Question

Ubisch bodies are present in
(a) Pollen tube
(b) Pollen grain
(c) Microspore
(d) Tapetum

Answer 1

Hint: Ubisch bodies are present in cells and our small is a cellular structure that is present in sporopollenin. They help in the formation of the microspore wall or the exine of the pollen grain.

Complete answer:
Ubisch bodies are present in the tapetum which is the innermost layer around the sporogenous tissue of the anther wall. The tapetum is a nutritive layer of cells that is found within the anther and is important for the development of pollen grains and the precursors of pollen coat. The cells nuclei of the tapetal cells also start dividing. The cells of mature tapetum become multinucleated when the mitosis is not normal and polyploidy and polyteny can take place. The tapetum is of two types which include the secretory and plasmodial in which the secretory remains around the anther locules and the plasmodial type dissolve with their protoplast that fuse to form a multinucleate plasmodium. The dehydration of the anther happens at maturity which leads to the dehiscence of the anther that releases the pollen grains.
1. Pollen tube: Pollen tube is produced by the male gametophyte and is a tubular structure that is an elongation in the integral stage of the plant life cycle. It is used for understanding the plant cell behavior and responding to the extracellular guidance signals which achieve fertilization. The formation of the pollen tube is complex and it is important for the process of sexual reproduction in seed plants.
2. Pollen grain: Pollen grains are a powdery substance which is the male gametophyte of seed plant and have a hard court made up of sporopollenin which protects them during their movement. an individual Pollen grain cannot be seen with the naked eye and need magnification to see in detail. They are used for transferring haploid male genetic material from the anther of a flower to the stigma of another flower during the process of cross-pollination and during self-pollination, they take it from the answer of a flower to the stigma of the same flower.
3. Microspore: Microspore is the plant spore that gets developed into the male gametophyte fertilization of an egg cell for the formation of a zygote. It constitutes three layers which include the perispore which is the outer layer and the exospore which is the next layer and the innermost layer which is the endospore. Among the three layers, the perispore is the thickest layer and the other two layers are equal in width.

So, the correct answer is 'Tapetum'.

Note:
Pollen grains are of many colors and some of them cause allergies which is the hypersensitivity to the Pollen. Plants use some tricks to spread pollen and the plant pollinators can be large or small.