Cytochalasin is a drug that caps actin filament plus ends, thus preventing actin polymerization. Phalloidin is a drug that binds to and stabilizes actin filaments, preventing actin depolymerization. Even though these drugs have opposite effects on actin polymerization, the addition of either of these drugs instantaneously freezes the cell movements that depends on actin filaments. Explain why drugs that have opposite effects on actin filaments can have a similar effect on cell movements.

Answers

Answer 1

Answer:

The correct answer is - these drugs inhibit both the polymerization and depolymerization of actin.

Explanation:

Cytochalasin is a chemical drug that covers or hides the plus end of the actin filament which inhibits the binding of actin monomers and actin polymerization on another hand the Phalloidin chemical makes the actin filaments stable by attaching to them and inhibits the depolymerization process.

The addition of any of these drugs stops the cell movement which is caused by the actin polymerization and depolymerization which is stoped by these drugs. Cell movement is the process that required both actin polymerization and depolymerization.


Related Questions

Helppp me pls :$$)))

Answers

Answer:

A. containers A and B represent mixtures

# 14 please!!!! will give brainliest

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Answer:

Within the bone marrow, all blood cells originate from a single type of unspecialized cell called a stem cell. When a stem cell divides, it first becomes an immature red blood cell, white blood cell, or platelet-producing cell.

Explanation:

I am not sure if this helps you....

Match the elements to their periodic table groups based on their uses or properties

Answers

do you have a picture? as I’m unsure which elements need matching

A desert has a lower species richness than a tropical rainforest.
O True
O False

Answers

Answer:

True

Explanation:

when is the best time to harvest crops?why?​

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[tex] \huge \bold \blue{★Question★}[/tex]

When is the best time to harvest crops? why?

[tex] \huge \bold \blue{★Answer★}[/tex]

Correct timing of harvest is crucial to crop loss prevention. Grain losses may occur caused by rats, birds, lodging, insects, and shattering. Timely harvesting ensures good grain quality and high market value.

Harvesting too early will result in a higher percentage of unfilled or immature grains, which will lower the yield and cause higher grain breakage during milling. Harvesting too late will lead to excessive losses and increased breakage in rice. Harvest time also affects the germination potential of rice seed.

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There are different ways to determine the correct harvest time:

Moisture content

Grain moisture content ideally is between 20−25% (wet basis). Grains should be firm but not brittle when squeezed between the teeth.

Ripe grains per panicle

The crop should be cut when 80−85% of the grains are straw (i.e., yellow-colored).

Number of days after sowing

Generally, the ideal harvest time lies between 130 and 136 days after sowing for late, 113 and 125 for medium, and 110 days for early-maturing varieties.

Number of days after heading

For dry season harvesting, an optimum time is 28 to 35 days after heading. In wet season harvest, optimum time is 32 to 38 days after heading.

Other considerations

Harvesting also needs to be timed so that threshing can be done as soon as possible after cutting to avoid rewetting and to reduce grain breakage.

If the crop has a lot of surface moisture, (e.g. from previous rainfall or early in the morning), it is advisable to wait until the surface moisture dries off.

Which sensory receptor is found in the skin?

Answers

Answer:

The cutaneous receptors' are the types of sensory receptor found in the dermis or epidermis. They are a part of the somatosensory system. Cutaneous receptors include cutaneous mechanoreceptors, nociceptors (pain) and thermoreceptors (temperature).

Explanation:

I think it will be heplful

Desmosomes are made of the following cellular components

Answers

Answer:

jdhhdhdhhdhdhdbndbbdndb

In pea plants, two stem lengths are possible: tall (T) and dwarf (t). Tall is dominant to dwarf. a. In a purebred tall plant, what gametes are possible? ___________________ b. In a purebred dwarf plant, what gametes are possible? ___________________ c. What is the genotype of a purebred tall plant? ___________________ d. What is the genotype of a purebred dwarf plant?

Answers

Answer:

a. only T gametes

b. only t gametes

c. TT

d. tt

Explanation:

This question involves a single gene coding for stem length in pea plant. The allele for tall stem length (T) is dominant to dwarf stem length (t).

- A purebred is an organism that will only transfer one type of phenotype to its offspring or produce only one type of GAMETE. Hence, to do this, a purebred must have a homzygous genotype. According to this question;

a. A purebred tall plant (TT) will produce only 'T' gametes.

b. A purebred dwarf plant (tt) will produce only 't' gametes.

c. The genotype of a purebred tall plant will be 'TT'

d. The genotype of a purebred dwarf plant will be 'tt'

How do you delete.a questuion

Answers

There’s 3 grey dots and it will give you 3 options it’s report answer and delete it in the top right corner

Answer:

There’s 3 grey dots and it will give you 3 options it’s report answer and delete it in the top right corner

brainleist?

