Question

Plants die due to wilting when:

• A. Available light is reduced to half
• B. Xylem is blocked
• C. A few roots are broken
• D. Phloem is blocked

Answer 1

The correct option is B

Xylem is blocked

The correct option is B:

Explanation of the correct option:

1. Plants absorb water from the soil with the help of roots and transport it to all other parts of the plant through the conducting tissue known as the xylem.
2. If the xylem is blocked, then the transport of water is stopped, and thus plants will wilt due to lack of water.

Explanation of the incorrect options:

Option A:

Plants will not wilt if the available light is reduced to half.

Option C:

Plants will not wilt if a few roots are broken because other roots will increase the rate of water absorption to meet up with the needs of the plant.

Option D:

Phloem is the conducting tissue in the plants, which is associated with the process of transport of food.

Final answer: Plants die due to wilting when the xylem is blocked.