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nlexa [21]
3 years ago
15

Which of the following is true of an enzyme? (1 point) A.It catalyzes a series of reactions. B.It breaks down immediately follow

ing the reaction it catalyzes. C. It changes the amount of energy released at the end of a reaction. D. It binds a single set of substrates.
Biology
1 answer:
Elza [17]3 years ago
4 0
It breaks down immediately,
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Conjugated enzymes consist of a protein ______ and a nonprotein _____. Multiple Choice apoenzyme; cofactor substrate; enzyme non
notka56 [123]

Answer:

<h2>Apoenzyme </h2><h2>Cofactors</h2>

Explanation:

Conjugated enzymes also known as holoenzyme. Simple enzymes consist of only protein alone  but  the Conjugated enzymes contain protein ( this portion is called Apoenzyme) and nonprotein molecules (this portion is called cofactor). Cofactor help enzymes in their action.

Enzymes are catalyst which increase the rate of a reaction by decreasing the activation energy.

5 0
3 years ago
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Explain the role of bacteria in the nitrogen cycle
Oksanka [162]

Bacteria is important because this bacteria binds hydrogen molecules with the gaseous nitrogen to form ammonia in the soil.  During assimilation, or when plants take up nitrates from the soil, bacteria aid in the process with the plants in making ammonia. Animal wastes is also a major place where bacteria thrives and produces ammonia. The process in which assimilation occurs in plants, and then bacteria converts the nitrates to ammonia is called ammonification.  From the conversion of ammonia to nitrites, bacteria also aids in this process called nitrification. The nitrifying bacteria mostly present in soils, oxidize ammonia into nitrites, and from nitrites to nitrates.

Finally, the process of denitrification also has bacteria present to aid in converting nitrates back into a gaseous form of nitrogen in the atmosphere.

4 0
3 years ago
Suppose that a certain gene functions to enforce a checkpoint on the cell cycle. A mutation causing the loss of this gene's func
chubhunter [2.5K]

Answer:

The correct answer is C. be more likely to have cancer at some point in his/her life.

Explanation:

Cell cycle checkpoints are controlled by different proteins which are coded by different genes. They are important in cell cycle regulation and stops cell cycle immediately if they find any problem in the cell like mutation.

The cell cycle will not be continued if the problem does not solve and cell death will occur which prevents cancer by preventing the mutation to spread into new cells.  

Therefore if a mutation occurs in certain genes that enforce a checkpoint on the cell cycle then the mutated gene will pass in new cells and the mutated cells will grow uncontrollably due to no checkpoints so the person will probably have cancer at some point in his or her life.

7 0
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Explain how an earlier spring caused by climate warming trends might affect plant life.
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Because the plants are blooming to early and they can freeze
8 0
2 years ago
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If present, the ________________ allele will always be expressed as the phenotype.
k0ka [10]

Answer:

Dominant

Explanation:

The dominant allele will always be shown in the phenotype if it's present, because the other allele would be dominant or recessive. If both alleles are dominant, then the dominant one shows, if one of the alleles is recessive, then the dominant allele would show over the recessive one.

I think of recessive alleles as "weak" where, they just follow behind whichever other allele exists there. If the other one is dominant, then the recessive one is behind it, and no one can see it. If it other allele is recessive, a recessive allele will be in front.

6 0
3 years ago
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