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

HEYY GUYYYSS Heelppp ILL MARK you BraINLiEST

Answers

Answer:

#1, #2, and #4 are all true. #3 is false

Explanation:

PLEASE ANSWER————-Apply: Where in the Gizmo (and in real life) do the following energy conversions occur?
26.
Chemical to thermal to electrical current:
27
Gravitational potential to kinetic to electrical
current:
28.
Electrical to sound, radiant and thermal energy
29.
Nuclear to thermal to electrical current

Answers

Answer:

I'm not sure but I think the answer is 28

Explination:

Electrical energy is a form of energy resulting from the flow of electric charge whereas Gizmos are in microwave and etc which includes electrical,sound,radiant,and thermal energy.

If the amount of food for a population decreases, the population _____________ .

A) grows larger

B) gets smaller

C) remains the same

Answers

the answer is b) gets smaller
If u think about it the food is decreasing so that would mean less population but with no food / shortage this can cause people to die so it would be (B) cause how are they going to survive with shortage of food .So the answer is B . Srry if wrong but this explains a lot .

Most of the ___-____ pathways within____require_______, and that is the reason we need to____, or ______.

Answers

Answer:

What's the subject?

And are there any word choices?

Explanation:

9) The process of photosynthesis uses the carbon in
carbon dioxide molecules as building blocks for
which type of molecule? (Think (H1706)

Answers

Answer:

Explanation:

carbohydrate molecules -

Photosynthesis uses carbon dioxide and water to assemble carbohydrate molecules (usually glucose) and releases oxygen into the air.

What
factors can be used to identify
prokaryotes?​

Answers

Answer:

Prokaryotes are highly distinguished from Eukaryotes, mainly on the basis of their nucleus type. As the word itself suggest that Pro means Primitive and Karyon means Nucleus, while Eu means Specialized and Karyon means Nucleus. Hence, Eukaryotes are more equipped than Prokaryotes. Prokaryotes are mainly found between  1-10 µ and Eukaryotes between 5-100 µ. Prokaryotes mainly have a poorly defined nuclear region with only nucleic acids called a Nucleoid and lack a nuclear membrane too. On the contrary, Eukaryotes have a well defined nucleus with a clear nuclear membrane. Also, The being primitive, prokaryotes have one strand of chromosomes while Eukaryotes have many (46). Prokaryotes also lack a lot of cell organalls. The ribosomes in prokaryotes and eukaryotes are 70's and 80's respectively. Also, photosynthetic prokaryotes have membranous vesicles for synthesis food, unlike Eukaryotic Plants that perform it with Chlorophyll.

The deficiency or absence of any environmental factors that can decrease the rate or speed of metabolic reaction is called

Answers

Answer:

is metabolic factor correct?

Answer:

Umm I don’t know but are there options or do you have to type a word?

Explanation:

Select all Density independent limiting factor

Answers

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

All of the following are examples of Ilmiting factors in an ecosystem except:
A.) Water
B.) Food
C.) Population density
D.) Space

Answers

Answer:

C-Population Density

Explanation:

Examine figure 1 below. Which houses the DNA.

Answers

the nucleus houses the DNA

How convenient fingerprinting be used to establish relationships between relatives

Answers

it can show us our history and may help us discover relatives we never new we had or lot contact with.

Pretend your an 8th grader that didn’t look up answers.

PREDICT- What would be ONE result of a loss of groundwater? Justify your answer.

Answers

one result of a loss of ground water would be that the freshwater on earth is 98 percent stored in the ground, therefore we would lose 98 percent of the very little amounts of freshwater we have

What is gained from each part of aerobic respiration?

Answers

Answer:

Cellular respiration uses energy in glucose to make ATP. Aerobic (“oxygen-using”) respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport. ... This results in a net gain of two ATP molecules. Life first evolved in the absence of oxygen, and glycolysis does not require oxygen.

Hope this helps..

Neurons transmit signals to the central nervous system. The brain processes this information to initiate a response. Two neurons communicate with each other through the
. The
is released at the site to initiate action potential and carry the signal through the body.

Answers

Answer: there is no question to what your asking?

Explanation: there is nothing here that is being questioned

How does the CF gene affects the cell membrane?

Answers

Answer:

Normal Function. The CFTR gene provides instructions for making a protein called the cystic fibrosis transmembrane conductance regulator. This protein functions as a channel across the membrane of cells that produce mucus, sweat, saliva, tears, and digestive enzymes.

Explanation:

How does the idea of atoms
explain the principle of conservation of
matter?

Answers

Answer:

Both the initial and final substances are composed of atoms because all matter is composed of atoms.

The sperm and the ovum are called haploid (as they have only 23 chromosomes) which is half the number of chromosomes seen in all the other human body cells. What is the significance behind the maintenance of this special chromosomal number in the male and female gametes?

