What is the function of the following organelles?
Nucleus
Cell membrane
Plasma membrane
Mitochondria
Vacuole
Endoplasmic reticulum
Cell wall
Chloroplasts
Ribosomes
Cytoplasm
Are the following organelles found in plant cells, animal cells, or both?
Nucleus
Cell membrane
Plasma membrane
Mitochondria
Vacuole
Endoplasmic reticulum
Cell wall
Chloroplasts
Ribosomes
Cytoplasm
Answers
Answer:
Explanation:
The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information
The the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions.
The plasma membrane is the same as a cell membrane
Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate
Vacuole. A vacuole is a membrane-bound cell organelle. In animal cells, vacuoles are generally small and help sequester waste products. In plant cells, vacuoles help maintain water balance.
The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins.
The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. It also allows cells to develop turgor pressure, which is the pressure of the cell contents against the cell wall.
In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules; cell walls allow plants to have rigid structures as varied as wood trunks and supple leaves; and vacuoles allow plant cells to change size.
A ribosome is a cellular particle made of RNA and protein that serves as the site for protein synthesis in the cell. The ribosome reads the sequence of the messenger RNA (mRNA) and, using the genetic code, translates the sequence of RNA bases into a sequence of amino acids.
The cytoplasm is the gel-like fluid inside the cell. It is the medium for chemical reaction. It provides a platform upon which other organelles can operate within the cell. All of the functions for cell expansion, growth and replication are carried out in the cytoplasm of a cell.
Related Questions
red blood cells are 0.9% nacl. red blood cells are placed into flasks containing solutions of varying nacl concentrations. identify if the solutions are isotonic, hypertonic, or hypotonic, and then predict what will happen to the red blood cells (cytolysis, shrivel, plasmolysis, turgor pressure increases/decreases or nothing).
Answers
In isotonic NaCl, red blood cells have their typical volume. In NaCl 0.9%, erythrocytes stay intact, resulting in an opaque solution. Conversely, distilled water is hypotonic to red blood cells.
When a cell is immersed in a hypertonic solution, there is a net flow of water out of the cell, causing it to lose volume.
When a cell is immersed in a hypotonic solution, there is a net flow of water into the cell, and the cell expands.
When a cell is immersed in an isotonic solution, there is no net movement of water into or out of the cell, and the volume of the cell remains constant
The solute potential is equal to the water potential in a totally plasmolyzed cell, and the pressure against the cell wall is zero.
The water pressure inside plant cells is known as turgor pressure, and it is maintained through osmosis. The force within the cell that pushes the plasma membrane against the cell wall is known as turgor pressure.
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Which of the following would be classified as a renewable resource?
O A barrel of oil that would take 8 million years to form.
A large piece of coal that would take 4 million years to form.
O Solar rays from the Sun that take 8 minutes to reach the Earth.
O Methane gas from the ocean floor that takes 7 thousand years to outgas.
Answers
Consider a food web in which snakes eat mice; toads eat beetles; owls eat mice and toads; eagles eat rabbits, snakes, and owls; cougars eat deer; and foxes eat rabbits and mice. What animal occupies (gets energy in) more than one trophic level
Answers
The animal that takes energy from more than one trophic level is eagle due to eating of many organisms.
Which animal gets energy in more than one trophic level?The eagle is the animal that takes energy from more than one trophic level in the given food web because in this food web eagle feeds on animals such as rabbit, reptile such as snake and bird such as owls.
So we can conclude that the animal that takes energy from more than one trophic level is eagle.
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In this case, the owls and eagles are two animals that occupy more than one trophic level in the food web.
What is a trophic level?A trophic level is a specific position in the food web that one population and/or organism occupies in the ecosystem.
An organism can have different roles in an ecosystem and thus occupy more than one trophic level.
Organisms in the first trophic level are called producers, whereas primary consumers are located in the second level.
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What action releases energy from an ATP molecule for use by the cell?
O energy being recycled after other reactions are complete
O increasing reaction rates during metabolism
ATP binding to other molecules during a reaction
breaking the bond of a phosphate molecule
Answers
When a cell needs to expend energy, the ATP molecule splits off one of its three phosphates, becoming ADP phosphate. The energy that was holding that phosphate molecule is now free to accomplish work for the cell.
