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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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tekilochka [14]

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A. FERNS

Explanation:

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3 years ago
Evolution can be guided by random processes. What is the effect called when some genotypes are lost in a small population over t
soldi70 [24.7K]

Answer:

Genetic drift

Explanation:

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5 0
3 years ago
What term is used to describe organisms composed of identical and unspecialized cells?
Sedaia [141]

Answer:

Embryo cell or totipotent cell

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5 0
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How is dna the basic of life?
Allushta [10]


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For example DNA provides information to make  four polypeptide (two beta and two alpha ) chains  which make up hemoglobin, the protein that functions as the oxygen carrier in red blood cells. In summary,

DNA → protein →  trait, and that relationship is the physical basis of life.


6 0
3 years ago
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