Classify the characteristics as being unique to prokaryotic cells, common to both cell types, or unique to eukaryotic cells.
The number one difference among those sorts of organisms is that eukaryotic cells have a membrane-certain nucleus and prokaryotic cells do not. The nucleus is wherein eukaryotes save their genetic information.
Prokaryotic cells lack a nucleus surrounded with the aid of using a complicated nuclear membrane and typically have a single, round chromosome positioned in a nucleoid.
Eukaryotic cells have a nucleus surrounded with the aid of using a complicated nuclear membrane that includes multiple, rod-fashioned chromosomes.DNA is loosely contained with inside the nucleoid region, eukaryotic cells own a nucleus, that's surrounded through a complicated nuclear membrane that homes the DNA genome.
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A mutation occurred in the gene that encodes the enzyme sucrase, resulting in a single amino acid substitution in the active site of the enzyme. A polar amino acid was changed to a nonpolar amino acid. What is a likely result of this mutation?.
Answer:
Sucrase will not be able to bind in the active site
A single amino acid substitution—from a polar to the nonpolar amino acid—occurred in the active region of the enzyme as just a result of a mutation within the gene which codes for the enzyme sucrase. Mostly what likely resulted from this mutation. An active site would not allow sucrase to bind.
The connection between the two sugars which comprise sucrose is disrupted when sucrose attaches towards the sucrase active site. The Fructose as well as glucose are released when the connection breaks.
The human body contains sucrase, but where exactly can you find it there?
A partly integrated integral protein called sucrose isomaltase (SI) is found within the small intestine's brush border.
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What inheritance type has alleles that both fully express
what would happen if we removeda link in the food chain?
The cftr receptor moves chloride ions out of a cell by active transport. this is an example of?
This is an example of a reaction requiring the input of energy (ATP). CFTR belongs to a vast superfamily of ATP binding cassette transporters that have two nucleotide binding domains with unique sequences or "motifs." Unlike most other ATP binding cassette transporters, CFTR uses ATP to actively transport diverse substrates.
When food molecules are broken down, ATP Adenosine creates chemical energy and uses it to fuel other cellular processes. In the mitochondria of a cell, the process of cellular respiration also results in the production of ATP. Anaerobic respiration, which doesn't require oxygen, or aerobic respiration, which does, are both options for doing CFTR.
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Maternal _____ is associated with increased risk of placenta previa, placental abruption, premature rupture of the membrane, preterm delivery, and restricted fetal growth.
Maternal hypertension is associated with an increased risk of placenta previa, placental abruption, premature rupture of the membrane, preterm delivery, and restricted fetal growth.
Placental abruption refers to a partial or complete separation of the placenta from the uterine wall. The mother may bleed as a result, and the baby's oxygen and nutritional needs may be hampered.
In the majority of cases, there is no known cause, however, risk factors can include substance abuse, abdominal trauma, and high blood pressure in the mother.
Without urgent medical treatment, a severe episode of placental abruption can have catastrophic repercussions for the woman and her unborn child, including death. Placental abruption is the term used to describe the placenta's partial or complete separation from the uterine wall. Mothers may bleed as a result of this. It might also affect the placenta's ability to transfer nutrients and oxygen from the mother's bloodstream to the developing baby through the uterus lining.
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Which function of epithelial tissues is best suited to detecting changes in the environment?
Sensation function of epithelial tissues is best suited to detecting changes in the environment.
Describe the environment:The items, situations, or surroundings that one is in. the mixture of physical (temperature, soil, etc.) and biotic (life things) factors that influence an organism or ecological community and it ultimately determine its form and survival.
What three types of environments are there?The environment can also be divided into three categories based on its constituents
(1) The aquatic environment (marine, such as oceans and seas, and freshwaters, such as lakes and rivers),
(2) The terrestrial environment (land), and
(3) The atmospheric environment (air).
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Where is smooth muscle typically found? select one:
a. stomach.
b. intestine.
c. kidney.
d. kidney and liver.
e. stomach and intestine.
smooth muscle is typically found in:
e. stomach and intestine
The walls of hollow organs like the stomach, intestines, bladder, and uterus, as well as the walls of passageways like blood and lymph vessels and the tracts of the respiratory, urinary, and reproductive systems, are all made of smooth muscle.
