Cytokensis is the physical process of cell division. It divides the cytoplasm of a parental cell into two different daughter cells.
In plants, a cell wall forms. Cytokensis occurs in mitosis and meiosis. The objective for cytokensis is to divide the parent cell into two daughter cells. So cytokensis in plants is when a cell wall forms in between the daughter cells. Plant cells have walls, so they CANNOT divide using a cleavage furrow. A cell plate forms across the cell during telophase.
In animal cells, cleavage furrow forms. This pinches the cell in half and forms two different cells.
A cleavage furrow is an indentation that appears in the cells surface when the cell is preparing to divide.
So, let's review our options:
A: Animal cells get pinched into two daughter cells by the cell membrane; the plant cell has to form a cell plate before it can create daughter cells.
This would be the correct answer. The only main difference between animal cell cytokensis vs plant cell cytokensis is the cell wall that animal cells lack. Animal cells get pinched into two daughter cells, by the cleavage furrow in the cell membrane, while the plant cell has to form a cell plate before it can create daughter cells.
B: Animal cells give daughter cells a full set of chromosomes at the time of division; plant cells give daughter cells a half set of chromosomes. .
This can be disproven. In meosis, a cell divides into four cells that have half the number of chromosomes. In mitosis, all chromosomes are kept. Both Plant & Animal cells both reproduce using both both meosis and mitosis, so this option is irrelevant.
C: Animal cells require an extra grow phase before cytokensis; plant cells move straight to cytokensis.
Both animal cells and plant cells have the same amount of "grow phases" before cytokensis. This option is irrelevant.
D: Animal cells begin cytokensis during anaphase, plant cells begin around the same time as telophase.
They both begin during the same time. This option is also irrelevant.
Animal cells undergo cytokinesis through the pinching of the cell membrane, while plant cells form a cell plate to divide the cytoplasm. Animal cells provide daughter cells with a full set of chromosomes, while plant cells give daughter cells a half set of chromosomes. Animal cells require an extra growth phase and begin cytokinesis during anaphase, while plant cells move straight to cytokinesis and begin around telophase.
Explanation:In animal cells, cytokinesis occurs by the pinching of the cell membrane, forming a constriction known as the cleavage furrow. On the other hand, plant cells form a cell plate that eventually develops into a cell wall, dividing the cytoplasm into two daughter cells.
Additionally, animal cells provide each daughter cell with a full set of chromosomes, while plant cells give each daughter cell a half set of chromosomes.
Moreover, animal cells require an extra growth phase before cytokinesis, while plant cells directly transition to cytokinesis. In animal cells, cytokinesis begins during anaphase, while plant cells start cytokinesis around the same time as telophase.
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How does an "activated" receptor transfer information into the cell?a. by increased translation of the receptorb. by altering the ligand-binding site of the receptorc. through a conformational change of the receptord. by decreased phosphorylation of the receptor
The correct answer is: c. through a conformational change of the receptor
When a ligand binds to receptor that is located on a cell surface, signal has to be transported into the cell. Usually, intracellular domain of the receptor changes its “shape” (conformation) which may make it active as an enzyme or available for other molecules binding. For example, the receptor may turn on signaling molecule inside of the cell and activates further chain reactions. Consequently, the cell responses by changing its behavior or characteristics.
What question would the nurse consider when determining the ability of a patient diagnosed with schizophrenia to ensure his or her own personal safety?
Does the patient appear to have mobility problems?
hope this helps :)
Within any large animal population, there is a variety of traits. And between different animal populati. ons, there is a variety of traits A. never, always B. always, always C. sometimes, sometimes D. never, sometimes
the answer to your question is B
Predict: Of the molecules shown on the CHEMICALS pane, which do you think are reactants (ingredients) in photosynthesis? Which do you think are products?
Reactants: ___________________________ Products: ___________________________
reactants in photosynthesis are carbon dioxide, water, and sunlight.
products are oxygen and sugar(glucose)
hope this helps. ( ' _ ' )
Reactants: Carbon dioxide (CO₂), water (H₂O), and light energy.
Products: Glucose (C₆H₁₂O₆) and oxygen (O₂).
In photosynthesis, plants convert carbon dioxide, water, and light energy into glucose and oxygen. The reactants, which are the ingredients needed for the photosynthesis process, are carbon dioxide, water, and light energy. Carbon dioxide is taken in from the atmosphere through small openings called stomata in the plant's leaves. Water is absorbed from the soil through the plant's roots. Light energy is absorbed by chlorophyll, a pigment found in the chloroplasts of plant cells. These reactants undergo a series of complex chemical reactions in the chloroplasts to produce glucose and oxygen.
