Question

Tapetum is found in

• A. anther
• B. androecium
• C. ovary
• D. ovule

Answer 1

The Correct Option is A

Tapetum is the innermost layer of a developing anther. The tapetal nudei may divide once or more and sometimes these divisions are accompanied by nudear fusions resulting in large polyploid nudei which may divide again. The tapetal layer is of great physiological significance since all the food material entering into the sporogenous tissue diffuse through this layer. At maturity these cells degenerate and provide nourishment to developing microspores or pollens inside.

Answer 2

The specialized nutritive tissue known as tapetum may be discovered in another blooming plant. As it gives the pollen grains' growing pollen grains sustenance, it is a crucial component of the pollen grain.
Tapetum comes in two primary varieties: secretory tapetum and plasmodial tapetum.
Secretory tapetum: first - A glandular tapetum is another name for a secretory tapetum. The tapetum's cells disintegrate after developing walls, yet its cells have cytoplasm. Pro-orbicular secretion is the primary function of the secretory tapetum. The sporopollenin is applied to the preorbitals. This contributes to the development of the pollen's exine, or outer coating. Acorales, a monocot, contains it.
Platyhelminthic tapetum: Amoeboid tapetum is another name for them. The tapetum cell wall diffuses and dissolves in some varieties, making it impossible to concentrate them in later stages of growth. A multinucleate plasmodium is when the protoplast in the plasmodial tapetum faces. The most typical kind of tapetum is this one. The twisted Dade is where it is mostly found. Angiosperms have the plasmodial form of the tapetum. The tapetal peri-plasmodium is created when the tapetal cells assemble. The medical division in the locule then produces additional protoplast from fused tapetal cells. The primary hosts of Plasmodium tapetum include Typhe, Alisme, Butomus, etc.