To generate energy, ATP reacts with what?When the cell requires energy to perform work, ATP loses its third phosphate group, releasing energy held in the bond for the cell to use. It is now returned to ADP and ready to store the energy from respiration by connecting with a third phosphate group. In this way, ADP and ATP are continually converting back and forth.
ATP is also produced through the process of cellular respiration in the cell's mitochondria.
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What is the one characteristic, besides function and nucleotide sequence, that makes all the different types of RNA different from each other?
Answers
Answer: One of the primary differences between DNA and RNA is that DNA is double-stranded while RNA is single-stranded.
1. The seed coat or shell of the seed protects the seedling from the outside world. What is this similar to in a plant cell?
2. What type of system is our seedling in? How does it function?
Answers
Answer:
1. Cell wall
I'm not sure what system the seedling is in though
How can you test the idea that solar energy is required for the reduction of NADP+ to NADPH?
Answers
Answer:
In addition to biology, evidence drawn from many different disciplines, including chemistry, geology, and mathematics, supports models of the origin of life on Earth. In order to determine when the first forms of life likely formed, the rate of radioactive decay can be used to determine the age of the oldest rocks (see optional problems C and D, below) exposed on Earth’s surface. These are found to be approximately 3.5 billion years old. The age of rocks can be correlated to fossils of the earliest forms of life. A. The graph compares times of divergence from the last common ancestor based on the fossil record with a "molecular time" constructed by comparing sequences of conserved proteins to determine a mutation rate (after Hedges and Kumar, Trends in Genetics, 2003). Explain how such a molecular clock could be refined to infer time or the evolution of prokaryotes. B. Using a molecular clock constructed from 32 conserved proteins, Hedges and colleagues (Battistuzzi et al., BMC Evol. Biol. 2004) estimated the times during which key biological processes evolved. A diagram based on their work is shown. Connect the time of the origin of life inferred from this diagram with the age of the oldest fossil stromatolites and the age of the oldest exposed rock to show how evidence from different scientific disciplines provides support for the concept of evolution. Evaluate the legitimacy of claims drawn from these different disciplines (biology, geology, and mathematics) regarding the origin of life on Earth. The oldest known rocks are exposed at three locations: Greenland, Australia, and Swaziland. The following application of mathematical methods provides essential evidence of the minimum age of Earth.
Explanation:
What do scientists need to look at before developing an argument? The validity of data, claims, hypotheses, and observations. Their opinion and personal views. The arguments of famous people on the topic. The arguments that make the most sense for society.
Answers
Answer:
The validity of data, claims, hypotheses, and observations.
Explanation:
Scientific objectivity, free from personal bias & socially desirable norms : is very important for developing a valid scientific argument.
So, before developing an argument, scientists need to look at : The validity of data, claims, hypotheses, and observations. Their opinion and personal views, the arguments that make the most sense for society - are not needed to be looked upon here . However, The arguments of famous people on the topic can also serve as a good preliminary literature base for developing an argument
Answer:
A.) The validity of data, claims, hypothesis, and observations.
Explanation:
I jus got 100% on the quiz.
In Alaska, grizzly bears must eat 10 fish and drink up to 25 liters of water to live. A
local river can provide about 150 fish a day without damaging the fish population. How many bears can this area support?
Answers
This area support can support about 15 bears if each bear eats 10 fish in a day.
What are the characteristics of grizzly bears?Grizzly bears are a large specie of bears. There are different ranges of colors i.e. from very light tan to dark brown. These bears have a dished face, rounded ears, and a shoulder hump. The hump is the place where a mass of muscles attach to the backbone of the bear and gives the bear more strength for digging. Grizzly bears feed mostly on animals that die in the winter season, but the bear can also hunt elk calves. Other items are eaten during spring like grasses, sedges, dandelions, clover, horsetail, and ants. A river provides about 150 fish per day so the carrying capacity of this region has 15 bears.
So we can conclude that 15 bears can be supported by the region without damaging its fish population.
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Extra food is stored in a roots _______?
A.vascular cylinder
B.cortex
C.epidermis
D.pith
Answers
A population of 40 deer are introduced into a wildlife sanctuary. It is estimated that the sanctuary can
sustain up to 600 deer. Absent constraints, the population would grow by 60% per year. Estimate the population
after one year Pi Estimate the population after two years P2 -
Answers
The population of deer in the wildlife sanctuary can be estimated using the formula:
P(t) = P(0) * (1 + r)^t
where P(t) is the population after t years, P(0) is the initial population, r is the growth rate per year, and t is the number of years.
