Question

The anther contains
(a) Sepals
(b) Ovules
(c) Carpels
(d) Pollen grains

Answer 1

Hint: These are male reproductive cells of seed-bearing plants transported by wind, water, insects, etc. These are present in the anther and burst open when mature to participate in pollination.

Complete answer:
Flowers are the reproductive part of a plant. It contains both male and female reproductive parts. Pollen grains are male reproductive cells present on anther. Pollen is a powdery substance consisting of pollen grains which are male microgametophytes of seed plants, which produce male gametes. Pollen grains are minute bodies of various shapes and structures.

Additional Information:
- Pollen grains consist of three distinct parts. The central cytoplasmic part is the source of nuclei responsible for fertilization. The other parts constituting the wall of the grain are an inner layer, the intine, and an outer layer, the exine.
-The stamen are male reproductive organs of a flower. It has two parts: anther and stalk or filament.
- Anther produces pollen grains, which are microscopic structures. The opening of another causes the release of pollen, which are then carried by winds or insects or birds to different plants for pollination.
-The male reproductive part is collectively termed as androecium.

So, the correct answer is,’ pollen grains’.

Note: -The size of pollen grains ranges from 15 to 200 μm. The plant known to have the longest pollen grain till now is Zostera, with pollen grains up to 2500 µm long.
-Petal is modified leaves that surround the reproductive parts of flowers. They are bright in color and shaped accordingly to attract the pollinators.
-Nasal allergy caused by pollen is known as pollinosis. Generally, allergy-causing pollen belongs to anemophilous plants.
-Pollen of grass causes hay fever. It is also responsible for asthma in some people.