Answers

Answer:

During the process of meiosis(The process of cell division through which the germ cells such as the reproductive cells are formed), the sex cells produced are haploids (have only 23 chromosomes). This is significant as during the process of fertilization, the nucleus of the sperm (containing 23 chromosomes) and the nucleus of an egg (containing 23 chromosomes too) fuse, hence, retaining the original number of chromosomes in the zygote formed. i.e 46 chromosomes.

Which example shows the levels of organization in a multicellular organism from the smallest level to the largest?
O tissue, cell, organ, organ system, organism
Ocell, tissue, organ, organ system, organism
O cell, organ, organism, organ system, tissue,
oorganism, organ system, organ, tissue, cell

Answers

It would be B because the smallest level is a cell and the biggest would be a organism

Hope this helps

Have a great day/night

The best example that shows the levels of organization in a multicellular organism from the smallest level to the largest is cell, tissue, organ, organ system, organism. Thus, option B is correct.

What is cell theory?

Cell theory is a scientific theory that's help to learn how living organisms are made up of cells, that's they are the basic structure unit of all organisms, and that all cells from pre-existing cells.

Prokaryotic cells are single-celled microorganisms known to be  earliest on earth.Eukaroyotic cell have a nucleus enclosed within the nuclear membrane and form large and complex organism.

Difference between unicellular and multicellular.

The main difference between unicellular organisms and multicellular organisms is that unicellular organism is unspecialised it means all the body function depends upon only on the single cell and in multicellular organism there is specific cells for specific purposes.

Multicellular and unicellular organisms are perform almost all the life running activities and processes such as respiration, reproduction digestion, breathing, and metabolism.

In unicellular organism division of labour is at the organ level on the other hand in multicellular the division of labour at cellular, tissue, organs and organ system level. Unicellular organism has simple body organization and multicellular organism have complex body organism.

Therefore,the best example that shows the levels of organization in a multicellular organism from the smallest level to the largest is cell, tissue, organ, organ system, organism. Thus, option B is correct.

Learn more about cell here:

https://brainly.com/question/3142913

#SPJ2

What is Electron Transport Chain and what happens in that stage of cellular respiration?

Answers

The electron transport chain (ETC) is the final step of cellular respiration and takes place in the mitochondrion.

The final step in cellular respiration is the electron transport chain. This is sometimes abbreviated as ETC. ETC needs oxygen, which means aerobic process. It occurs at the edges of the inner lining of mitochondria. These handles are called cristae.

Can someone give me an explanation of what coevolution is?

Answers

Answer: In biology, coevolution occurs when two or more species reciprocally affect each other's evolution through the process of natural selection. The term sometimes is used for two traits in the same species affecting each other's evolution, as well as gene-culture coevolution.

Explanation:

Sickle cell anemia is carried on the recessive allele. Normal is dominant. Mary is a carrier for sickle cell and Mike is normal (but not a carrier).
A. What are the chances of Mary and Mike having a sickle cell child?
B. What are the chances of them having a child who is a carrier?

Answers

Answer:

A. 0

B. 1/2 or 50%

Explanation:

Let us assume that the sickle cell anemia trait is represented by s and the alternate normal version by S.

Mary, a carrier would have the genotype Ss.

Mike, a perfectly normal person would have the genotype SS.

If both Mary and Mike marry:

                     Ss     x     SS

offspring: SS    SS    Ss    Ss

(A) In order to have sickle cell, the two alleles must be recessive. None of the offspring from the cross has two recessive alleles. Hence, the chances of Mary and Mike having a sickle cell child is zero.

(B) From the cross, two out of four of their potential offspring have the trait in heterozygous condition. Hence, the chances of Mike and Mary having a child who is a carrier is 1/2 or 50%.

You are sitting in a room with a door on your lef
a wall of windows on your right, a desk in front
you, and a bookcase behind you. This statement
uses reference points to describe your
A speed
B
velocity
C position
D
motion

Answers

Answer:position

Explanation:

Answer:

c. position

Explanation:

At night, a land breeze forms because

A) water releases less solar energy during the day; warm ocean air moves into land.
B) land cools more quickly than water; cool land air moves to replace rising warm air over the water
C) land absorbs less solar energy during the day; cool land air moves to replace rising warm air over the water
D) water absorbs more solar energy during the day; cool land air moves to replace rising warm air over the water

Answers

Answer:

B) land cools more quickly than water; cool land air moves to replace rising warm air over the water

Explanation:

During the day, the land surface heats up faster than the water surface. Therefore, the air above the land is warmer than the air above the ocean. ... The bottom of the following image illustrates the land breeze that occurs at night. Recall that the land surface cools quicker than the water surface at night.