Glucose is the primary product of photosynthesis, and it is a type of sugar that serves as an essential source of energy for the plant. It can be used immediately by the plant for energy or converted into starch for storage. Oxygen is the byproduct of photosynthesis, and it is released back into the atmosphere through the stomata. Oxygen is essential for most living organisms on Earth as it is used in cellular respiration, the process by which cells generate energy from glucose.
In summary, carbon dioxide, water, and light energy are the reactants that fuel the process of photosynthesis, while glucose and oxygen are the products that are formed as a result of this process.
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The process of circular motion in the Earth's mantle that causes the plates of the lithosphere to move is called A) conduction. B) convection. C) deposition. D) drifting.
The process of circular motion in the Earth's mantle that causes the plates of the lithosphere to move is called convection.
The answer is B. convection
Hope this helps :)
Answer:
B) convection
Explanation:
Here's why: Convection currents are warm and rise above cooler air, which causes the circular movement in the mantle. This makes the plates of the lithosphere move.
Which of the following is a correct statement about nephrons?
Materials such as urea and water are filtered out of the blood in the glomerulus, but glucose is reabsorbed out of the blood by the renal tubules.
Materials such as glucose and water are reabsorbed out of the blood in the glomerulus, but urea is filtered out of the blood by the renal tubules.
Materials such as urea, water, and glucose are reabsorbed out of the blood in the glomerulus, and water and glucose are then filtered back into the blood by the renal tubules.
Materials such as urea, water, and glucose are filtered out of the blood in the glomerulus, and water and glucose are then reabsorbed into the blood by the renal tubules.
Answer:
Materials such as urea, water, and glucose are filtered out of the blood in the glomerulus, and water and glucose are then reabsorbed into the blood by the renal tubules.
Explanation:
A pair of Kidneys is the principal excretory organ of the humans. Each kidney is composed of millions of its unit called nephrons. The nephron is the functional unit of the kidney as it filters out urea, water, and glucose from the bloodstream through the process of ultrafiltration. The filtered out material is called nephric filtrate. The filtrate then moves various tubules, called renal tubules where important molecules such as glucose, ions and water are reabsorbed into the blood.
Materials such as urea, water, and glucose are filtered out of the blood in the glomerulus, and water and glucose are then reabsorbed into the blood by the renal tubules.
Explanation:The correct statement about nephrons is: Materials such as urea, water, and glucose are filtered out of the blood in the glomerulus, and water and glucose are then reabsorbed into the blood by the renal tubules.
The glomerulus filters materials like urea, water, and glucose out of the blood, while the renal tubules reabsorb water and glucose back into the blood. This process helps maintain proper balance of substances in the body. An example of this process occurs in the kidneys, where glucose, water, salts, ions, and amino acids needed by the body are filtered and reabsorbed in different parts of the nephron.
The first 22 chromosomes contain hundreds of genes in the same positions and sequence. If the code of the gene from one parent is exactly like the code on the same gene from the other parent, the gene pair is
The gene pair is identical.
Identify the correct sequence of the following events.
(a) Myosin generates a power stroke. (b) Ca+ binds to troponin. (c) ATP recharges the myosin head. (d) Troponin removes tropomyosin from G actin. (e) The sarcomere shortens. (f) Myosin binds to actin. Identify the correct sequence of the following events. (a) Myosin generates a power stroke. (b) Ca+ binds to troponin. (c) ATP recharges the myosin head. (d) Troponin removes tropomyosin from G actin. (e) The sarcomere shortens. (f) Myosin binds to actin.
d, b, f , c, a, e
e, c, a, b, d, f
f, a, c, e, d, b
b, d, f, a, e, c
a, b, c, d, e, f
b, f, a, c, e, d
The fourth option. B,d,f,a,e,c
PLZZ HELPS I'M TIMED!!
Which option distinguishes the governmental agency in charge of the aspect of farming described in the following scenario?
A rancher in Wyoming wishes to increase the number of cattle in his herd, but he owns too little pastureland. He would like to graze his new cattle on the adjacent federal rangeland.
A.) Bureau of Land Management
B.) Food and Drug Administration
C.) Environmental Protection Agency
D.) United States Department of Agriculture
I would say A becuase the rancher wants to use land that isn't his for his cattle.
Answer:
The correct answer is A. The governmental agency in charge of the aspect of farming described in the scenario is the Bureau of Land Management.
