1. Tardigrade
  2. Question
  3. Biology
  4. Find the appropriate option which justifies all these statements. i. Protect the cell by acting as a barrier. ii. Regulates the transport of substances in and out of the cell. iii. Receives chemical messengers from other cells. iv. Acts as a receptor. v. Cell mobility, secretions, and absorptions of substances.

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Q. Find the appropriate option which justifies all these statements.
i. Protect the cell by acting as a barrier.
ii. Regulates the transport of substances in and out of the cell.
iii. Receives chemical messengers from other cells.
iv. Acts as a receptor.
v. Cell mobility, secretions, and absorptions of substances.

NTA AbhyasNTA Abhyas 2020Cell : The Unit of Life

Solution:

The plasma membrane has lipid molecules consisting of a hydrophilic head and a hydrophobic tail made up of saturated and unsaturated fatty acid which provides quasi fluid nature to lipid. The membrane protects the cell by acting as a barrier and regulates the transport of substances in and out of the cell. For many of the chemical messengers from other cells these acts as a receptor and mediates the cell mobility, secretions, and absorptions of substances.