What argument would you give for the necessity of a cell wall in plants. Class 9

What argument would you give for the necessity of a cell wall in plants. Class 9

Pause and Ponder (Page 14)

Question 1.

What argument would you give for the necessity of a cell wall in plants usually fixed in one place versus in animals usually moving from one place to the other? Class 9

Answer:

Plants require a cell wall for rigidity, protection, and maintaining shape because they cannot move. Animals need flexibility for movement, so they do not have a cell wall.

Question 2.

What consequences would you predict for a plant cell if its cell wall were to become as flexible as a cell membrane? Class 9

Answer:

Without a cell wall, plant cells would lose their shape, become weak, and could burst due to osmotic pressure.

Question 3.

Why is it important to cut the two potato pieces in roughly equal size and measure their initial weight before placing them in different liquids? Class 9

Answer:

To ensure that the results of the experiment are accurate and not affected by differences in size.