Home
Class 12
BIOLOGY
The nutritive layer of pollen sac/micros...

The nutritive layer of pollen sac/microsporangium is

A

gametangium

B

endothecium

C

tapetum

D

sporangium

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Structure**: The pollen sac, also known as the microsporangium, is a structure found in the anthers of flowering plants. It is responsible for producing pollen grains. 2. **Identifying the Nutritive Layer**: Within the microsporangium, there are different layers. The layer that provides nutrition to the developing pollen grains is known as the tapetum. 3. **Function of the Tapetum**: The tapetum is crucial for the development of pollen grains. It supplies essential nutrients and hormones that are necessary for the growth and maturation of the pollen. 4. **Characteristics of Tapetal Cells**: Tapetal cells are typically larger than other cells in the microsporangium and often contain more than one nucleus. This multinucleate condition can arise due to abnormal mitotic divisions. 5. **Conclusion**: Therefore, the correct answer to the question about the nutritive layer of the pollen sac/microsporangium is the tapetum. **Final Answer**: The nutritive layer of the pollen sac/microsporangium is the **tapetum**. ---
Promotional Banner

Topper's Solved these Questions

  • RESPIRATION IN PLANTS

    TRUEMEN BIOLOGY ENGLISH|Exercise MULTIPLE CHOICE QUESTIONS|190 Videos

  • STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION

    TRUEMEN BIOLOGY ENGLISH|Exercise MCQ|219 Videos

Similar Questions

Explore conceptually related problems

State whether the following statements are true of false regarding androecium . I. The anther of all angiosperms has four theca. II. The outermost layer of the microsporangium is the tepetum. III. The distal end of the filament is attached to the stamen. IV. Pollen grains of the same species differ from each other in their morphologies.

The nutritive layer of microsporangia of Capsella

The innermost wall layer of microsporangium is the __________

The innermost wall layer of microsporangium is called.

Statement -1 : The innermost layer of microsporangium is tapetum. Statement -2 : Glandular tapetum provides nourishment to developing microspores.

The outer layer of pollen is made up of :

Main function of middle layer in microsporangium is

In an angiosperm, microsporangium is

The innermost wall layer of microsporangia which provides nutrition to the developing pollen grain is

What is true of wall of pollen sac