Tag: botany
Questions Related to botany
Ubisch bodies are connected with the formation of
Germ pore is the area where exine is
Pollen grains are nongreen due to
Wheat root cells have $42$ chromosomes. The number of chromosomes in a cell of pollen grain is?
Which is correct?
Sporopollenin is formed by the polymerization of
Which of the following statements about sporopollenin is wrong?
Which plant product is the hardest?
Identify the pair of wrong statements.
I. Intine of pollen grains is made up of sporopollenin.
II. Pollen grains are well preserved as fossils because of the presence of sporopollenin.
III. Enzymes can degrade the organic material of the pollen grain exine.
IV. Sporopollenin can withstand high temperature, strong acids and alkali.
Select the correct and incorrect statements.
(a) Tapetum nourishes developing pollen grains.
(b) Hilum represents junction between ovule and funicle.
(c) In aquatic plants, Water Hyacinth and Water Lily, pollination is by water.
(d) Primary endosperm nucleus is triploid.