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Morphology Of Flowering Plants

Question
CBSEENBI11002181
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Male gametophyte with least number of cell is present in

  • Pteris

  • Funaria

  • Lillium

  • Pinus

Solution

C.

Lillium

Lilium (angiosperm) possesses the male gametophyte with least number of cells. The number of cells in male gametophyte shows the pattern of reduction from bryophytes to angiosperms. In angiosperms, it is reduced to about 2-3 celled and called as pollen grains. 
Pollen grains are produced by meiosis of microspore mother cells that are located along the inner edge of the anther sacs (microsporangia).
The number of cells in male gametophyte decreases in the following order.
Funaira > Pteris > Pinus > Lilium

Some More Questions From Morphology of Flowering Plants Chapter

Justify the following statements on the basis of external features:
(i) Underground parts of a plant are not always roots.
(ii) Flower is a modified shoot.

How is a pinnately compound leaf different from a palmately compound leaf?

Explain with suitable examples the different types of phyllotaxy.

Define the following terms:

(a) aestivation

Define the following terms:

(c) placentation

Define the following terms:

(c) actinomorphic

Define the following terms:

(d) zygomorphic

Define the following terms:
(e) superior ovary

Define the following terms:
perigynous flower

Define the following terms:
epipetalous stamen

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