- Home
- Standard 12
- Biology
1.Sexual Reproduction in Flowering Plants
medium
Identify $A$ to $D$ in the following diagram
A
$A-Filament, \;B-Pollen sac, \;C-Pollen grain, \;D-Line of dehiscence$
B
$A-Filament, \;B-Pollen sac, \;C-Line of dehiscence, \;D-Pollen grain$
C
$A-Filament, \;B- Line of dehiscence, \;C-Pollen sac, \;D-Pollen grains$
D
$A-Filament,\; B- Line of dehiscence, \;C- Pollen sac, \;D-Pollen grains$
Solution
$(i)$ A typical angiospermic anther is a bilobed structures having two theca at each lobe $(ii)$ It is tetragonal in shape with $4$ microsporangia located at each lobe in its corners $(iii)$ Microsporangia develop into pollen sac, which produces pollen
Standard 12
Biology