An example of a smooth muscle found in the eyes is the ciliary muscle, which also affects the lens's shape by expanding and contracting the iris.
In response to cold temperatures, smooth muscle cells in the skin, such as those of the arrector pili, cause hair to stand upright.
Definition Smooth muscle:
Different systems use smooth muscle, a type of muscle tissue, to exert pressure on organs and arteries. Sheets or strands of smooth muscle cells make up smooth muscle.
Actin and myosin fibers that run through these cells are supported by a scaffolding of other proteins. When ATP is released for utilization by the myosin, smooth muscle contracts as a result of the stimulus. In contrast to the "on-or-off" contraction of skeletal muscle, the amount of ATP released by smooth muscle is proportional to the intensity of the stimulus.
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One of the many functions of ____ is to span the plasma membrane and form channels that allow passage of molecules and ions into and out of the cell. group of answer choices
Answer:
One of the many functions of proteins is to span the plasma membrane and form channels that allow passage of molecules and ions into and out of the cell.
Explanation:
Large, complicated molecules known as proteins perform a wide range of essential functions in the body. They are crucial for the construction, operation, and control of the body's organs and tissues that carry out the majority of their job inside cells.
Numerous millions of amino acids, which seem to be smaller building blocks of proteins, are linked together in lengthy chains to form proteins. To create a protein, 20 particular types of amino acids could be mixed. Each protein's particular function and specific 3-dimensional structure are determined by the order of the amino acids. Groupings of 3 DNA building units (nucleotides), which are regulated by the order of genes, are used to code for amino acids. Cells are supported and given structure by proteins. They permit movement of the body on a greater scale as well. These proteins transport and move atoms and tiny molecules all across the body and inside cells.
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Jalil drives from Philadelphia to Pittsburgh. What would be the most appropriate SI unit to use to measure the distance he traveled?
Group of answer choices
Millimeter
Kelvin
Kilogram
Kilometer
The most appropriate unit to measure the distance traveled is Kilometer.
The kilometer is a unit of measurement of length that derives from the meter and belongs to the International System of Units. The word "kilometer" results from the combination of the prefix kilo with the word meter, which is why one kilometer is equivalent to one thousand meters.
Kilometer
How is km measured?A kilometer is a unit of length or measurement used officially to express distances between geographic locations on land in most parts of the world. 1 km = 1000 m.
How to calculate distance in physics?V = v0 + a .The distance will be the result of the velocity multiplied by the time plus the acceleration multiplied by the time squared divided by two.
With this information, we can conclude that kilometer is a Unit of measurement of length that corresponds to one thousand meters.
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The two main divisions of the nervous system are the ____ and the ____. group of answer choices
The two main divisions of the nervous system are the central nervous system and the peripheral nervous system.
The nervous system of higher vertebrates as well as humans consists of two major divisions:-
The central nervous system (CNS)The peripheral nervous system (PNS)The central nervous system comprises of the brain as well as the spinal cord. The peripheral nervous system consists of all the nerves of the body that are linked with the brain as well as the spinal cord, i.e. the CNS.
The central nervous system is associated with functions such as information processing as well as control. The peripheral nervous system is responsible for the transmission of information from the CNS to various parts of the body and forms a connection between them.
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What is the phenotypic ratio of the offspring?
Answer:
The phenotypic ratio is the distribution pattern (expressed as a ratio) of the physical characteristics in the offspring obtained after a genetic cross. So, genotypic ratio and phenotypic ratio are the two types of genetic ratios used to express the genotype and the phenotype of offspring from a genetic cross.
Explanation:
This is from biologyonline.com
Darwin called the units of inheritance that pass traits from parents to offspring.
The units of inheritance that pass traits from parents to offspring as gemmules.
What is Darwin's theory of evolution?The biological evolution via natural selection idea was put out by British biologist Charles Darwin. According to Darwin, evolution is the process through which species change over time, give rise to new species, and descend from a single ancestor.
Natural selection is the theory of evolution put forward by Charles Darwin. Given the scarcity of resources in nature, animals with heritable features that promote survival and reproduction will often produce more offspring than their contemporaries, leading to a rise in the frequency of such traits across successive generations.