7. Which molecule is light energy temporarily stored in before being used to make glucose?

Answers

Answer:

The Calvin cycle uses CO2 and the energy temporarily stored in ATP and NADPH to make the sugar glucose. Photosynthesis is a two stage process. As is depicted here, the energy from sunlight is needed to start photosynthesis. The initial stage is called the light reactions as they occur only in the presence of light

What are the components of a multicellular organism?

Answers

Answer:

Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions. In humans, cells differentiate early in development to become nerve cells, skin cells, muscle cells, blood cells, and other types of cells.

Answer:

Because the first multicellular organisms were simple, soft organisms lacking bone, shell or other hard body parts.

One of the major lessons learned from the efforts to conserve green sea turtles in the Philippines is

Answers

Answer:

''if we protect the nature, the nature will protect ourselves''.

Explanation:

Major lesson that is learned from the efforts to conserve green sea turtles in the Philippines is ''if we protect the nature, the nature will protect ourselves''. green sea turtles are very important for our environment because it provides nutrients in order to grow dune vegetation such as beach grasses, which help to prevent coastal erosion and maintain the structure of dunes present on the beach.

PLEASE HELP ME !! THIS IS A TEST!! PLEASE!!!!
Under normal conditions, gases diffuse through small holes in the leaves of a plant. when the weather hot and dry, plants may close these openings to conserve water. how are the closures most likely to affect photosynthesis?

A.) They increase the rate of photosynthesis by increasing the amount of water in the leaf
B.) They have little or no effect on photosynthesis because gases do not take part in the process.
C.) they increase the rate of photosynthesis by increasing the amount of oxygen in the leaf
D.) they decrease the rate of photosynthesis by preventing carbon dioxide from entering the leaf
PLEASE HELP ME!! PLEASE ANS THANK YOU!!! ​

Answers

Answer:

A) They increase the rate of photosynthesis by increasing the amount of water in the leaf.

During winter's freezing temperatures, some plants can remove water from their cells to reduce the amount of water that will freeze inside them. Why would plants need to do this

Answers

Answer:

The expansion of excess water as it turns to ice inside the cells would break the cells apart

Explanation:

We know that water expands anomalously. It expands between 4- 0°C.

Hence water expands upon freezing. Ice has more volume than liquid water and takes up more space in plant cells.

The expansion of excess water as it turns to ice inside the cells would break the cells apart

Which organelle is found in plant cells only? A.7 B.1 C.3 D.6

Answers

It’s a 7 there’s a cell membrane, cytoplasm, nucleus, vacuole, chloroplasts, Mitochondria, and a cell wall. Good luck !

3. The Seventh Amendment protects
C. the right to bear arms
A. people from cruel and unusual punishment
B. the right to a jury in a civil case
D. people's houses from being searched
without a warrant

Answers

The answer to that is Answer “B”
The answer is B hope this helps
Other Questions
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OA. word processor O B. spreadsheet O C. presentation OD. database O E. multimedia Guess :D First right is brainliest This night is cold in the kingdomI can feel you fade awayFrom the kitchen to the bathroom sink andYour steps keep me awakeDon't cut me down, throw me out, leave me here to wasteI once was a man with dignity and graceNow I'm slippin' through the cracks of your cold embraceSo please, pleaseCould you find a way to let me down slowly?A little sympathy, I hope you can show meIf you wanna go then I'll be so lonelyIf you're leavin', baby, let me down slowlyLet me down, down, let me down, down, let me downLet me down, down, let me down, down, let me downIf you wanna go then I'll be so lonelyIf you're leavin', baby, let me down slowlyCold skin, drag my feet on the tileAs I'm walking down the corridorAnd I know we haven't talked in a whileSo I'm looking for an open doorDon't cut me down, throw me out, leave me here to wasteI once was a man with dignity and graceNow I'm slippin' through the cracks of your cold embraceSo please, pleaseCould you find a way to let me down slowly?A little sympathy, I hope you can show meIf you wanna go then I'll be so lonelyIf you're leavin', baby, let me down slowlyLet me down, down, let me down, down, let me downLet me down, down, let me down, down, let me downIf you wanna go then I'll be so lonelyIf you're leavin', baby, let me down slowlyAnd I can't stop myself from fallin' (down) downAnd I can't stop myself from fallin' (down) downAnd I can't stop myself from fallin' (down) downAnd I can't stop myself from fallin' (down) downCould you find a way to let me down slowly?A little sympathy, I hope you can show meIf you wanna go then I'll be so lonelyIf you're leavin', baby, let me down slowlyLet me down, down, let me down, down, let me downLet me down, down, let me down, down, let me downIf you wanna go then I'll be so lonelyIf you're leavin', baby, let me down slowlyIf you wanna go then I'll be so lonelyIf you're leavin', baby, let me down slowly trapped in a cell that contains 3 doors. 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