Why is it that intermediate filaments have identical ends and lack polarity, whereas actin filaments and microtubules have two distinct ends with a defined polarity

Answers

Answer 1

The three different types of filaments differ in terms of polarity due to their constituent parts, called soluble subunits.

What is intermediate filaments?The intermediate filament's subunits are elongated, not spherical, and they are linked together in an antipolar way. Because of this lack of polarity in the overall filament, no motor proteins can move along intermediate filaments. Only complex multicellular creatures contain intermediate filaments.Intermediate filaments are more durable and essentially serve as the cell's structural framework.Because the tubulin subunits that make up the microtubule are heterodimers of alpha and beta tubulin, the microtubule is structurally polar. The microtubule's lattice is completely polarized along its whole length, not just at its two ends.

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Related Questions

pls ans this qa i will mark u as brainlist ans​

Answers

ans b

Explanation:

milk teeth are less than permanent teeth

What is the universe made of

Answers

Answer:

composition

Explanation:

the universe is composed almost completely of dark energy, dark matter , and ordinary matter

Answer: matter , atoms

Explanation:

Sound waves travel better through solid than through a gas. Explain why this is true.

Answers

Answer:

solids are more tightly packed together (the molecules) than liquid or gas so it allows it to travel through vetter/faster

Answer:

Explanation: Solids are packed together tighter than liquids and gases, hence sound travels fastest in solids. The distances in liquids are shorter than in gases, but longer than in solids. Gases are the slowest because they are the least dense: the molecules in gases are very far apart, compared with solids and liquids

Can someone help me with this chromosome assignment?

Answers

this is the answer for only first page.

homologous, diploid,gametes,haploid

the same thing as what the other person said.

di=2

hap=1

remember that for diploid and haploid

PLEASE I NEED HELP ILL GIVE BRAINIEST !!!!

Answers

Answer:

the correct sequence of arrangement of level of ecological organization from least to most inclusive is organism,population, community

Answer:

Its below in the explanation

Explanation:

Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.

Since species is the widest category.

Surface mining is less dangerous and more profitable than subsurface mining

Answers

Answer:

Surface mining is the extraction of mineral and energy resources near Earth's surface by first removing the soil, subsoil, and overlying rock strata. ... Surface mining disturbs the land more than subsurface mining, but subsurface mining is more expensive and dangerous.

Explanation:

Scientists want to investigate the effects of chronic acidification on a desert ecosystem. Which independent variable are the scientists most likely monitoring in their investigation? a. The amount of fog during different times of the year b. The composition and amount of seasonable melt water c. The daily production of sulfur dioxide by a nearby factory d. The heaviest traffic periods of the year

Answers

The independent variable is the scientists most likely monitoring in their investigation for the investigate the effects of chronic acidification on a desert ecosystem - c. The daily production of sulfur dioxide by a nearby factory

Chronic acidification

Ecosystems result in chemical changes to soil and to surface waters and groundwater as a result of reduction of base cation or H⁺. The major effects of SO2 emission have on the soil system

An increase in contents of total sulfur, organic carbon, and exchangeable Al, leads to a lowering of pH and causes acidification of soil. Fog does not participate in acidification

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Answer: the daily production of sulfur dioxide by a nearby factory

Explanation: it was correct on the quiz

What are the biological implications of the structure of the plasma membrane (how do your results about the fluid mosaic and findings relate to life and death in the ‘real’ world? Where could the materials you worked with be found affecting the real world?)

Answers

Answer:

Structure of Plasma Membranes

The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.

Explanation:

Is the Great Green Wall an example of Secondary Succession?

Answers

Answer:

The Great Green Wall is taking root in Africa's Sahel region, at the southern edge of the Sahara desert. The Great Green Wall is a symbol of hope in the face of one of the biggest challenges of our time - desertification. This game changing African-led initiative aims to restore Africa's degraded landscapes and transform millions of lives in one of the world's poorest regions, the Sahel.

Primary succession occurs on land where no previous growth has taken place and there is no substrate/soil. Secondary succession occurs on land where there has been previous growth, the soil and seed bank makes up the substrate.

Explanation:

I majored in Biology

Which statement best explains why the classification
schemes of taxonomists have changed over time?
A. New technology like DNA sequencing allows scientist to have a more accurate genetic evolutionary history
B. New information about the genetics of species is being discovered.
C. Molecular biology has provided more detailed evidence for the relationships
between organisms.
D. All of the above

Answers

Answer:

D.

Explanation:

Sana tama kase feel ko pang

Classification of organisms is defined as dividing living beings into different kingdoms based on their genetics, traits, and other features.