Populations change throughout time through natural selection, becoming increasingly adapted to their surroundings. Natural selection is reliant on the environment and necessitates the presence of heritable variation within a population.
Therefore, the units of inheritance are called gemmules.
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In his cross, what did mendel do?
a) he did not use pure-breeding plants in his crosses.
b) he used plants that were heterozygous in his initial crosses.
c) he studied traits controlled by a single gene.
In his cross, Mendel studied traits that are typically controlled by a single gene. Thus, the correct option for this question is C.
Who is Mendel?John Gregor Mendel is known as the father of genetics. He performed his experiments on pea plants. But initially, he tried his experiments on honey bees, mice, and hawkweed.
Later, he selected 34 varieties of pea plants and works for 2 years, and then he selected one out of 34 i.e. Pisum sativum. The most important concept of his experiments is that he only studied traits controlled by a single gene. For example, seed color, seed coat, flower color, stem length, etc. The genes of these are located on differents sets of chromosomes.
Therefore, in his cross, Mendel studied traits that are typically controlled by a single gene. Thus, the correct option for this question is C.
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Which is a correct comparison of the paper model of the planet Earth to the actual planet Earth?
(1 point)
The texture of the paper model is the same as the texture of planet Earth.
The paper model shows the same details as planet Earth.
The paper model is the same shape as planet Earth.
.
The diameter paper model is proportionally the same size as the diameter of planet Earth
Answer:
Venus????
Explanation:
The correct comparison of the paper model of the planet Earth to the actual planet Earth is The diameter paper model is proportionally the same size as the diameter of planet Earth. The correct option is 2.
This means that the size of the paper model's diameter is in proportion to the actual diameter of the planet Earth. In other words, the dimensions of the paper model are scaled down or reduced to represent the size of the Earth accurately. This is a common way of creating models to study or represent large objects like planets, as it allows us to visualize and understand their characteristics on a more manageable scale.
The use of scale allows scientists, educators, or anyone interested in understanding Earth's characteristics to work with a more manageable model while preserving the relative proportions and relationships of the planet's features. It also helps in making comparisons and understanding the magnitude of different features of the Earth in a more practical way.
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An action potential involves na moving ________ the cell and k moving ________ the cell.
Inside, Outside
An action potential involves Na moving inside the cell and k moving outside the cell.
Na+ moves inside the cell during an action potential, and k+ moves outside the cell.Outside of the cells, natrium content is greater. The ion canals will open when an action potential occurs, allowing sodium or natrium to enter the cells. As a result, the potential will depolarize quickly and turn more positive. After some time, the potassium/kalium ion will leave the cell and repolarize the membrane potential, making it more negative once more.What is action potential? A abrupt, quick, transient, and propagating shift in the resting membrane potential is referred to as an action potential. The only cells that can produce action potentials are neurons and muscle cells; this quality is known as excitability.To learn more about action potential visit:
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Which organelles produce lysosomes?
Answer:
Golgi apparatus
Explanation:
Lysosome enzymes are made by proteins from the endoplasmic reticulum and enclosed within vesicles by the Golgi apparatus. Lysosomes are formed by budding from the Golgi complex.
In contrast to the sympathetic nervous system, the parasympathetic nervous system:_____.
In contrast to the sympathetic nervous system, the parasympathetic nervous system controls the functions when an individual is at rest.
Sympathetic nervous system controls the body's fight or fright response. This means it is functional when the body undergoes some stress, danger or excitement. The hormones associated with it are epinephrine and nor-epinephrine.
Parasympathetic nervous system controls all the activities that relax the body. These functions include digestion, breathing, lacrimation, etc. The chemical released during this response is acetylcholine. Acetylcholine can bind to two types of receptors: nicotinic receptors and muscarinic cholinergic receptors.
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The chemoreceptors in blood vessels that sense oxygen and carbon dioxide levels in the blood are?
Answer:
There are two kinds of respiratory chemoreceptors: arterial chemoreceptors, which monitor and respond to changes in the partial pressure of oxygen and carbon dioxide in the arterial blood, and central chemoreceptors in the brain, which respond to changes in the partial pressure of carbon dioxide in their immediate ...