Explanation:

why is cancer considered a genetic disease of somatic cell?​

Answers

The transformation of a normal cell into a cancer cell takes place through a sequence of a small number of discrete genetic events, somatic mutations: thus, cancer can be regarded properly as a genetic disease of somatic cells

Butterflies exposed to radiation leaking from a damaged nuclear power plant in Japan have been observed to have malformed legs and Tanner and wings.For future butterflies to have structural abnormalities and gene mutations what must be present in the affected butterflies

Answers

Answer:BODY CELLS

Explanation: dont delete its true

What is the name of the bond that is created when two amino acids

Answers

Answer: peptide bonds

Explanation: I think that's the answer.

help, please........

Answers

Answer:

i dont know sorry

Explanation:

5. How does the current leaving the cell in a parallel circuit compare
with the current in a series circuit, if both circuits have the same
type of cell and the same number of identical flashlight bulbs?

Answers

Answer:

circuit compare

with the current in a series circuit, if both circuits have the same

type of cell and the same number of identical flashlight bulbs?

Which sign best represents the role of decomposers?

Answers

Decomposers eat the dead/decaying life, and eventually give it back to the earth. So recycling (B) seems like the best answer.

According to the context, recycling sign is the one that best represents the role of decomposers.

What is the role of decomposers?

They are those who take care of taking advantage of the matter and energy that the remains of animals and plants present.

Thanks to them it is possible to recycle various elements by decomposing the organic matter of said organisms, until transforming them into inorganic matter.

Therefore, we can conclude that according to the context, recycling sign is the one that best represents the role of decomposers.

Learn more about the role of decomposers here: https://brainly.com/question/15560086

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What is the benefit of using stem cells?

Answers

Answer:

On this website it said stem cells help treat incisions, wounds, and many other health conditions. Basically it can treat injured tissues efficiently and it can specialize in different kinds of tissue cells such as nerve, blood, or muscle cells.

The largest population an environment can support is its
A. symbiosis.
B.carrying capacity.
C.population.
D.limiting factor

Answers

Answer:

B. carrying capacity

Explanation

Carrying Capacity is the maximum number of individuals one species that a particular environment can support

Pls answer

The human body needs minerals to survive. Without
minerals, the body could not function properly. The minerals
that make up rocks are the same minerals that someone
might eat in a bowl of cereal! The body needs about 80
different types of minerals to function properly. Iron enriches
the blood, salt maintains fluid balance, calcium fortifies the
bones, and fluorine strengthens the teeth. Most vital
minerals can be absorbed into the body from eating plants
and lean meats. However, many food manufacturers add
minerals to their products to make them more desirable to
consumers. Eating a balanced diet can ensure that the
proper amount of these essential minerals is ingested.

Question:

The passage tells us that "many food manufacturers add minerals to their products to make them more desirable to consumers." Do you think that this is a good idea? What are the pros and cons?

Answers

Answer:

You have to put down what you think and not what other people thing

Explanation:

You can simply answer this question yourself by doing research or just thinking if its a good idea

Eating vegetables and lean meats can help the body absorb the majority of essential nutrients. However, many food producers add minerals to their products to increase customer appeal.

What are nutrients?

Chemical elements known as nutrients are present in all living things on Earth. They are essential to the survival of all living things, including humans, animals, and plants.

The breakdown of food by nutrients provides energy for living things. They are utilised in every bodily function of an organism.

The majority of vital nutrients can be more easily absorbed by the body when veggies and lean meats are consumed.

To boost consumer appeal, several food companies do, however, add minerals to their products.

Although processing has many advantages, it can also be harmful and reduce the nutritional value of food.

For instance, blanching causes vitamin and mineral leaching losses. Additionally, during processing, milling and extrusion might result in the physical removal of minerals.

Thus, these are some pros and cons of the given scenario.

For more details regarding nutrients, visit:

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What is natural selection
In a paragraph
This is for 8 grade but can someone help me

Answers

Answer:

Natural selection is a pressure that causes groups of organisms to change over time. Animals inherit their genetics from their parents or ancestors, and the environment is constantly changing.

Explanation:

(self-explanatory)

In which region would you find the lowest concentration of public land in the United States?
a.
the Pacific Northwest
b.
the West coast
c.
New England
d.
the Midwest


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:

answer is c - new England

Answer:

It is C

Explanation:


2. Two organisms would be most closely related if both have the same classification in which of the following groups?
A. Kingdom B. Phylum C. Class
D. Species

Answers

Answer: D. Species

Explanation:

Species is a group of population in which organisms have many common characteristics and they are capable of interbreeding and producing viable fertile offsprings. The members belonging to the same class and phylum have less common characteristics if they interbreed they may not produce viable fertile offsprings. Also, the organisms of the same kingdom have least common characteristics and will not have viable fertile offsprings after interbreeding.

what is the name given to a fruit with no seeds​

Answers

Answer:

parthenocarpy

Explanation:

4. Think of 5 different muscles in your body and list them. You don't have to use the scientific name. Classify these muscles as either voluntary or involuntary and identify if they are cardiac, smooth or skeletal muscle.

