Question

A destarched plant is one whose:

• A. Leaves are free from chlorophyll
• B. Aerial parts are free from starch
• C. Leaves are free from starch
• D. Plant is free from starch

Answer 1

The correct option is C

Leaves are free from starch

The correct option is C.

Explanation for the correct option

1. Photosynthesis is the process of synthesizing glucose by using carbon dioxide and water as the raw materials in the presence of sunlight.
2. Glucose molecules in leaves are polymerized to form starch.
3. If the plant leaves are made free from starch, the plant will be termed a destarched plant.

Explanation for the incorrect options

Option A:

1. Chlorophyll is the green pigment present in the leaves.
2. It is responsible for the absorption of sunlight and the photolysis of water molecules.
3. The plant will not be able to perform photosynthesis if chlorophyll is removed from the leaves.

Option B:

1. Aerial parts of plants are those that are above the ground. For example, stems, leaves, and fruits.
2. Not all aerial parts contain starch thus, the option is not correct.

Option D:

1. The plant comprises aerial and underground parts.
2. Parts other than leaves are devoid of starch; thus the option is not correct.

A destarched plant is one whose leaves are free from starch.