Question

Match the following items in column-I with column-II and choose the correct answer:

	Column-I		Column-II
P.	Plasma membrane mainly contains	i.	Hemicellulose
Q.	Middle lamella mainly composed of	ii.	Calcium pectate
		iii.	Proteinaceous filments
		iv.	Proteins embedded in phospholipid bailayer

• A. P-ii, Q-i
• B. P-i, Q-ii
• C. P-iv, Q-ii
• D. P-iii, Q-iv

Answer 1

Answer: (C)

P-iv, Q-ii

Plant cells are surrounded by a rigid cell wall. When water gains entry into the cell through the process of endosmosis, the protoplasm swells and increase in volume. The protoplasm exerts pressure on the wall. This pressure is called as turgor pressure.

Thus, the correct answer is option A.