Please answer ASAP​

Answers

Answer:

cardiac muscles: involuntary, cardiac

triceps: voluntary

biceps:voluntary

deltoid:voluntary

quadriceps:voluntary, skeleton

Innocent suspects will never falsely confess to crimes they did not commit.
True
False

Answers

Answer: true

Explanation: I think it’s true. I hope I could help

In the Arctic, seals are one of the main sources of food for polar bears. As global warming melts polar ice, fewer seals can be found in the Arctic. As a result, polar bears will —

A. maintain a constant population.


B. decrease in number.


C. migrate to tropical regions.


D. increase in number.

Answers

Decrease in numbers, because of their lack of a food source.

Answer:

Decrease in number.

Explanation:

They have less food and they will not be able to survive without food.

Thermococcus and thermoplasma what do they have in common?

Answers

Explanation:

Both Thermococcus and Thermoplasma are unicellular organisms that can live in extreme environments. Based on the concept of domains, what do they have in common? They both belong to domain Archaea. ... They both belong to domain Eukarya.

Line B in the given graph represents the reaction with an enzyme added to substrates. How did the enzyme affect the reaction?

Answers

Answer:

a. lower activation level

Explanation:

To help your investigation, here is some more data about the farm.
The chicken population was started with chicks from a different farm.
Chickens are raised in barns where bacteria can spread easily between chickens.
CJ, E. Coli, and Salmonella bacteria are all present in the barns.
Some of the E. Coli and Salmonella bacteria have alleles that make them resistant to the FQ antibiotic.
To stop disease from growing in the barn, the FQ antibiotic is fed to the chickens a lot.
Choose which way of evolution caused the FQ antibiotic resistance.
Gene Flow
Genetic Drift
Natural Selection
What is the best fit option here? Form a hyptothesis
This is my hypothesis, is it right ?
If the chicken population is consistently given the FQ antibiotic, then natural selection leads to antibiotic resistance, because some chickens could have some of the bacterias that develop mutations allele and they can resist against FQ antibiotics.Bacteria which are resistant will continue to increases and grows in number over time. In the end, the chicken population are mainly resistant bacterial, thus making this the likely mechanism of evolution.

Answers

Answer:

1) Natural selection

2) Hypothesis: The excessive use of FQ antibiotics on chickens leads to the fixation of new genes -by natural selection- that result from mutations in the bacterial genetic material, which makes these cells become even more resistant to the drug.  

Explanation:

1) Natural selection selects beneficial alleles and increases their frequency in the population.

Natural selection results in adaptation, which means the increase of the aptitude phenotype. Aptitude is the contribution of each genotype to the next generation.

In many cases adaptations, resulting from natural selection can be correlated to environmental factors or selective pressures applied by other organisms or habitat.  

Let us remember that, a mutation is a change or alteration in DNI sequences that introduce new variants. Many of these are eliminated, but some of them might succeed and be incorporated into each individual. These mutations are the ones that have been selected by natural selection.

So, in the exposed chickens´ example, we are focussing on bacteria populations.

The selective pressure or modeling environmental factor is the FQ antibiotic. The bacteria´s response to antibiotics is the survival of only those that carry mutations. Natural selection benefits these mutations. Bacteria survive and become more resistant

2) Hypothesis.  

First, remember that the hypothesis is a conjecture.   The researcher hypothesizes in order to predict what is going on or what is expected to occur. A hypothesis is a claim of how it works a relation between two or more variables. Usually, it is written in the present time.

So in this example, we want to correlate the use of antibiotics with bacteria resistance.

I would hypothezise as following,

The excessive use of FQ antibiotics on chickens leads to the fixation of new genes -by natural selection- that result from mutations in the bacterial genetic material, which makes these cells become even more resistant to the drug.

This hypothesis probably states the same as yours but turns to be more concise. The hypothesis needs to go to the point. If you want to be more specific, you can probably add some specific hypotheses to dig into your work.

 

We have that the,Natural selection caused the FQ antibiotic resistance.

Natural selection

Generally , Natural resolution causes a reaction that leads to antibiotic resistance, Mutation in micro organism make them resistant to antibiotics and when they reproduce similarly ,they will pass by this resistant trait to their offspring, which will outcomes into a completely resistant generation.

In the give up ,result is a populace of in most cases resistant bacteria.

For more information on Mutation visit

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One of the purposes of transcription is to produce a sequence of bases that

А. transforms into carbohydrate molecules.

B. replicates molecules of DNA without using sugars.

C. codes for the manufacture of a specific protein.

D. substitutes for essential amino acids.

Answers

Answer:А. transforms into carbohydrate molecules.

Explanation:

Match each explanation to the correct step of the Scientific
Method.​

Answers

Explanation:

Hi!! sorry to take up this space and probably waste your time but you didn't insert a picture or equation!! I'm so sorry, I'd help you otherwise!

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