MEDIUM
12th CBSE
IMPORTANT
Earn 100

Gynoecium of a flower may be apocarpous or syncarpous. Explain with the help of an example each.

Important Questions on Sexual Reproduction in Flowering Plants

HARD
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 2 - Sexual Reproduction in Flowering Plants>TEST QUESTIONS>Q 17
Out of many papaya plants growing in your garden only a few bear fruits. Give reason
HARD
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 2 - Sexual Reproduction in Flowering Plants>TEST QUESTIONS>Q 18
A mature embryo sac in a flowering plant may possess 7- cells but 8- nuclei. Explain with diagram
MEDIUM
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 2 - Sexual Reproduction in Flowering Plants>TEST QUESTIONS>Q 19
Mention the ploidy of the different types of cells present in the female gametophytes of angiosperms.
MEDIUM
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 2 - Sexual Reproduction in Flowering Plants>TEST QUESTIONS>Q 20
A pollen grain in angiosperms at the time of dehiscence from an anther could be 2 celled or 3 celled. Explain. How are the cells placed within the pollen grains when died at a 2- celled stage?
HARD
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 2 - Sexual Reproduction in Flowering Plants>TEST QUESTIONS>Q 21
“ Pollen grain in wheat are shed at 3- celled stage while in pea they are shed at 2- celled stage”. Explain. Where are germ pores present in a pollen grain?
MEDIUM
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 2 - Sexual Reproduction in Flowering Plants>TEST QUESTIONS>Q 22
How many cells are present in the pollen grain at the time of their release from anther? Name the cells.
MEDIUM
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 2 - Sexual Reproduction in Flowering Plants>TEST QUESTIONS>Q 1
Write the characteristic features of the anther, pollen and stigma of wind-pollinated flowers.
EASY
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 2 - Sexual Reproduction in Flowering Plants>TEST QUESTIONS>Q 1
 How do flower reward their insect pollinators? Explain.