Sexual Reproduction in Flowering Plants -- 1

Find odd one out.

• Stamen

• Stigma

• Style

• Ovary

The terminal structure of stamen is called

• pollen

• filament

• anther

• All of these

The lengthwise running groove on anther which separate theca is called

• rupture line

• line of dehiscence

• suture of anther

• None of the above

Number of microsporangia in an angiospermic anther is

• 1

• 2

• 3

• 4

Microsporangium develops into

• pollens

• microgametes

• megagametes

• pollen sac

The innermost layer of microsporangium is

• tapetum

• endothecium

• middle layer

• epidermis

Centre of each microsporangium is occupied by

• sporogenous tissue

• tapetum

• central tissue

• microspore mother cell

The outermost wall layer of microsporangium in anther is

• endothecium

• tapetum

• middle layer

• epidermis

Which of the following perform microsporogenesis?

• Microspore mother cell

• Pollen mother cell

• Both (a) and (b)

• None of these

Tags

NGSS.HS-LS3-2

The process of formation of microspores from pollen mother cell through … A… is called … B... . Microspores are arranged in … C … . As the anthers matures and dehydrate, microspores develop into the …D… . Fill in the blanks A to D.

• A–pollen grains, B–microspore tetrad, C–microsporogenesis, D–meiosis

• A–microspore tetrad, B–microsporogenesis, C–meiosis, D–pollen grains

• A–microsporogenesis, B–microspore tetrad, C–pollen grain, D–meiosis

• A–meiosis, B–microsporogenesis, C–microspore tetrad, D–pollen grains

Tags

NGSS.HS-LS3-2