In this case, the initial population (P(0)) is 40 deer, the growth rate (r) is 60% per year (0.60), and we need to estimate the population after one year (P1) and two years (P2).
To calculate P1:
P(1) = 40 * (1 + 0.60)^1
P(1) = 40 * (1 + 0.60)
P(1) = 40 * 1.60
P(1) = 64
Therefore, the estimated population after one year is 64 deer.
To calculate P2:
P(2) = 40 * (1 + 0.60)^2
P(2) = 40 * (1 + 0.60)^2
P(2) = 40 * 1.60^2
P(2) = 40 * 2.56
P(2) = 102.4
Therefore, the estimated population after two years is 102.4 deer.
It's important to note that these are estimates and assume that there are no constraints on the population growth. In reality, factors like limited resources, predation, and disease can affect the growth rate and population size.
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Identify the following:
A: amino acid
B: simple sugar
C: nucleotide
D: fatty acid
Answers
Answer:
Nucleotide
Explanation:
A nucleotide is made from a pentose sugar (deoxyribose sugar), a nitrogenous base, and a phosphate group. Which fits the image shown.
The ___________________ is a system of structures that includes the ____________. This system has been implicated in ________________________.
Answers
Answer:
The limbic system is a system of structures that includes the amygdala. This system has been implicated in emotion behavior.
Explanation: Hello! I answered your question but know how to explain. :)
Capillary sphincter closure during internal or external bleeding is detrimental because:
A. available blood is shunted off to another venule while still carrying oxygen.
B. waste products are not removed and nutrients are not delivered to the cells.
C. carbon dioxide and other waste can enter the cells, but oxygen cannot.
D. high levels of oxygen remain in the cells and can cause significant damage.
Answers
Capillary sphincter closure during internal or external bleeding is detrimental because it leads to waste products not being removed and nutrients not being delivered to the cells. (option b)
This is because capillary sphincters are circular muscular bands that regulate blood flow by opening and closing based on the tissue's metabolic needs. When capillary sphincters are closed, blood flow to the region decreases, thereby reducing the amount of oxygen and nutrients supplied to the surrounding cells. Capillary sphincter closure during internal or external bleeding, however, worsens the situation by depriving the cells of nutrients and oxygen.
The muscles and other tissues may become hypoxic as a result of this deficiency, leading to cell death and/or long-term damage. Blood flow is diverted to areas with higher oxygen demands, such as the heart and brain, during capillary sphincter closure. It's important to remember that the body's internal processes are inextricably linked. Even minor changes in blood flow or nutrient supply can have significant effects on the functioning of an organ or system.
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Define the following terms
=>Cell
=>Mitochondria
=>Nucleus
Thank U
Answers
Answer:
the cell is the smallest living unit of life
the mitochondria is the organelle that aids in the produ ruin of ATP through aerobic respiration
the nucleus is the membrane bound organelle that's found in eukaryotic cells
thank u is from Thank u Next by miss Ari
Explanation:
=>Cell: cell is defined as basic,structural and functional unit of life.
=>Mitochondria : mitochondria is power house of plant cell.
=>Nucleus: nucleus is a part of cell responsible for cell division and for reproduction.
HELP ME NOW ASAP PLEASE HURRY HELP ME NOW
Answers
Answer:
i think the best answer is A
Explanation:
the rest don't make much sense
hope this helped a bit
Which of the cells characterized in the chart above is a plant cell?
Answers
Answer:
cell A
Explanation:
because only plant cells have chloroplast
Please describe this picture using directional terminology, body planes and body movements.
Answers
The human body is a complex organism and understanding its structure and functions requires a thorough knowledge of directional terminology, body planes, and body movements. In this image, we can see a person performing a side plank exercise which is an effective core-strengthening exercise.
We can also use directional terminology to describe the person's movements. The person is performing a lateral flexion to the side while maintaining an isometric contraction of the core muscles. The movement involves the transverse axis of the body, which runs from front to back, perpendicular to the frontal plane.
