Consider the following statements and choose the ones that represent tapetum
I. It is the single, innermost layer
II. It provides nutrition to the pollen grains
III. It helps in the dispersal of microspores.
IV. It stores reserve food during early stages of microspore development.

I, II and III

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III and IV

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I and III

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IV and II

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Solution

The correct option is D IV and II
In a transverse section, a typical microsporangium appears near circular in outline. It is generally surrounded by four wall layers - the epidermis, endothecium, middle layers, and the tapetum. The outer three wall layers perform the function of protection and help in dehiscence of anther release to release pollen. It nourishes the developing pollen grains. Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus. The tapetum becomes multilayered during the microsporogenesis.
Hence, the correct answer is 'IV and II'

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Similar questions

Consider the following statements (I-IV) regarding follicular fluid and select the option stating which ones are true (T) and false (F).

I. It provides nourishment for oocyte development.

II. It has a significant role in sperm development and fertilisation

III. It is a fluid present in the uterus.

IV. Follicular fluid is enriched with biomolecules.

Sporogenous tissue → (i) →Microspore mother cells → (ii) → Microspore tetrads
Identify (i) and (ii) in the above sequence.

Q. Based on the given excerpt, answer the given question.

Stamen is regarded as a microsporophyll that possesses microsporangia which have microspore mother cells that give rise to microspores. The cells of sporogenous tissues undergo meiotic division to form microspore tetrad. Microspore is present in the bilobed structure called anther. A male gametophyte is a gamete producing haploid phase in a plant. In angiosperms, it is the pollen grains that are regarded as gametophytes.

Endothecium is responsible for ______________ of pollen grains.

i) nutrition
ii) protection
iii) dehiscence
[1 mark]

Find one word for the following statements and choose the correct option
(I) Residual, persistent nucellus in seed-A
(II) Microspores arranged in a cluster of four cells-B
(III) Special cellular thickening at the micropylar end of embryo sac-C
(IV) Development of seeds without fertilization-D

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Consider the following statements and choose the ones that represent tapetumI. It is the single, innermost layerII. It provides nutrition to the pollen grainsIII. It helps in the dispersal of microspores.IV. It stores reserve food during early stages of microspore development.

Consider the following statements and choose the ones that represent tapetum
I. It is the single, innermost layer
II. It provides nutrition to the pollen grains
III. It helps in the dispersal of microspores.
IV. It stores reserve food during early stages of microspore development.