Explanation:
The Bureau of Land Management is an agency of the US Department of the Interior. The agency is responsible for managing around 1,020,000 km² of public lands, land owned by the state, as well as raw materials under a total of around 2,800,000 km² of public lands. Most of those tracts of land are in the western US, including Alaska. The agency's objectives include maintaining the health, diversity and productivity of the public lands for the use and benefit of Americans, also in the future.
Why are there limited levels of consumers? For example, apex predators are usually tertiary or quaternary consumers. Why don’t we have many 5th, 6th, or 7th level consumers?
energy is lost at each level of consumption so it’s simply not efficient to be a 5th + level consumer
Why do mitochondria and chloroplasts have small genomes?
The mitochondria and chloroplasts in eukaryotic cells are descendant from bacteria. Ancient eukaryotic cells ingested these bacteria and they became part of the larger cell structure. Mitochondria and chloroplasts work symbiotically with the cell to provide it with energy. Because these mitochondria and chloroplasts used to be separate bacteria living on their own, they had their own small circular DNA like all bacteria do. When they became part of the eukaryotic cell they retained this DNA. Mitochondria and chloroplasts also reproduce similar to bacteria and replicate their DNA the same way. In this way, all mitochondria and chloroplasts in the organism contain the same circular small genome, just like all nuclei in the organism contain the same spiral DNA.
Final answer:
Mitochondria and chloroplasts have small genomes due to their origin as endosymbiotic bacteria and the transfer of many genes to the host cell's nucleus.
Explanation:
Mitochondria and chloroplasts have small genomes due to their origin as endosymbiotic bacteria. These organelles were once free-living bacteria that were engulfed by a host cell and established a symbiotic relationship. Over time, many genes necessary for their function have been transferred to the host cell's nucleus, leading to a reduction in the size of their genomes. Mitochondrial genomes are typically around 16,000 base pairs in length and encode about 40 genes, while chloroplast genomes are larger at around 120,000-170,000 base pairs and encode around 100 genes. The reduced size minimizes the risk of harmful mutations, safeguarding the stability of these vital components. So, the small genomes of mitochondria and chloroplasts aren't a sign of weakness, but a result of their remarkable adaptation.
When carbon is in the atmosphere,it's usually in the from of molecules of , which is a
Answer:
atom characters till 20
Explanation:
Why is it that bacterial ribosomes can begin translation before mRNA synthesis is completed, but eukaryotic ribosomes cannot? See Section 17.3 (Page 356) .
mRNA splicing occurs very quickly in prokaryotic cells.
Prokaryotic mRNAs are elongated differently from eukaryotic mRNAs.
In prokaryotes, transcription and translation take place in the cytoplasm.
Prokaryotic mRNAs are synthesized with ribosomes attached.
The correct answer is: In prokaryotes, transcription and translation take place in the cytoplasm.
Since there is no nucleus in prokaryotic cell (e.g. bacteria cell) transcription and translation are coupled processes that occur in the cytoplasm meaning that they occur simultaneously. Genetic material of the prokaryotes s called nucleoid and it is not located inside the membrane-bound organelle, thus it is in direct contact with ribosomes in the cytoplasm. Translation of messenger RNA by the ribosomes might occurred while mRNA is still being transcribed from DNA.
Match each cell organelle with its description
Answer:
Attached diagram shows how they match up;
Explanation:
Centrioles - cylindrical tubular organelles that are involved in cell division
Endoplasmic reticulum - tube-like structures that are the site of protein and lipid synthesis
Chloroplasts - contain chlorophyll and are the site of photosynthesis
Lysosome - digestion organelles that break down biomolecules into smaller molecules
Mitochondria - the site of cellular respiration and energy production
Answer:
The correct answer will be:
1. Centrioles- cylindrical tubular organelles that are involved in cell division
2. Endoplasmic reticulum-tube-like structures that are the site of protein and lipid synthesis
3. Chloroplasts- contain chlorophyll and are the site of photosynthesis
4. Lysosome- digestion organelles that break down biomolecules into smaller molecules
5. Mitochondria- the site of cellular respiration and energy production
Explanation:
Centrioles: are the cylindrical organelles occur in pairs found near the nucleus in animal cells. They function in the development of spindle fibers during cell division.
Endoplasmic reticulum: are tube like structures present in the cells. They are of two types rough endoplasmic reticulum (RER) and smooth endoplasmic reticulum (SER). Protein synthesis takes place in RER while lipid synthesis take place in SER.
Chloroplasts- are double membrane bound organelles which performs the function of absorbing sunlight and performing the photosynthesis.
