Question

How are the gametophytes of vascular plants in comparison with the gametophytes of the bryophytes?

• A. Smaller but have larger sex organs
• B. Smaller and have smaller sex organs
• C. Larger and have larger sex organs
• D. Larger but have smaller sex organs

Answer 1

The correct option is B

Smaller and have smaller sex organs

The correct option is B.

Explanation of the correct option:

1. The plant kingdom consists of nonvascular and vascular plants.
2. Living groups of nonvascular plants include the bryophytes such as liverworts, hornworts, and mosses.
3. Examples of vascular plants are pines, ferns, corn, and oaks.
4. The comparison between the gametophytes of vascular and nonvascular plants is found that the gametophytes of the vascular plants are not only smaller but also bear smaller sex organs.
5. The dominant phase of the life cycle in Bryophytes is the gametophytic plant body, unlike the vascular plants which have a sporophytic plant body for most of their life cycle. The reduced smaller gametophytes have smaller sex organs.

Explanation of the incorrect option:

Option A:

Gametophytes are smaller but they do not have large sex organs.

Option C:

1. The gametophyte is a stage in the life cycle that is found in all plants.
2. They are neither large in shape nor the sex organs large.

Option D:

They are smaller in shape as compared to bryophytes and also have small sex organs.

Final answer: The gametophytes of vascular plants is different from the gametophytes of the bryophytes as they are smaller and have smaller sex organs.