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Serggg [28]
3 years ago
7

(a) Describe the biological need for cells to be surrounded by a membrane that is selectively permeable for different materials

Biology
1 answer:
seropon [69]3 years ago
6 0

Answer:

The selectively permeable membrane is important because it will allow only those materials and ions to pass which are required by a cell. The selectively permeable cell membrane is important to maintain the homeostatic conditions for a cell. It actively maintains the internal cell environment.

If cell membrane was not permeable then toxic molecules and ions as well as waste elements would enter the cell destroying the cell. An increase in the amount of ions in the cell might have caused the cell to burst.

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3 years ago
In addition to mutations, genetic variation can also arise during the formation of gametes during meiosis. During meiosis I, hom
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Answer:

Crossing over ensures that organisms of the same parents have differences in genetic content making them unique in one way or the other.

Explanation:

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5 0
2 years ago
Which process does not occur in the Krebs cycle?
nikdorinn [45]

Answer:

The correct answer is b glucose is broken down into two pyruvate molecules.

Explanation:

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Explanation:

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