While looking at tissues slides with a microscope, you identify an epithelial tissue that consists of 4 layers of thin, flat cells. this epithelial tissue would be classified as ___________.
While looking at tissues slides with a microscope, you identify an epithelial tissue that consists of 4 layers of thin, flat cells. This epithelial tissue would be classified as stratified squamous.
What is stratified squamous epithelium?Squamous (flattened and scale-like) epithelial cells make up the top layer of a stratified squamous epithelium, which is a stratified epithelium. Cuboidal or columnar cells may be present in the deeper layers. While some stratified squamous epithelia are little or not at all keratinized, others are extensively keratinized. The stratified squamous keratinized epithelium has relatively flat cells on its surface. They are flat and dead at the same time. Organelles and the nucleus are absent. Our skin is waterproof because they are loaded with keratin, a protein.
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If a cell has a relatively high energy need, you would expect it to have _________ mitochondria than a cell with a lower energy need.
If a cell has a relatively high energy need, you would expect it to have fewer mitochondria than a cell with a lower energy need. Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that provide the majority of the chemical energy required to fuel the cell's metabolic activities. Mitochondria are structures within cells that transform energy from meals into a form that cells can use.
Each cell includes hundreds to thousands of mitochondria, which are found in the fluid that surrounds the nucleus (the cytoplasm). Mitochondria (singular: mitochondrion) are a double membrane-bound organelle found in most eukaryotic species. They are present inside the cytoplasm and serve as the cell's "digestive system."
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A high school student noticed that the house plants growing near his window were
much taller than the plants growing on the other side of his room. He wondered if
the amount of sunlight the plants were receiving was affecting their growth.
What part of the scientific method does this best represent?
Answer:Photosynthesis
Which of the organelles have their own dna separate from dna contained in the nucleus?
Mitochondria and chloroplasts are the two organelles that have their DNA separated from the DNA contained in the nucleus.
Organelles are the specialized organs for a eukaryotic cell to perform various functions. They are usually protected by a membrane(s) and are found in the cytoplasm of the cell. The various organelles found in a eukaryotic cell are the nucleus, peroxisomes, lysosomes, mitochondria, chloroplasts, ribosomes, Golgi apparatus, and endoplasmic reticulum.
The nucleus is the site for DNA replication. It then produces RNA by the process of transcription. This RNA is then transferred to ribosomes for protein synthesis. These synthesized proteins are then transferred to various cell organelles to perform their specific functions.
Meanwhile, the mitochondria and chloroplasts are the two organelles that do not need proteins synthesized by the ribosomes. They can synthesize their proteins themselves as they have their DNA separated from the DNA of the nucleus. Because of this characteristic, they are also referred to as semi-autonomous.
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Embryonic mouse cells divide every 10 hours at 37C. how many cells would be produced from an egg after three days?
Embryonic mouse cells divide every 10 hours at 37°C. Therefore, the cells that would be produced from an egg after three days will be approximately 128 cells.
Embryonic mouse cells are the cells derived from the embryo of the mouse. These are the stem cells derived from the inner cell mass of the embryo. These cells are pluripotent in nature and can be used to repair any cells or tissues.
According to the question,
The cell divides every 10 hours.
Three days will have = 24 × 3 = 72 hours.
Therefore at the ends of 70 hours approximately there will be 128 cells, considering that the cell divides into 2 after every 10 hours.
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What do the processes of active transport and facilitated diffusion have in common?.
The common characteristic between active and Faciliated diffusion is that they use carrier protein in their transport.
Active transport is that type of diffusion in which molecules of the solution moves against the concentration gradient, which require energy in the form of ATP and and requirement of a carrier protein, usually a transmembrane protein for their transport.
Faciliated diffusion requires a carrier protein but not energy because the molecules move along the concentration gradient.
A Faciliated diffusion differs from passive diffusion in requirement of carrier protein, for their transport of molecules, as in passive diffusion no carrier protein is required. The diffusion takes place without energy requirement.
Osmosis is a part of passive transport, where the molecules move from their higher region concentration to lower concentration through a semi permeable membrane.
