Question

Cell wall of which one of these is not made up of cellulose?

• A. Bacteria
• B. Hydrilla
• C. Mango tree
• D. Cactus

Answer 1

The correct option is A

Bacteria

The correct option is A.
Explanation of the correct option:

1. The cell wall inhibits water loss from the plant's body.
2. Bacteria exhibits a cell wall around its cell membrane.
3. Peptidoglycan makes up the bacterial cell wall.

Explanation of the incorrect options:
Option B:

1. A genus of water plants called Hydrilla is typically thought to only have one species.
2. Plants, hydrilla, mango trees, and cacti all have cellulose in their cell walls.

Option C:

1. Hydrilla, mango trees and cacti all have cellulose in their cell walls.
2. Lignin makes up the majority of the wood in the trunk and branches of almost all trees, including mango trees.

Option D:

1. A perennial plant is a cactus.
2. Hydrilla, mango trees and cacti all have cellulose in their cell walls.
3. All cacti have inner cortical cell walls that are particularly thin and flexible, but many cacti also have an additional modification where the walls fold or undulate even when they are young and have just been formed by the shoot apical meristem.

Final answer: Cell wall of bacteria is not made up of cellulose.