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Vsevolod [243]
2 years ago
12

Why do sperm cells contain so many mitochondria?

Biology
1 answer:
sp2606 [1]2 years ago
8 0
<span>a. Each mitochondria is needed to store a full copy of the male’s chromosomes</span>
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In a paragraph explain what effect very small pores and their diffusion rate would have on the workings and mechanism of a cell
Murrr4er [49]

Answer:

So if the size of the pore is small then the rate of the diffusion will be very slow as the molecules will move from high concentration to low concentration in very slow rate.

Explanation:

I hope it helps you

6 0
2 years ago
Why is it important to have extra membrane space? What occurs here?
Blababa [14]

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The inner or cytoplasmic membrane, impermeable to polar molecules, regulates the passage of nutrients, metabolites, macromolecules, and information in and out of the cytoplasm and maintains the proton motive force required for energy storage.

Explanation:

5 0
2 years ago
1. Normal cells and cancer cells differ in several
Trava [24]

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Explanation:

4 0
3 years ago
Which of the following mutations could lead to constitutive expression of the genes of the lac operon? View Available Hint(s) Wh
Molodets [167]

Options for part A are as follows:

A) A mutation in the operator sequence

B) A mutation in the lac-Z gene

C) A mutation in the lac-Y gene

D) A super repressor mutation

Answer:

The correct answer:

Part a - A mutation in the operator sequence

Part b - It ensures that a cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part C. true.

Explanation:

part a:

If there is a mutation in the operator sequence leads to prevent binding of the repressor which leads to allowing constitutive expression of the genes various conditions.

part b:

The biological role of the lac operon makes sure that the cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part c:

RNA polymerase cannot transcribe the structural genes due to the repressor binds to the lac operator, therefore, the proper function of the lac operon is possible when the placement of the operator sequence between the promotor and the structural genes.

4 0
2 years ago
Human cells obtain energy from a reaction called cellular respiration. balance the skeletal equation for cellular respiration. c
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5 0
3 years ago
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