Why did Classification Schemes of taxonomists change?

Taxonomists arrange and divide the organisms based on the DNA, traits, and features of the living organisms.

The advancements in technology led the taxonomists to have more information on genetic lineage and arrange them accordingly.

Introduction and discoveries of new species, their genetic make-up, and traits also contribute to the change of classification system.

Molecular biology, cellular level studies, and genetics of species have contributed to the classification of organisms.

Thus, the given statements about the classification of organisms are correct.

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which is the longest part in the alimentary canal???

Answers

Answer:  

small intestine

Explanation:

Two plants were being tested for growth. Both were given water and proper soil, etc. However, one was placed in the closet, and one was placed in the window sill. Why did the one in the closet die?

Question 4 options:

It did not have chloroplasts.


It was not around other plants.


It did not receive sunlight.


It was not around people enough.

Answers

Answer:

It did not receive sunlight.

Explanation:

Plants need sunlight to survive along with water and nutrients from the soil.

The atomic number of Re is 75. The atomic mass of one of its isotopes is 186. How many electrons are in this particular isotope.

Answers

Answer:

75 electrons

Explanation:

Since there is no charge, electrons and protons are the same number. Atomic numbers indicate the amount of protons.

What objects in the solar system are larger than earth

Answers

Answer:

the sun, jupiter, saturn, uranus, neptune

Explanation:

Anatomy
Label each of the following structures or processes.

Answers

Answer:

A - DNA

B - mRNA

C - nuclear pore

D - tRNA

E - ribosome

F - rRNA

Explanation:

The entire structure illustrates the process of transcription and translation in a typical eukaryotic cell.

The DNA (A) in the nucleus of the cell is first transcribed to mRNA (B). The mRNA produced is transported to the cytoplasm through the openings within the nuclear membrane - the nuclear pores (C). On getting to the cytoplasm, the mRNA binds to the ribosome (E) (carrying rRNA, F). The tRNA (D) carrying the specific anticodon for a particular codon on the mRNA then binds to the structure and the corresponding amino acid is released. A polypeptide bond is formed between subsequent amino acids and the ribosome moves along the mRNA chain until the translation process is complete.

Go find 5 materials that's u can use in ur garden.
Please answer. ​

Answers

Answer:

Soil knife to make digging the soil easierHandheld pruners to fix and prune the plants of your gardenGloves to keep your hands save from any harmful or chemical substance.Binder twine to maintain the plants (to tie their stems together)A notepad and pen to check the progress of your plants (e.g.: you might need to note down whether a plant may need more water or nutrients (mineral ions), if you see a plant almost wilting, appropriate actions must be taken so notepad and pen can help you track this down, so that you can get the appropriate resources needed)

(Done with the help of goxogle, but summarized, check full website here: https://gbbg.org/2020/03/5-tools-garden-bag/ )

Which of the following diagrams shows a pure substance that is composed of only individual atoms and not molecules?

Answers

Answer:Argon Gas maybe?

Explanation:Just got it right lol

Put "Single Trait Genes" in a sentence

Answers

Answer:

Mendelian inheritance refers to the inheritance of traits controlled by a single gene with two alleles, one of which may be dominant to the other. Explanation:

Hope this helps

Answer:

Basically inheritance of traits controlled by a single gene with two alleles, one of which may be dominant to the other

Explanation:

Single Genes Autosomal Traits are a example.

1 point
Which explanation best identifies the relationship between mitosis and
reproduction? *
Mitosis is a form of sexual reproduction because the daughter cells form from one
single parent cell.
Mitosis is a form of sexual reproduction because the daughter cells are genetically
different from the parent cell.
Mitosis is a form of asexual reproduction because the daughter cells form a new
nuclear membrane after reproduction
Mitosis is a form of a sexual reproduction because the daughter cells are genetically
identical to the parent cell.

Answers

Answer:

Mitosis is a form of sexual reproduction because the daughter cells are genetically identical to the parent cell.

Explanation:

If you look up your question, it will give this exact answer.

What do you think would have the greatest effect on the body—a harmful mutation in a pluripotent embryonic stem cell

Answers

Answer:

This question lacks options, the complete question is: What do you think would have the greatest effect on the body—a harmful mutation in a pluripotent embryonic stem cell, or a harmful mutation in an adult multipotent stem cell?The correct answer is a harmful mutation in a pluripotent embryonic stem cell.

