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

The____ of an ecosystem is based on wheather the population in the system destorys the natural resources of the system

Answers

Answer: immense

immense in the blank

please make me brainliest

according to darwin’s on the origin of species, what four factors

Answers

Answer:

(1) the potential for a species to increase in number, (2) the heritable genetic variation of individuals in a species due to mutation and sexual reproduction, (3) competition for limited resources, and (4) the proliferation of those organisms that are better able to survive and reproduce in the environment.

Explanation:

Which organism described below makes its own food?
yoo yoo ill rlly apriciate if someone helps me

Answers

A
Explanation:
everything else finds or eats food that was made otherwise.

plzzz helpppppppppppppp

Answers

the answer is J, as they both only eat animals

What are there scientific name.

Please Answer​

Answers

Answer:

manubruim = trapezoid

I hope it helps you

What happens if the mass of the elements is greater compared to smaller ?

Answers

Hello. More information is needed to answer your question accurately. However, I will try to help you in the best possible way

If you are referring to what happens if the mass of an atom is greater compared to an atomic number, we can say that there is nothing too much, since it is normal for the atoms to have a mass slightly greater than the atomic number. The mass of an atom can never be less than the number of protons added to the number of neutrons. An atom with greater mass has a greater number of electrons and neutrons in relation to an atom of less mass and it is likely that the atom of less mass will donate or share electron with the atom of greater mass so that both reach the electric balance.

What are the effects of cystic fibrosis

Answers

Answer: the effects of cystic fibrosis are thick mucus that clogs certain organs, such as the lungs and intestines etc . This may cause malnutrition, poor growth, frequent respiratory infections, breathing problems, and chronic lung disease.

Proteins are:
a. Resistible to structural changes.
b. Polymers of amino acids bound by peptide bonds.
c. Have different structures but same function.
d. All hydrophilic​

Answers

Hello there!

Proteins are created by the bonding of amino acids. The bonds are called peptide bonds.

So the answer must be b.

I hope this helps!! :)

B. The polymers of amino acids are bounded by peptide bounds or polypeptides

Which one of the following statements is not true? Enzymes,

A) are typically consumed by the reactions they promote

B) are proteins that change the rate of chemical reactions.

C) have structures that correspond to their function.

D) function as organic catalysts.

E) regulate virtually all chemical reactions in a cell.

Answers

Answer:

statement c

Explanation:

d and c are very different so it would be those two but function is organic so its c

why the cycle play an important role in the environment​

Answers

The hydrological cycle is important because it is how water gets to plants, animals and us

How can we use science and math to develop a cost-benefit
analysis to help manage natural resources?

Answers


Cost–benefit analysis (CBA), also known as benefit–cost analysis, is rooted in applied welfare economics. It is a way of organizing and analyzing data as an aid to thinking. It provides a set of procedures for comparing benefits and costs and is traditionally associated with government intervention and with the evaluation of government action and government projects. The underlying rationale for CBA is rational choice; that is, a rational agent will weigh the costs and benefits of any proposed activity and will only undertake the activity if the benefits exceed the costs

Drag the tiles to the correct boxes to complete the pairs. Identify the type of energy described in each sentence.

Pairs:
The body stores lipids ingested as fat and uses Thai energy when needed.

A persons hat falls off and lands on the ground.

A wave of water pushes a surfer to shore.

A burner on a stove heats up a tea kettle.

A power plant splits atoms to generate power for a city.

A nerve sends an impulse to another nerve.

A plant absorbs the suns rays to start the process of photosynthesis.

Tiles:
Gravitational Energy
Mechanical Energy
Chemical Energy
Electrical Energy
Thermal Energy
Nuclear Energy
Radiant Energy

Answers

Answer:

chemical energy

gravitational energy

mechanical energy

thermal energy

nuclear energy

electrical energy

radiant energy

Explanation:

Edmentum users .

_____% of species present during the Permian survived into the Triassic.

Answers

Answer: 30

Explanation:

which statement is correct about the rocks in this location

Answers

Answer:

They are all made out of a different amount of minerals and for in various ways such as igneous forming from cooled magma

Hope this helps!

Oxygen molecules are sixteen times as massive as hydrogen molecules.

At the same temperature, which type of molecule would you expect to move faster?

Answers

Answer: hydrogen molecules.

Explanation: in same temperature molecules have same average kinetic energy.

You can estimate it solving E = 3/2 kT = 1/2 mv². Constant k is Boltzmann constant.

Lighter molecule has greater speed

Which of the following fresh water biomes consists of moving water

Answers

Answer:

Biomes consists of moving water is estuaries.

Which of the following symptoms is absent in “the depletion syndrome of the elderly”?
feeling worthless
losing interest in things
physical symptoms
self-blame

Answers

Answer:

self-blame i think if i am wrong pls tell me

*15 points* Earth Science
Based on the picture, how many tilting events has this area undergone, and which principle tells us that this area has undergone tilting?

