Question

all of the following proteins are absent in plasma membrane except
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Answer 1

Answer:

The cell membrane is a biological membrane composed of two layers of phospholipids and embedded with proteins. Phospholipid layer provides fluidity and not rigidity. The membrane protein helps in the transportation of molecules from and to the cell. It is a thin semi-permeable membrane layer, which allows the entry of non polar compounds, water, gases. The layer is impermeable to large polar compounds.

Thus, the correct answer is option 'Rigidity'.