In conclusion, this picture shows a person performing a side plank exercise, positioned on the frontal plane and performing a lateral flexion movement. The person is using their core muscles to maintain the position while one arm is supporting their weight and the other arm is extended towards the ceiling.
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PLEASE HELP (40 POINTS) What role might the processes of protein synthesis play in using CRISPR to modify a defective gene in an organism’s DNA? Do you think CRISPR and other forms of genetic engineering are helpful or harmful to humans?
Use what you know about protein synthesis to reflect on these questions.
Create a presentation of your ideas. Your presentation can be verbal, written, or drawn. Be sure to explain the reasoning behind your ideas. Be prepared to defend your ideas by considering a variety of different perspectives.
Answers
Answer:
That looks hard, search on google.
Explanation:
1. Which of the following is an example of sensitization:
You blink each time your eye doctor gives you a puff of air in your eyes.
A dog was hit by his previous owner, and now the dog cowers each time his new owner reaches out to pet him.
You no longer feel your shirt touching your skin.
You're walking on the sidewalk and a bicyclist almost hits you, so you jump out of the way.
Answers
The example of sensitization from the given alternatives is that 'A dog was hit by his previous owner, and now the dog cowers each time his new owner reaches out to pet him.'
Sensitization refers to the process in which an organism becomes more sensitive to stimuli, both good and bad. It happens when the body's nervous system becomes oversensitized to a particular stimulus that it begins to respond even to weaker or non-threatening stimuli.
The example given in the first option refers to a simple reflex action that occurs in response to the puff of air that is blown into the eyes during the eye examination. The third option is about sensory adaptation, which occurs when sensory receptors are exposed to stimuli for an extended period, resulting in a reduction in sensitivity. The fourth option refers to the fight or flight response that occurs as a result of a threatening stimulus, in which an individual's body prepares to confront or flee from danger.
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Which base is not found in DNA?.
Answers
Answer: Uracil
Explanation:
Uracil is a base that is not found in DNA
true or false: if a sibling has a fully matched mhc haplotype with a patient, that sibling can donate organs to the patient with no risk of transplant rejection. group of answer choices
Answers
The statement "if a sibling has a fully matched mhc haplotype with a patient, that sibling can donate organs to the patient with no risk of transplant rejection" is false. While having a fully matched MHC (major histocompatibility complex) haplotype with a patient is beneficial for organ transplantation, it does not guarantee that there will be no risk of transplant rejection.
The MHC is a set of cell surface proteins that play a crucial role in the immune response. MHC molecules help the immune system distinguish between self and non-self cells, and a close match between the donor and recipient MHC molecules reduces the likelihood of rejection.
However, there are other factors involved in organ transplantation, such as minor histocompatibility antigens and non-MHC-related factors, that can still trigger an immune response and potentially lead to rejection. The immune system is complex and can recognize and react to various components of the transplanted organ.
To minimize the risk of rejection, healthcare professionals use various strategies, including immunosuppressive medications, to suppress the recipient's immune response and improve the chances of a successful organ transplant. It is important to carefully match not only the MHC but also other relevant factors to increase the compatibility between the donor and recipient and maximize the chances of a successful transplant.
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What are some effects of prostaglandins in the body?
Answers
A class of lipids called prostaglandins is typically produced at the sites of injury or infection and is used to treat both disease and injury. They regulate functions like blood flow, blood clot formation, inflammation, as well as labor induction.
Arachidonic acid, from whom prostaglandins are generated, is what causes inflammation:
In synthetic form, prostaglandins are used to induce labor and give birth. They trigger uterine contractions and have a ring structure with at least two or three and perhaps more carbons.Effects of prostaglandins in the body are
The hormone that circulates and regulates the kidney's reabsorption of sodium. Prostaglandins, which seem to be present in high concentrations, directly affect nerve terminals to induce pain.The production of the inflammatory response is significantly influenced by prostaglandins. Their production is markedly increased in inflamed tissue, therefore they help to produce the essential symptoms of acute inflammation.NSAIDs (which inhibit cyclooxygenase) as well as COX-2 selective inhibitors, sometimes known as coxibs, were examples of prostaglandin antagonists. Cyclopentenone prostaglandins as well as corticosteroids, which block the formation of phospholipase A2, might help to reduce inflammation.To know more about Prostaglandins here
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The number of European water voles in the UK has declined drastically. To prevent extinction, an organisation has re-introduced water voles into areas where their populations had disappeared. This is an example of a __________ __________. What two words complete the sentence?
