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IrinaVladis [17]
3 years ago
5

Proteins are used for many structural functions such as in the actin and myosin in muscle or as a part of the cytoskeleton scaff

olding that maintains cell shape. What other main function do proteins serve?
A.
as enzymes to control the rate of reactions and regulate cellular activity
B.
as waterproof membranes to regulate the transport of molecules in and out of the cell
C.
as coding for genotypic expression and phenotypic traits
D.
as cellulose to form the major structural component of plant cell walls
Biology
2 answers:
Nitella [24]3 years ago
5 0

Answer:

A

Explanation:

Proteins are large biomolecules produced in living cells. They are polymers made up of monomeric units called amino acids. Asides being structural components as highlighted in the question, complex proteins produced in living cells also serves as biological catalysts that regulates biochemical reactions in the body of living organisms. The protein that perform this function of regulating reactions is called ENZYME.

Catalytic enzymes affects the rate of biochemical reactions, without them, reactions will occur slowly or not at all. Enzymes, which can be anabolic or catabolic depending on whether they catalyze building up or breaking down of complex molecules respectively, are usually specific about what (substrates) they act on.

The amino acids that make up specific enzymes are modified into a three-dimensional shape. This shape determines its function and confers upon it the ability to speed up a reaction. An enzyme gets its name from the type of reaction they catalyze e.g. cellulose synthase catalyzes the synthesis of cellulose from glucose.

polet [3.4K]3 years ago
4 0

Answer: (A) as enzymes to control the rate of reactions and regulate cellular activity.

Explanation: Proteins - control rate of reactions and regulate cell processes, form important <u>cellular structures and transport substances into/out of cells or fight disease.</u>

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julia-pushkina [17]
Four new haploid cells are formed once the sister chromatids within the two daughter cells separate, forming four new haploid gametes.
8 0
3 years ago
Preparing the body for the "fight-or-flight" response is the role of the ________.
den301095 [7]

Answer:

The correct answer is a. sympathetic nervous system.

Explanation:

The sympathetic nervous system involves the rapid involuntary response called fight and flight response during stress conditions. In a stressful condition, our body parts give signals to the hypothalamus which stimulates the sympathetic nervous system of the body.  

The activated sympathetic nervous system then stimulates the release of a hormone called adrenalin and nor-epinephrine from the adrenal gland. These stress hormone together with neural activity give rise to fight and flight response.  

During this response our mind becomes alter, breathing becomes deep, heart rate becomes high, pupil diabetes, and excess sweating occurs. Therefore the correct answer is a.

6 0
3 years ago
Can you answer these please:)
Temka [501]

Answer:

11=gravity

12= The earth would move in a straight line infinitely

Explanation:

I dont know first one I think its false though

3 0
3 years ago
High-fructose corn syrup is produced by converting starch from corn into a mixture of glucose and fructose monosaccharides. what
NeTakaya

Answer:

The correct answer would be digestion and isomerization.

Starch is a polysaccharide formed by a number of glucose units.

The glucose units are attached with the help of glycosidic bonds.

In the digestion process, the polysaccharide is converted into simple glucose units with the help of different types of amylase enzymes such as alpha-amylase, glucoamylase.

In isomerization, some of the glucose units (40-50 percent) are isomerized to fructose with the help of glucose isomerase enzyme.

5 0
3 years ago
Read 2 more answers
"Which statement concerning the oxygen level in the lake can be inferred from the graphs?
KatRina [158]
After seeing a graph represented below, I have recognized the correct answer, and I think that the statement concerning the oxygen level in the lake which can be inferred from the graphs is being revealed by the option 1 -<span>Trout and whitefish require higher oxygen levels than do carp. As you can see the oxygen line on the graph shows that carp does not require as much oxygen as whitefish does require, as level is increasing on the left side.
Hope you will find it helpful!
Regards.</span>
8 0
4 years ago
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