Answers

Just saying it says 8 points ya little baka

O
Facial expressions - How you look in front of your audience based
on your face can affect how they perceive you. If you are nervous
and cannot control it, your fear often shows on your face. If you
smile at them while you talk, they will think that you are happy
talking to them.​

Answers

so what's the question here??

describe sporangium fungi and club​

Answers

Answer:

A sporangium (pl., sporangia) (modern Latin, from Greek σπόρος (sporos) 'spore' + ἀγγεῖον (angeion) 'vessel') is an enclosure in which spores are formed. It can be composed of a single cell or can be multicellular. All plants, fungi, and many other lineages form sporangia at some point in their life cycle.

Explanation:

Why should everyone be encouraged to take an HIV blood test?​

Answers

to slow down and prevent it's spread

Explanation:

testing is the only way to know for sure if you have HIV. Knowing your status means you keep yourself and your sexual partners healthy.

What does "fishing down the food web" mean?​

Answers

Answer:

Fishing down the food web is the process whereby fisheries in a given ecosystem, "having depleted the large predatory fish on top of the food web, turn to increasingly smaller species, finally ending up with previously spurned small fish and invertebrates".

PLEASE HELP! I DONT UNDERSTAND

what is the equation of Photosynthesis and cellular respiration in a chemical formula?

Answers

Answer:

I would type it up, but I decided to insert a picture.

Explanation:

The table below shows the average distances of four planets from the sun.

Considering Kepler's Laws, which planet has the fastest average orbital speed?

A. Venus
B. Neptune
C. Saturn
D. Jupiter

Answers

Answer:

Venus

Explanation:

The closer a planet is to the Sun the faster it moves because the Sun can exert more gravitational force on it. Venus is the second closest planet to the Sun therefore the fastest out of the options.

Its Venus.

It is closer to the sun than the other planets on here.

protest bushes,palm trees and maize plants are all flowering plants ?​

Answers

Answer:

The great centres of palm distribution are in America and in Asia from India to Japan and south to Australia and the islands of the Pacific and Indian oceans, with Africa and Madagascar as a third but much less important palm region.

What cell parts are common to all of these cells?
Use complete sentences.

Chlamydomonas
Spirogyra
Elodea
Squamous Epithelium

Answers

Answer: All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell's interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell; and (4). The cells of most Chlamydomonas species are more or less oval and feature a noncellulosic membrane (theca), a stigma (eyespot), and a usually cup-shaped chloroplast. Although photosynthesis occurs, nutrients also may be absorbed through the cell surface. Asexual reproduction is by zoospores.  The filamentous masses come to the surface and become visible as slimy green mats. Spirogyra has a cell wall, nucleus, pyrenoid and spiral chloroplasts.  This Elodea leaf cell exemplifies a typical plant cell. It has a nucleus, and a stiff cell wall which gives the cell its box-like shape. The numerous green chloroplasts allow the cell to make its own food (by photosynthesis). The central vacuole takes up most of the volume of the cell. Squamous cells tend to have horizontally flattened, nearly oval-shaped nuclei because of the thin, flattened form of the cell. Squamous epithelium is found lining surfaces such as skin or alveoli in the lung, enabling simple passive diffusion as also found in the alveolar epithelium in the lungs. brainliest?

Explanation:

Human caused reductions of biodiversity, include pollution, invasive species, and overexploitation.
O True
O False

Answers

Answer:

True

Explanation:

Development, together with globalization, drove severe changes at a global level. The natural and original environments suffered from these effects and still are.

Human beings have constantly been altering the natural ecosystems and causing irreparable damages to nature. For many decades, development involved society and technology advance over new areas unpopulated by humans.

Some of the principal human activities responsible for biodiversity loss are

the uncontrolled use of unrenewable resources, overexploitation of renewable resources; land destruction for the mining industry, farming and cattle industry, buildings, and other infrastructures; the unplanned advance of cities, and opening of new roads to connect those cities.  

All of them involving

deforestation and fragmentation of natural landscapes; water, air, and soil pollution, species loss, and reduction of biodiversity.

With globalization, transport around the world became normal. And when traveling around the world, new species are intentionally or unintentionally transported too. When these species, of animal or vegetable origin, get established in a new area, they overgrow to the point of turning invasive.

Invasive species are uncontrollable and cause severe damage in native endemic species by competing for resources. The whole ecosystem structure changes.

But there are some background glitches in the system that are the principal responsible for all the mentioned activities. Some important aspects are lacking

The respect for nature, People´s education at different levels to care and protect wildlife, Interest in keeping ancestral knowledge, Planning and previous environmental impact studies, Policies to control human activities, Caring involved government.

If, as a society, we lack these aspects, the possibilities of changing our impact on nature are far away.  

8. Which of the following correctly shows one path that energy would
flow through this ecosystem?
Grasses -- Termite -- Monkey -- Eagle
Hyena -- Mongoose - Mouse - Grasses
Grasses - Termite - Grasshopper -- Monkey
Acadia trees - Giraffe
-- Lion -- Vulture

Answers

grassses -- Termite -- Monkey -- Eagle

How many hydrogen bonds are present in the base pairing of guanine and cytosine?
3

Answers

Answer:

3 Hydrogen bonds

Explanation:

Cytosine and guanine pairing can be found in both DNA and DNA-RNA hybrid formed during replication and transcription. The two nitrogenous bases are held together by three hydrogen bonds.

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.

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