Lysosomes- are suicidal bags of cell because they store hydrolytic enzymes which can degrade the large molecules like DNA, proteins and many.
Mitochondria- double membrane structure which are associate with respiration and making ATP molecules from the oxidation of glucose via ETS.
Axon diameter and degree of myelination determine nerve impulse conduction velocity.
True
False
The answer is true.
The myelin sheath covers many axons in central nervous system (CNS) ( by oligodendrocytes) and in the peripheral nervous system (PNS) (by Schwann cells). Their function is to insulate axons and to increase the speed at which information travels from one nerve cell to another.
Nerve conduction velocity is specific to each individual and depend largely onboth an axon's diameter and the level to which that axon is myelinated.
_____ is an essential lung-coating substance that keeps air sacs from collapsing.
A nurse is caring for a client with alcoholism who has been admitted for detoxification. when should the nurse expect the effects of alcohol withdrawal to appear? what are the manifestations of acute alcohol withdrawal?
The severity of withdrawal can vary from mild symptoms however, they usually begin 6 to 24 hours after the last drink. These symptoms include delirium, hallucinations, and autonomic instability.
If a cell is going through mitosis and it has 16 chromosomes, how many chromosomes will the daughter cell have?
A. 8
B. 32
C. 16
D. 10
I think the daughter cell will have A. 8 cells
Please help me!!!
You are the first responder on a crime scene. You arrive and find yourself in an odd room— empty of everything except the body of an old man who has been decapitated; his head is nowhere to be found. You can clearly tell the no one else is around and the body looks like it has been here for days. What would be one of the first things you would document after arriving on the scene?
The age and overall appearance of the body
Whether the doors and windows in the room were open or closed
The estimated time of death of the victim
The presence of a murder weapon
Personally I would say the age and appearance of the body. It's of course the first thing you look at, and identifying the victim is one of the most important things to do when beginning an investigation.
Answer: Whether the doors and windows in the room were open or closed.
Explanation:
A first responder is a officer who reaches at the crime scene for the first time and conducts the investigation. Such officer notices the condition of the crime scene, makes notes, documents the crime scene by taking photographs and sketches.
According to the given situation, Whether the doors and windows in the room were open or closed. is the correct option.
This is because of the fact that this will help him identify whether it was a homicide. As if the old man could have killed himself the doors and windows will be closed. But if the doors and windows were found to be open this indicates that the criminal could have used the doors and windows to escape.
What area in the brain sets the respiratory rhythm?
The correct answer is: medulla oblongata.
This is a structure of central nervous system and it is located in the brainstem. Medulla oblongata is responsible for autonomic (involuntary) functions of the body such as breathing, heart rate and blood pressure. The medulla contains the cardiac, respiratory, vomiting and vasomotor centers.
Respiratory rhythm is regulated by groups of chemoreceptors that detect changes in the acidity of the blood and send signal to medulla oblongata in order to regulate it.
The medulla oblongata in the brain controls the respiratory rhythm.
Explanation:The area in the brain that sets the respiratory rhythm is called the medulla oblongata. The medulla oblongata is located in the brainstem and controls essential functions like breathing, heart rate, and blood pressure.
Within the medulla oblongata, there are specialized groups of neurons called the respiratory centers which regulate the respiratory rhythm. These centers receive input from sensors that detect the levels of carbon dioxide and oxygen in the blood, as well as signals from the respiratory muscles.
When the respiratory centers detect an imbalance in oxygen or carbon dioxide levels, they send signals to the muscles involved in breathing, causing them to contract or relax in order to adjust the breathing rate and depth.
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Hey! Can someone please help me with these 2 questions? Thanks!
Hey your answers are:
1. C
2.D
Answer:
Explanation:
Option C is Corpus collasum
Next is cerebrum
"suppose you hold a 10 pound weight steadily in your right hand with your elbow slightlly bent, so that you maintain a contraction of your biceps brachii muscle.after some time, you experience pain and it becomes increasingly difficult to keep the weight at the same level. explain why this is so."
After holding the weight for so long, the muscle would get tired, in an effort to tell the brain to stop holding the weight because the muscle fibers cannot handle it any more. Lactic acid is a by-product during muscle contraction that leads to the pain.
Which words or phrases identify common types of map projections? Check all that apply
conic ,equal-area,Mercator
A,D,E
Explanation: I just did the Quiz.
