Multiple Choice Questions

Advertisement

Phytochrome is present in

  • vascular cryptogam

  • prokaryotes

  • flowering plants

  • algae


C.

flowering plants

Phytochrome is a chromoprotein (it is photosensitive, photoreceptor, blue pigment protein complex). It is found in almost all flowering plants (angiosperms).


Advertisement

Which on eof the following is a saprophytic bryophyte?

  • Riccia fluitans

  • Buxbaumia aphylla

  • Funaria hygrometrica

  • Sphagnum


Iodine is obtained from 

  • Laminaria

  • Chlorella

  • Polysiphonia

  • Porphyra


The ability of the venus flytrap to capture insects is due to

  • chemical stimulation by the prey

  • a passive process requiring no special ability on the part of the plant

  • specialized "muscle-like" cells

  • rapid turgor pressure changes


Vessels and companion cells are found in

  • angiosperm

  • pteridophytes

  • bryophytes

  • thallophytes


Advertisement

Which of the following is not the feature of gymnosperms?

  • parallel venation

  • perennial plants

  • distinct branches (long and short branches)

  • xylem with vessels


Agar- agar is obtained from

  • Chlorella

  • Spirogyra

  • Ulothrix

  • Gelidium


Which of the following is/ are grouped under phanerogams?

  • Angiosperms

  • Gymnosperms

  • Pteridophytes

  • Both (a) and (b)


Male gamete in angiosperm is produced by

  • generative cell

  • microspore cell

  • vegetative cell

  • tube cell


Advertisement
<

Calyptra is derived from

  • archaegonia

  • capsule

  • antheridia

  • columella


Advertisement