cell.The immune system is a complex network of organs, cells and proteins that defends the body against infection, and protecting the body's own cells. The immune system records every germ (bacteria, viruses, and fungi, and toxins) that is ever defeated, in order to recognize and destroy them if they come back.The are two cells that are involved in these works, those are The T and B lymphocytes (T and B Cells).Learn more about the Immune System here https://brainly.com/question/6612564
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When I give the exact address of someone, I am giving the ____________________?
a-absolute distance
b-relative location
c-relative distance
d-absolute location
The fact that the base of the basilar membrane responds best to high frequencies supports the ________ theory of hearing.
The fact that the base of the basilar membrane responds best to high frequencies supports the Place theory of hearing.
The place theory of hearing states that the different parts of the basilar membrane respond to sounds of different frequencies.
As mentioned, the base part of the basilar membrane responds best to high frequencies but the tip of the basilar membrane won't respond in the same way. the tip of the basilar membrane will respond best to sounds of low frequency.
It also states that the pitch of a sound is determined by the place of vibration of the membrane.
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Which term is used to describe an objectively identifiable aberration of the disease?
a. syndrome
b. symptom
c. sign
d. stage
Option (c) sign is the correct answer.
The term used to describe an objectively identifiable aberration of the disease is sign.
What does a sickness sign entail?Any objective proof of a sickness, as opposed to a symptom, which is always a subjective indication. For instance, obvious blood in the stool is an indication of sickness that can be identified by the patient, doctor, nurse, or another person.What are the many types of aberration?An aberration is a flaw in how a lens concentrates the light it gathers. Because the light rays travelling through a lens don't converge at a single spot, aberrations happen. Aberrations come in a variety of forms, and they can impact an image's sharpness, focus, magnification, distortion, and color.To learn more about aberration visit:
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Pasteur demonstrated that yeasts and bacteria each produce specific metabolic products such as alcohols and organic acids by a process known as?
Pasteur demonstrated that yeasts and bacteria both engage in the fermentation process, which results in the production of particular metabolic products such alcohols and organic acids.
Describe fermentation:Through the activity of enzymes, fermentation is a metabolic process that results in chemical changes in organic substrates. Biochemistry specifically refers to the process of producing energy from sugars without the oxygen being present.
What is fermentation's primary purpose?All living cells contain the molecule NADH, which fermentation mostly does by converting it back into the coenzyme NAD+ so that it can be used once more. Glycolysis is the process by which glucose is dissolved in the presence of enzymes to release energy.
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Dna polymerases are responsible for:________
a. unwinding the helix.
b. binding the nicks in dna.
c. proofreading/repair.
d. building the dna chain.
e. supercoiling of dna.
DNA polymerases are responsible for building the DNA chain.
DNA Polymerases- All living things have a particular type of enzymes called DNA polymerase. DNA replication and DNA repair and upkeep are two of its primary functions. The enzyme is essential for the generational transfer of genetic information.
Enzyme- Proteins called enzymes aid in accelerating our bodies' chemical processes, or metabolism. Some compounds are created, while others are broken down.
DNA- Deoxyribonucleic acid, also known as DNA, is the molecule that carries the genetic material necessary for an organism's growth and operation. The structure of DNA is a double helix, which is made up of two connected strands that loop around one another to resemble a twisted ladder.
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Which diagnostic tests aid in the diagnosis of cystic fibrosis?
Diagnostic tests aid in the diagnosis of cystic fibrosis is a
genetic test that looks for chromosomal abnormalities linked to cystic fibrosis (CF) is frequently performed in addition to a sweat test, which analyzes the quantity of chloride in sweat.
What is a sweat test?An example of a sweat test. The sweat test measures the amount of chloride, a component of perspiration related to salts. There are no needles used in this test. A colorless, odorless chemical (pilocarpine) and a little quantity of electrical stimulation are administered in the first step of the test to activate the sweat glands in a small region of the arm or leg to produce perspiration.
There may be some warmth or tingling there. This part of the exam takes around five minutes. The perspiration is then collected on a piece of gauze, filter paper, or a plastic coil. This process takes 30 minutes. In a medical lab, the quantity of chloride in the collected perspiration is measured.
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What are the two MAJOR types
PROKARYOTIC cells?
of
A. plant and animal
B. plants and animals
C. archaea and bacteria
Answer:
C. Bacteria and archaea
Explanation:
Bacteria and archaea are the two types of prokaryotes.
