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Ahat [919]
3 years ago
11

Which term is used for the group of proteins that are catalysts for metabolic reactions?

Biology
2 answers:
Semenov [28]3 years ago
5 0
The answer is D) enzymes.
“Enzymes are protein catalysts. A specific region of an enzyme where a substrate binds and catalysis takes place.”
Kisachek [45]3 years ago
3 0

Answer:

The correct answer is option D.) enzymes.

Explanation:

Hello!

Let's solve this!

Catalysts are molecules that have the quality of accelerating reactions.

Let's analyze each of the options:

A.) carbohydrates: they are not molecules that accelerate reactions.

B.) vitamins: they are nutrients, they do not accelerate reactions.

C.) nucleic acids: do not accelerate reactions.

D.) enzymes: they are proteins that accelerate reactions, they are called biological catalysts.

After the analysis we conclude that the correct answer is option D.) enzymes.

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What are the function of chloragogen<br> Cell in earthworm
Nikolay [14]

Explanation:

The cells store glycogen and neutralize toxins and are present in coelomic fluid of some annelids. They are yellowish in colour due to the presence of yellow granules called chloragosomes.

These cells are derived from the inner coelomic epithelium, and help in excretory functions, as most commonly demonstrated in earthworms.

5 0
3 years ago
I NEED HELP PLEASE!!!!!!!!!!!!!!!
velikii [3]

Answer: the ear drum

cochlea

Explanation:

bc They send the sound waves to the inner ear and into the fluid-filled hearing organ (cochlea).

6 0
2 years ago
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Non-living things, such as a car, often show characteristics similar to those of living organisms.
Alex

Answer:

Living and car both move, both release energy, both needs energy to move and both gets damages in accidents.

6 0
2 years ago
What are histones, and how are they arranged in nucleosomes? Drag the terms on the left to the appropriate blanks on the right t
Eva8 [605]

Answer:

1) c. five

2) a. lysine and arginine

3) g. two

4) d. four

Explanation:

A nucleotide can be defined as an organic molecule which forms the building block of nucleic acid such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).

Basically, nucleotide comprises of the following parts;

1. Nitrogenous base: this includes adenine (A), thymine (T), guanine (G), and cytosine (C) which are mainly found in the DNA while adenine (A), guanine (G), uracil (U) and cytosine (C) are found in the RNA.

2. A phosphate group.

3. A penrose sugar: it is either deoxyribose in DNA or ribose in RNA.

The two parts or chemical components of a nucleotide which do not change throughout the structure of DNA are;

I. Five-Carbon Sugar also known as deoxyribose and it has hydrogen on its second carbon.

II. Phosphate: this is the structural backbone that provides support to DNA.

Histones are a group of highly basic proteins that are mainly associated with deoxyribonucleic acid (DNA) in the nucleus of a living organism and then condense it to chromatin.

Histones include five main classes of relatively small basic proteins containing relatively large amounts of lysine and arginine. Nucleosomes are made of two each of four types of histones.

4 0
3 years ago
Why are molecular clocks important in the construction of cladograms? They compare the frequency of reproduction to determine wh
Dmitrij [34]

Answer: They compare the number of mutations to determine how long ago species separated and evolved.

You're welcome!

7 0
3 years ago
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