Question

Which of the following separates cytoplasm from external environment?
A) Cell membrane
B) Plasma membrane
C) Selectively permeable membrane
D) All of these​

Answer 1

Explanation:

A) Cell membrane

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Answer 2

Answer:

As per the discussion below, we come to know that a cell membrane is also known as a plasma membrane and it is a kind of selectively permeable membrane in nature.

Thus, all the options are correct in this aspect.

Explanation:

The cell membrane:

• The cell membrane also known as the plasma membrane separates the insides of the cell, i.e., the cytoplasm from the extracellular surrounding environment.
• This cell membrane is present in all cells.
• The cell membrane is involved in a variety of functions like:
  1. Allowing selective molecules to pass into and outside the cell (acts as a selectively permeable membrane).
  2. Takes part in various processes like endocytosis and exocytosis.
  3. Has membrane-bound receptors which play a vital role in signal transduction mechanisms and cellular communication.
• The plant cells have an additional cellular covering known as the cell wall, which is absent in animal cells.

You can learn more about cell membranes by referring to the following links:

https://brainly.in/question/51781816

https://brainly.in/question/3775487

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