Explanation:

Pluripotent Stem Cells can self-renew and differentiate into any of the three germ layers, which are: the ectoderm, the endoderm and the mesoderm. These three germ layers subsequently differentiate to form all the tissues and organs within a human being. If during embryonic development, genetic mutations - alterations in genes - occur in the embryonic stem cell, they pass to daughter cells as a consequence of cell division, and an individual is generated whose cells differ at the genetic level. Multipotent stem cells are organospecific cells, that is, they can give rise to any type of cells but from a specific organ (a lung, a kidney or the brain). Their differentiation ends the moment they specialize and become a cell with a specific function within a specific tissue or organ. If there were a mutation in these cells, it would damage a specific designed tissue or organ.

1. A group of individuals of the same species that mate and produce offspring is called a
A. gene pool.
B. niche.
C. genetic family.
D. population.

2. Any change in the genetic material of a cell is called a
A. mutation.
B. single-gene trait.
C. genotype.
D. polygenic trait.

3.In genetic terms, evolution is defined as any change in the relative frequency of
A. a single-trait gene of a population over time.
B. alleles in the gene pool of a population over time.
C. genes in a population over time.
D. phenotypes of a population over time.​

Answers

1:d
2:a
3:a
Looked them up but you know the internet and what you have been taught could be different so good luck

nsjkcccccsncdjjjjjjjjjjjjjjjjjjjjjjjjjcnndhhhhhhdsallllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllldccccccccccccccccccccccccccccccccccccccccccccc

Answers

Answer:

any problem with anthing??

during growing season when the plant photosynthesises (spring and summer) they travel down to the roots to be stored.
they go upwards when photosynthesis doesn’t occur (winter) to provide nutrients and cellular energy to parts like the leaves

The carbohydrates, proteins, and minerals that are vital to an organism’s survival are found in...
(1) oxygen
(2) carbon dioxide
(3) food
(4) water

Answers

3. Food

This is the answer..

the answer is option 3)Food

A receptor is a set of modified dendrites of the:
a. nerve.
b. interneuron.
c. motor neuron.
d. sensory neuron.

Answers

The answer is A. A nerve

Which organism(s) between w,x,y and z represent a secondary consumer ?
1.x
2.w and y
3. W,y and z
4.z

Answers

The correct answer is W. It is a secondary organism because it eats an insect. I would appreciate if you gave me a Brainliest if this helps!

put "Reproductive Isolation" in a sentence

Answers

Answer:

Reinforcement favoring reproductive isolation is required for both parapatric and sympatric speciation.

Explanation:

Hope this helps

Does anyone know how to do these 2?

Answers

Answer:

use this

Explanation:

dude dont get mad at me

3. Explain the role of organisms in the carbon
cycle and oxygen cycle ​

Answers

What organism? If its plants, they give oxygen during the day and carbon dioxide in the night. While animals give carbon dioxide but take oxygen from the air. These carbon dioxide gas and oxygen gas go to the atmosphere and affect the carbon cycle and oxygen cycle.

Here is the cycle if you want to know more

Plants (give out oxygen) -> Animals (Use oxygen) + (given our carbon dioxide) -> plants (take oxygen)

and so on

Answer:

Plants take carbon from the atmosphere in the form of carbon dioxide during photosynthesis. Plants and animals both release carbon dioxide back into the atmosphere through the process of respiration. When organisms die, some of the carbon in their bodies is stored in the soil, which can be reintroduced into the atmosphere through soil respiration.

Explanation:

sample response

Help please!! I'll name you brainliest!!

Answers

good morning! i believe have your answers :

1. when two or more elements combine to form a new substance, it is called a compound.

2. a compound is a substance that forms when two or more elements combine chemically. a compound always has the same elements in the same proportions. true

3. hydrogen and oxygen are more stable in compounds than by themselves. false

4. hydrogen and oxygen are more stable in compounds than by themselves. true

5. when atoms of different kinds combine to form a compound, a new substance is created. new compounds do not have the same physical or chemical traits of the original elements. false

- muffin

1.
Young hermit crabs pick up sea anemones which live on their shells. The stingy tentacles of the anemone keep fish from eating the hermit crab, and the sea anemone is able to eat leftover food from the hermit
crab. Which best describes the relationship between the sea anemone and the hermit crab?
A commensalism
B. O mutualism
c. parasitism
DO predation

Answers

Answer:

mutualism.

Explanation:

Mutualism can be defined as an symbiotic relationship or interaction between two or more living organisms of different species that typically involves each organism benefiting positively. Therefore, mutualism influences the survival and reproduction of living organisms in their habitats.

In this scenario, young hermit crabs pick up sea anemones which live on their shells. The stingy tentacles of the anemone keep fish from eating the hermit crab, and the sea anemone is able to eat leftover food from the hermit crab. Therefore, the relationship between the sea anemone and the hermit crab is best described as mutualism because both of them are benefiting from the interaction.

