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Biology · SEXUAL REPRODUCTION IN FLOWERING PLANTS

हिन्दी

Which of the following statements is INCORRECT regarding the tapetum?

  1. It is the innermost wall layer of the microsporangium.
  2. It nourishes the developing pollen grains.
  3. Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus.
  4. It helps mechanically in the dehiscence of the mature anther.

Correct answer · Option 4

It helps mechanically in the dehiscence of the mature anther.

Explanation

Dehiscence of anther is facilitated by the outer three wall layers (primarily endothecium), not tapetum. Tapetum's primary function is to nourish developing pollen grains.

Related questions

Consider the following statements regarding seeds: Statement I: Albuminous seeds retain a part of the endosperm as it is not completely consumed during embryo development. Statement II: In non-albuminous seeds such as castor and maize, the endosperm is completely consumed during embryo development. In the light of the above statements, choose the correct answer:→Read the following statements about pollination by water: Statement I: Pollination by water is quite common in flowering plants and occurs in over 200 genera of both dicots and monocots. Statement II: The distribution of some bryophytes and pteridophytes is limited because of the requirement of water for transport of male gametes and fertilisation. Choose the correct option:→In the given three-dimensional cut section of an anther, which structure is responsible for the release of pollen grains upon maturity?→In angiosperms, what is the primary biological significance of the delay in zygote division until a certain amount of endosperm has developed?→
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