Question

Study of pollen grains is called as
A. Etymology
B. Palynology
C. Paleobotany
D. Omega taxonomy

Answer 1

Pollen grains are the male gametophyte which is produced in gymnosperms and angiosperms. Pollen grains are unicellular, haploid microspores with an exterior wall called sporoderm which contains two layers.

Complete answer:
Pollen grains are a small powder-like substance that has a male reproductive unit of the plant. These are spherical structures 25-30 micrometers in diameter. The outer wall is sporoderm which contains an exine and intine layer.
Exine: is the rigid exterior layer composed of sporopollenin (resistant organic matter). It acts as a protective layer as it shelters the pollen from high temperatures, strong acid, etc.
Intine: is the interior layer composed of cellulose and pectin. Formation of Pollen grains In anther, there are undifferentiated cells present, when the flower starts maturing some of its cells differentiate into the sporogenous cell and the fertile cells undergo meiotic division and produce microspores, one diploid sporogenous cells divide and form 4 microspores which are haploid and these microspores take proper nutrition and convert into pollen grains and the process is known as microsporogenesis. Etymology is the study of the history of words. Paleobotany is the study of the vegetation of geological ancient and past and fossil plants. It is one of the branches of botany which helps in studying the relationship of plants with each other. Omega Taxonomy: It is part of taxonomy related to the information of a plant. Palynology is the study of a small powder like substance called a pollen grain. The pollen grain is of different sizes, shapes, and characteristics. Palynology helps in different studies like forensics, Paleontology, etc.

Hence, the correct answer is option (B).

Note: Pollen grains can cause allergies and bronchial afflictions which may lead to asthma and bronchitis. These allergies can be treated by antihistamines. Pollen grains maximize the performance of athletes if they contain good nutrients.