Answer:
a d e
Explanation:
The w-4 form is completed by an individual when he or she first starts a new job. what does this form help to determine? brainly
The W-4 is a tax form that you complete and give to your employer (not the IRS) for federal tax (and some state tax) withholding. It tells your employer how much federal and/or state tax you wish to have withheld from each paycheck in a pay period. Your W-4 affects how big a refund you will get, or how much tax you will owe, when you file a tax return on Tax Day.
Answer:
The amount of money that should be withheld in federal taxes
Explanation:
A large portion of employers is in agreement with the federal government to take care of the tax remittance of their employees.
For It to be done, the employers gives out w-4 forms to be completed by all of its employees. The details supplied in the w-4 help is emploued by the IRS to estimate the sum that needed for remittance in federal tax. Each moment a salary is paid the deduction occurs automatically in relation to the tax payments.
Sseveral information viewed as operational expense can be tabled so as to decrease the sum paid as tax abd be eligible for tax refund from the IRS.
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Which of the following correctly identifies the connective tissue that connects muscles to bone, allowing a muscle to contract and pull on a bone in a way that makes the bone move?
thick filaments
ligament
tendon
periosteum
The answer to this question is tendon.
Tendon connect muscle to bone
Ligament connect one bone to another bone
Periosteum covers the outer surface of all bones /doesn't connect anything
Loss of muscle coordination results from the damage to what?
This is ataxia caused by a dysfunction of the cerebellum - a region of the brain involved in the assimilation of sensory perception, coordination, and motor control. Cerebellar ataxia can cause neurological problems such as: ... lack of coordination between organs, muscles, limbs, or joints.
The loss of muscle coordination is usually caused by damage to the cerebellum, a part of the brain responsible for coordination, precision and accurate timing of movements.
Explanation:The loss of muscle coordination primarily results from damage to the cerebellum. The cerebellum is a part of the brain that plays a vital role in motor control. It does not initiate movement, but it contributes significantly to coordination, precision, and the accurate timing of movements. Hence, any damage to the cerebellum can cause problems in balance, posture, and coordination of voluntary movements. Loss of muscle coordination, also known as ataxia, results from damage to the cerebellum in the brain. The cerebellum is responsible for coordinating voluntary movements and maintaining balance. Damage to this area can be caused by various factors, such as brain injury, stroke, or certain neurological disorders.
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Wind moves from an area of high pressure to an area of which type of pressure? A. low B. high C. equal D. cold
This is called the coriolis effect. So in the northern hemisphere, winds blow clockwise around an area of high pressure and counter-clockwise around low pressure.
UR ANSWER IS A.LOW
Answer;
A)LOW
Explanation:
Wind usually move from high-pressure areas to low-pressure areas. When the difference between the pressures is very huge, their will be faster movement of the air from the high to the low pressure side.
whenever there is High pressure in an area, it signifies that the atmospheric pressure of that particular are is high when compared to that of the surrounding areas. On the other hand when the pressure of a particular area is low, it signifies that the atmospheric pressure of that particular area is low or less when it is compared to that of the surrounding areas.
An instrument that is devices for the measurement of air pressure is called barometer.
The device contains mercury in the small basin, with an upside down glass tube located in the mercury. It operates in the sense that when the air pressure is increased, the pressure would force more mercury in the tube.
All vascular plants have specialized tissues and _[blank]_.
produce spores
produce spores, seeds, and flowers
produce seeds
have a life cycle that alternates generations
The right answer is "have a life cycle that alternates generations"
The alternation of generations (metagenesis) is a characteristic of plants' life cycle. A generation is a stage of multicellular development stemming from a cellular stage (spore or gamete) and producing a cellular stage (gamete or spore). The generation producing gametes is the gametophyte, and the generation producing spores is the sporophyte. In general, a gametophyte alternates with a sporophyte. When mature, the sporophyte produces spores.
Maria wakes up in the morning and takes a shower, drinks a glass of water, washes her clothes in the laundry machine, and then goes to work. Which of the following describes Maria's water use appropriately? Maria's water use in nonconsumptive. Maria's water use is consumptive. Maria uses no fresh water for these activities. Maria's water use leaves no ecological footprint.
The correct option is this: MARIA'S WATER USE IS CONSUMPTIVE.
Water use can be consumptive or non consumptive. Consumptive water use refers to the process of using water in such a way that the water used can not be returned to the water resources system.
The water that Maria used to shower, the one she drank and the one she used to wash her laundry are waste water, which are not returned to the central water resources system, thus, Maria's water use is consumptive.
When using ___________, finalists are banded together into rank-ordered categories. select one:
a. ranking
b. random selection
c. clinical prediction
d. grouping?
D.grouping ?
im not sure.. but ihope it helps u dear :)