What is the importance of cell wall? Choose 2 correct options.
Answers
The main function of the cell wall is to provide structural strength and support, and also provide a semi-permeable surface for molecules to pasś in and out of the cell.
Answer:
a) Cell wall is essential in plant cells.
This statement is correct.
b) Nucleus controls cell activity.
This statement is correct.
c) Unicellular organisms perform all life processes like respiration, excretion, growth, and reproduction.
This statement is correct.
d) To observe nucleus and organelles clearly, staining is not necessary.
This statement is incorrect.
The correct statement is
d) To observe nucleus and organelles clearly, staining is necessary.
Explanation:
The cell wall is a protective outer covering of the cell. It is mostly present in plant cells. It suppomayrts the contents of the cell and protects from pathogen attack and wear and tear.
It prevents water loss from plant cells. It gives shape to the plant. It is made up of cellulose, lignin.
Therefore, option D is correct.
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