Answers
According to the information, this is an example of site management and monitoring.
What is Extinction?Extinction may be characterized as a type of gradual process through which there is a complete disappearance of a species from Earth. Species go extinct every year, but historically the average rate of extinction has been very slow with a few exceptions.
Vegetation management to maintain shelter and foraging resources. managing the potential risks from increased human presence and pollution. Water quality management to make sure it's maintained or improved at the site monitoring water vole populations after development.
Therefore, the reintroduction of water voles into areas where their populations had disappeared represents an example of site management and monitoring.
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The two major components of the Earth's atmosphere are _____ and _____.
oxygen
carbon dioxide
nitrogen
water vapor
yall can c h a t here :)
If you think you are too small to make a difference,
try sleeping with a mosquito. -Dalai Lama.
Answers
Answer:
nitrogen
oxygen
Explanation:
Answer:
Los principales gases que la componen son: el oxígeno (21 %) y el nitrógeno (78 %)
Explanation:
4. If a bear walks 2 miles east, then 5 miles west, what is its total displacement?
(5 Points)
Answers
It's total displacement is 7 miles
Why is the sky blue?
Why does the moon appear in the daytime?
How much does the sky weigh?
How much does the Earth weigh?
How do airplanes stay in the air?
Why is water wet?
What makes a rainbow?
Why don't birds get electrocuted when they land on an electric wire?
Answers
Answer:
1: because the sea reflects up to the sky and that's why the sky is blue
Answer:
1. Because its the reflection off the ocean
2. Because its the moons reflection across the sky
3. Depends on the layer of the sky your talkin about
4. 5.972 × 10^24 kg
5. The wings catch the wind and the thrusters in the back help keep it up.
6. because its H2O and thats just how it is.
7. Because they have hollow legs which helps them not get eletrocuted because it just passes through their legs
Explanation:
What is serum troponin
Answers
Answer:
Serum troponin refers to a group of proteins found in cardiac and skeletal muscle cells that are released into the bloodstream after a heart attack or other types of heart damage. Measuring the levels of troponin in the blood can help diagnose and monitor various heart conditions, as elevated levels of troponin are a sign of cardiac injury or damage.
in humans, there are four blood types: a, b, ab and o. each parent can give their offspring one of three blood type alleles, ia (coding for phenotype a), ib (coding for phenotype b), or neither, which is expressed as i (coding for phenotype o). this trait displays codominance. tina has type o blood and her sister rosa has type ab blood. what are the blood genotypes their parents must have?
Answers
Humans have four blood types: A, B, AB, and O, which are determined by three blood type alleles: IA, IB, and i. Codominance is displayed in this trait.
Tina has type O blood, which means she must have inherited an i allele from each parent.
Rosa has type AB blood, indicating that she inherited an IA allele from one parent and an IB allele from the other.
Therefore, for their offspring to have the observed blood types, one parent must have the genotype IAi and the other must have the genotype IBi.
In summary, the blood genotypes of the parents of Tina and Rosa must be IAi and IBi, respectively.
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The only possible combination of genotypes for their parents is IAi and IBi. This would allow for one parent to pass on an i allele to Tina and an IA allele to Rosa, and the other parent to pass on an i allele to Tina and an IB allele to Rosa.
In humans, there are four blood types: A, B, AB, and O. Each parent can give their offspring one of three blood type alleles, IA (coding for phenotype A), IB (coding for phenotype B), or neither, which is expressed as i (coding for phenotype O). This trait displays codominance. Tina has type O blood and her sister Rosa has type AB blood. The blood genotypes their parents must have are IAi and IBi.
The reason for this is that Tina has type O blood, which means she has two i alleles (ii). This means that both of her parents must have at least one i allele to pass on to her. Rosa has type AB blood, which means she has one IA allele and one IB allele. This means that one parent must have an IA allele and the other parent must have an IB allele.
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It tells whether the solute is soft or hard, powder or a whole piece.
a. Manner of stirring
b. Temperature
C. Nature of solute
d. Nature of solvent
Answers
Answer:
Nature of solvent
Explanation:
I think the answer is D, nature of solvent.