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Some of the functions of the eukaryotic organelles are performed in bacteria by the:_____.
Some of the functions of the eukaryotic organelles are performed in bacteria by the Cell Wall.
Cell Wall- The often rigid, non-living, porous wall that protects the plasma membrane, encloses and supports the cells of the majority of plants, bacteria, fungus, and algae, and is usually non-living.
Eukaryotic Organism- Every creature or cell with an identifiable nucleus. The nucleus of a eukaryotic cell, which houses the very well chromosomes (bodies holding the genetic material), is surrounded by a nuclear membrane.
Chromosome- A component that can be found in a cell's nucleus. Proteins and DNA are arranged into genes on a chromosome. There are typically 23 pairs of chromosomes in each cell.
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Generalized loss of brain tissue that results from direct alcohol toxicity is associated with alcoholic blank______, which is a global decline of intellect.
Generalized loss of brain tissue that results from direct alcohol toxicity is associated with Alcoholic dementia.
Alcohol-related dementia (ARD) is a type of dementia brought on by prolonged, excessive alcohol use, which damages the brain and impairs cognitive function.
Wet brain, sometimes referred to as Wernicke-Korsakoff syndrome, is another type of ARD that is characterized by short-term memory loss and thiamine (vitamin B1) deficiency.
Patients with ARD frequently exhibit both type's symptoms, such as memory loss, apathy, and impaired planning. ARD may coexist with different types of dementia (mixed dementia). Despite being widely accepted, the diagnosis of ARD is only occasionally used because there aren't any clear diagnostic criteria.
Hence, the patients with generalized loss of brain tissue due to direct consumption of alcohol suffers from alcoholic dementia which causes memory loss and many other problems.
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Carbohydrates that are not hydrolyzed enzymatically can be fermented by gut bacteria into _________________ in the large intestine.
Carbohydrates that are not hydrolyzed enzymatically can be fermented by gut bacteria into short chain fatty acids in the large intestine.
Carbohydrates are chemically polyhydroxy ketones and aldehydes. They can be divided into three classes: monosaccharides, disaccharides and polysaccharides. Monosaccharides act as the monomeric unit for the formation of di- and polysaccharides. Carbohydrates serve several functions like energy-containing compounds or structural compounds.
Short chain fatty acids are the fatty acids with less than 6 carbon atoms. They are formed inside the colon by certain bacteria and are an indicator of good colon health. The example are butyrate, acetate, propionate, etc. They also have anti-inflammatory properties.
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When biological molecules engage in condensation, such reactions are _________ reactions.
synthesis
When biological molecules engage in condensation, such reactions are synthesis reactions.
A huge number of monomers coming together to form a large macromolecule is what is known as a polymerization reaction. During the process, a tiny molecule like water is liberated.The new molecule is created by joining the single monomer unit. Due to the fact that a new molecule is created during this reaction, it is also known as the synthesis reaction. The synthesis reaction also results in the synthesis of biomolecules.Condensation in a biological reaction: what is it?Any of a series of reactions known as condensation reactions occurs when two molecules join, typically with the help of a catalyst, and water or another simple molecule is eliminated. Self-condensation is the joining of two identical molecules.Which are the four major biomolecules?Any of the various compounds created by cells and living things is referred to as a biomolecule, sometimes known as a biological molecule. Biomolecules come in a wide variety of shapes and sizes and serve a wide range of purposes. Proteins, lipids, nucleic acids, and carbohydrates are the four main categories of biomolecules.To learn more about biological molecules visit:
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An increased percentage of _______________________ in your blood can be caused by an acute infection, especially a bacterial infection.
An increased percentage of Septicemia in your blood can be caused by an acute infection, especially a bacterial infection.
What are the most typical reasons for infections in the bloodstream?Most frequently, bacterial infections are to blame for sepsis. But other infections may also be to blame. It can start anyplace that bacteria, parasites, fungus, viruses, or even something as little as a hangnail enter your body. Sepsis may result from osteomyelitis, an infection of the bone.
Other types of white blood cells may decrease as a result of an increase in one type of white blood cell. For instance, if you have a bacterial infection, your neutrophils would increase and your lymphocytes will decrease.
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