what is the function of the protein keratin

Answers

Answer 1

Answer:

Keratin serves important structural and protective functions, particularly in the epithelium. Some keratins have also been found to regulate key cellular activities, such as cell growth and protein synthesis


Related Questions

Complete the statement: Any mechanical device which is used to help people do work is a______.​

Answers

Answer:

Machine

Explanation:

8th grade science class vibes

NEED HELP ASAP.
What is the correct pathway of anaerobic respiration in yeast?
Choose 1 answer:
A.) Glycolysis -> Krebs cycle —> oxidative phosphorylation
B.) Glycolysis -> alcohol fermentation
C.) Glycolysis -> Krebs cycle -> fermentation
D.) Glycolysis -> lactic acid
fermentation​

Answers

Answer:

B.) Glycolysis -> alcohol fermentation

Explanation:

The correct pathway of anaerobic respiration in yeast is Glycolysis -> alcohol fermentation. Thus option B is correct.

what is alcohol fermentation ?

Alcohol fermentation is a complex process where sugars like glucose, sucrose, and fructose are converted into ethanol, carbon dioxide, and  other metabolic by-products, these products are mainly contribute to the sensorial properties and chemical composition of the fermented food.

It is also called as ethanol fermentation is processed by yeast or some other microorganisms, used to make ATP. Yeast functions in the presence of oxygen called as aerobic fermentation but it can also perform  in absence of oxygen or under anaerobic conditions.

This process show has a profound importance for the manufacturing of alcoholic beverages like beer and wine.

For more details regarding alcohol fermentation, visit

https://brainly.com/question/2095032

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which energy conversion takes place in some plant cells, but never in animal cells?

Answers

light energy to chemical energy

11. Coughing can expel ____ from the body.
A. mucus
B. food particles
C. phlegm
D. All of the above​

Answers

Answer:

D. All of the above​

It is either d or A but most likely A

A 500-gram block of solid cheese is melted in a pot. Which is most likely the
mass of the cheese after it is melted?

A. 499 grams, because some of the cheese evaporates as it melts.

B. 502 grams, because the cheese absorbs heat as it melts.

C. 500 grams, because the cheese does not gain or lose mass just because it was melted

Answers

Answer:

C

Explanation:

When it melts the mass should not change

Adenine makes up 22% of the DNA of an organism. Approximately what percentage would be thymine?

A. 28%
B. 22%
C. None of these
D. 56%

Answers

B. Thymine have the same percentage as adenine and Cytosine and guanine have 28%, which combined together you get 100%

Starch contains two polymers of glucose, they are amylose and amylopectin. Amylose differs from amylopectin in that

Answers

Answer:

Amylose is a straight chain whereas amylopectin is a branched chain polymer.

Explanation:

Amylose differs from amylopectin because amylose is a straight chain while on the other hand, amylopectin is a branched chain polymer. Branched chain polymers refers to main chain with smaller chains as branches of main chain while straight chain polymer has only main chain and no branches of main chain. Starch comprise of about 10-20% amylose and 80-90% amylopectin. Starch is considered as the main storage of energy for green plants.

The atomic number appears
A- The number of protons in the nucleus of each atom.
B- The number of electrons in the nucleus of each atom.
C- The number of protons and electrons combined in each atom.
D- The number of elements in the periodic table.

Answers

I think it’s a if I am not mistaken
A- the number of protons in the nucleus of each atom

Which phrase best discribes how scientists use the data they collect

Answers

Answer: could you copy/paste or screenshot the phrase options? It'd really help me to answer your question.

Explanation:

The feature on the ocean floor at is call a(n)

Answers

Answer:deep Ocean Frencia

Explanation:

The feature on the ocean floor at C is called a(n) deep Ocean Frencia
You’re welcome!

Can someone please help me this is Biology in 7th Grade

Answers

The correct answer is C. They move to an area with lower oxygen concentration

Explanation: Gas molecules can pass through semi-permeable which means they don’t need transport proteins for the movement

Hope this helps :))

when is cystic fibrosis exhibited?

Answers

Answer:

Diagnosing cystic fibrosis is a multistep process, and should include a newborn screening, a sweat test, a genetic or carrier test, and a clinical evaluation at a CF Foundation-accredited care center. Although most people are diagnosed with CF by the age of 2, some are diagnosed as adults.

GOTCHU

Answer: Diagnosing cystic fibrosis is a multistep process, and should include a newborn screening, a sweat test, a genetic or carrier test, and a clinical evaluation at a CF Foundation-accredited care center. Although most people are diagnosed with CF by the age of 2, some are diagnosed as adults. Also cystic fibrosis carriers do not have CF and are generally asymptomatic, there is emerging research which is finding that some carriers may have very mild symptoms associated with the genetic mutation. These symptoms may be a very pale shadow of the more severe symptoms someone with CF has.

Explanation:

how does the structure help the Hemoglobin perform its function

Answers

Answer:

structure helps stabilize the position of the attached heme

Is this the krebs cycle or the calvin cycle? They both have to do with photosynthesis.

Answers

Answer:

Im pretty sure calvin cycle!

Explanation:

click on the thing i inked to compare :)

Please answer this MCQ fast I am in trouble...... God have mercy on you and me.​

Answers

Answer:

I'm thinking its either c or b.