Simply stated, the sea anemone provides protection (security) from predators for the hermit crab while the hermit crab provides food for the sea anemone.

Other Questions
In the renal corpuscle, increasing the pressure in the capsular space (intracapsular pressure) will result in:A. The filtrate becoming more concentrated, in other words the osmolality would increase in the filtrateB. Glomerular filtration rate rate would increaseC. Glomerular filtration rate would decreaseD. Increasing the pressure in the capsular space would not effect GFR or filtrate osmolality File encryption protects data on a computer against the following except:A. Trojan cryptoB. hostile usersC. theftD. Trojans Consider the following abbreviated financial statements for Parrothead Enterprises: 2020 2021 PARROTHEAD ENTERPRISES 2020 and 2021 Partial Balance Sheets Assets 2020 2021 Liabilities and Owners' Equity $ $ Current assets Current liabilities 1,302 1,435 Net fixed assets 5,085 6,164 Long-term debt $ 594 $ 637 2,804 2.987 PARROTHEAD ENTERPRISES 2021 Income Statement $ Sales 16,066 Costs 7,279 Depreciation 1,459 Interest paid 452 a. What is owners' equity for 2020 and 2021? (Do not round intermediate calculations.) b. What is the change in net working capital for 2021? (Do not round intermediate calculations.) C-1. In 2021, Parrothead Enterprises purchased $2,688 in new fixed assets. How much in fixed assets did Parrothead Enterprises sell? (Do not round intermediate calculations.) c-2. In 2021, Parrothead Enterprises purchased $2,688 in new fixed assets. What is the cash flow from assets for the year? The tax rate is 24 percent. (Do not round intermediate calculations.) d-1. During 2021, Parrothead Enterprises raised $584 in new long-term debt. How much long-term debt must Parrothead Enterprises have paid off during the year? (Do not round intermediate calculations.) d-2. During 2021, Parrothead Enterprises raised $584 in new long-term debt. What is the cash flow to creditors? (Do not round intermediate calculations.) a. Owners' equity 2020 a. Owners' equity 2021 b. Change in NWC C-1. Fixed assets sold c-2. Cash flow from assets d-1. Debt retired d-2. Cash flow to creditors if the focus of change is a relatively small work group, diagnosis of the problem may be best accomplished through _________. A process has a flow rate of 12 units per day, and a throughput time of 1 day. Applying Little's Law, how much inventory will be in the process? 37 units O 12 units O 300 units O Approximately 2 units -2x - 6x =15Atenderes form A sample size that is one-fourth the original size causes the margin of error to quarter halve double quadruple remain unchanged the receiver of a parabolic satellite dish is at the focus of the parabola (see figure). write an equation for a cross section of the satellite dish. what is the relation between the number of transmit antennas and the number of receive antennas for spatial multiplexing to be possible. provide a mathematical argument for your answer. fill in the blank. currently, about _____ percent of the worlds heads of government are men. a. true b. false : a photon must have exactly the right energy to excite an electron from one energy level to another energy level. though treatment is known to work, there is no definitive answer as to which treatment works best.True or False how does shakespeare highlight the theme of love and fate through the imagery between romeo and juliet Can some one help me with it Estimate the equilibrium composition at 400K and 1 atm of the following gaseous reactions:n C Hi 2(g) iso-C H12(g) & n-C H12(g) neo-C H12(g), Standard Gibbs energy of formation data for n-pentane (1), isopentane (2), and neopentane (3) at 400K are 40.195, 34.413, and 37.640 kJ/mol, respectively. Assume ideal-gas behavior. radiographers should wear their dosimeter facing forward at the collar-level to approximate their radiation dose to the 1. thyroid gland 2. gonads 3. breasts A problem with the classical theory for radiation from a blackbody was that the theory predicted too much radiation in the ________________ wavelengths.a. visibleb. ultravioletc. infraredd. radioe. microwave coil is a large turn circular coil of radius . circular coil has turns, a radius of and is located from coil along the same axis. the planes of the two coils are parallel. If the current in coil A varies with time according to I = 16*t^3 - 90*t^2 - 1, where I is in amps and t is in s, find the magnitude of the EMF induced in coil B at time t = 5.0. So part one of the question asked for the mutual inductance which i calculated as 7.37E-4 H Im confused how to use the mutual inductance to calculate the emf in coil B how do we know that eukaryotic transcription factors bind to dna sequences at or near promoter regions? president theodore roosevelts belief that the presidency is the premier position to exercise pressure through public appeal is known as: