Question

In Fabaceae, one of the following immediately encloses the essential organs

• A. Posterior petals
• B. Lateral petals
• C. Anterior petals
• D. Sepals

Answer 1

The correct option is A

Posterior petals

The correct option is A.

Explanation for the correct option:

1. In the Fabaceae family vexillary aestivation is found.
2. Vexillary aestivation is the arrangement of petals where the smaller petals are covered by one large petal.
3. Vexillum is the larger petal, while the two curved petals which are laterally positioned are called wings.
4. Keels are the two inmost boat-shaped petals.

Explanation for the incorrect options:

Option B:

Lateral petal is called wings and these are covered by posterior petals so these petals enclose the boat-shaped petals.

Option C:

Anterior petals are called boat-shaped petals or keels these are the smallest petals and are present in most of the petals.

Option D:

Sepals are the smallest and leaf-shaped they protect the buds and help the petals when it blooms.

Final answer: In Fabaceae, posterior petals immediately enclose the essential organs.