Explanation:

I also think its B because the effector neuron transmits impulses from the central nervous system to an effector in order to bring about a physiological response. I'm not really that good at biology.

. Which of the following describes the healthiest ecosystem? *
a. An ecosystem that has low biodiversity
b. An ecosystem that has high biodiversity
c. An ecosystem that has many more producers than any other trophic level
d. An ecosystem that has many more herbivores than any other trophic level
e. Answers B and C

Answers

Answer:

The Answer is E. Answers B and C

Explanation:

Answer:

e) Answers B and C

Explanation:

aka the 5th option

when would an offspring not exhibit an inherited mutation?

Answers

Answer:

when the paternal don't have said mutation to begin with

Explanation:

How did the 2014 Colorado case demonstrate just what a versatile zoonotic disease the plague is?

A.) In this case, antibiotics were not effective against the bacteria.
B.) In this case, scientists could not track down a specific host.
C.) In this case, the bacteria infected humans through a dog.
D.) In this case, the bacteria had been dormant for decades before regenerating.

Answers

Answer:

C). In this case, the bacteria infected humans through a dog.

Explanation:

The Colorado Department of Public Health and Environment (CDPHE) in July 2014 witnessed the 'Yersinia pestis' bacteria from the blood of a patient with Pneumonia. It was later noticed that the patient got infected through a dog suffering Hemoptysis. This pneumonic plague case even caused the human-to-human transmission of the bacteria along with the animal-to-human. Thus, option C correctly displays how the plague is a versatile zoonotic disease.

Answer: C

In this case, the bacteria infected humans through a dog.

Explanation:

got it right on my edge. test

What is the answer here?

Answers

Answer:
My best guess would be RR and rr

Select all Density independent limiting factor

Answers

Where’s the paper I don’t see it? I’m confused

Sponge larvae have cilia for
a Breathing
b Swimming
C Eating
d Respiration

Answers

The answer is b hope it’s right

Why do only house geckos and Pacific gulls have two temporal holes in their skills?

Answers

Answer:

They listen to sound and feel vibrations through those two temporal holes to grasp their surroundings and survive.

Explanation:

Hope this helped!

can someone help me this is for astronomy but there’s no option

stars produce large amounts of energy by the process of _____?

the options are
A. gravity
B. nuclear fusion
C. luminosity
D. friction

Answers

Answer:

nuclear fusion

Explanation:

Why is it important to warm up your muscles before a work out

Answers

So you don’t tear any tissue and so they get more elastic.

Chromatids are distributed to the 2 daughter nuclei Group of answer choices
M
G2
S
G1

Answers

Answer:

M

Explanation:

Mitosis is a type of cell division that involves the production of two daughter cells that are genetically identical to one another. Mitosis encompasses two stages namely: Interphase and Mitotic phase. The interphase which further consists of G1, S, and G2 phases, is a preparatory phase for the cell to grow and replicate its DNA.

However, the separation of the sister chromatids (replicated chromosomes) into two daughter nuclei occurs in the Mitotic or M phase. Note that the M phase comprises of stages that includes: prophase, metaphase, anaphase and telophase.

Answer:

M phase

Explanation:

Which population is most likely to be in Hardy-Weinberg equilibrium?
a large population of ocean fish that lives in an unpolluted ecosystem that has abundant food
a large population of prairie grasses that lives in an ecosystem that is frequently burned by wild fires
a medium-sized population of birds that lives on a chain of islands that have different food sources
a medium-sized population of bacteria that lives on crop plants that are frequently sprayed with pesticides

Answers

Answer:

a large population of ocean fish that lives in an unpolluted ecosystem that has abundant food

Explanation:

This is because the Hardy-Weinberg equilibrium states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences. So if the large population of ocean fish isn't being disturbed by the pollution (unpolluted) and they have an abundant source of food they should in Hardy-Weinberg equilibrium since no major changes are happening.

Answer:

A

Explanation:

:D

Each position of a codon can be occupied by one of four nucleotides. What is the minimum number of nucleotides per codon necessary to specify all 20 of the amino acids that are found in proteins

Answers

Answer:

The minimum number of nucleotides per codon necessary to specify all 20 amino acids that are found in proteins is 3

Explanation:

There are four nucleic acids in the RNA, adenine uracil, guanine, cytosine. Each of them combines in groups of three to give the different amino acids. In total,  there are 64 different combinations of nucleic acids that codify the 20 amino acids that we need for our vital functions.

For an organism to be considered to have the greatest level of fitness
A.it must be the strongest.
B.it must survive and reproduce.
C. it must be the smartest.
D it must live the longest.​

Answers

Answer:

b

Explanation:

it must survive to reproduce

Answer:

B

Explanation:

An organism that can survive in the environment and produce enough offspring.

The advantage of having large vertebrae at the base of the vertebral column is having stability in terms of the center of gravity of the person

Answers

Answer:

what grade are u in?

Explanation:

Examples of reproductive advantage?

Answers

Answer:

Here are the advantages and disadvantages of sexual reproduction: 1. It creates a preserved and expanding effect. This method of reproduction will help preserve an existing genetic code of an allele to make sure that a certain species does not mutate, which is essential to its multiplication.

Explanation:

hope  this helps please mark  me brainly!!

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