How does the endosperm in angiosperm become triploid?

Important Questions on Sexual Reproduction in Flowering Plants

EASY

12th ICSE

IMPORTANT

I.S.C BIOLOGY FOR'CLASS XII>Chapter 2 - Sexual Reproduction in Flowering Plants>PRACTICE QUESTIONS>Q 14

What term is used to describe the covering of pollen grains that has characteristics sculpturing?

EASY

12th ICSE

IMPORTANT

I.S.C BIOLOGY FOR'CLASS XII>Chapter 2 - Sexual Reproduction in Flowering Plants>PRACTICE QUESTIONS>Q 15

Define Geitonogamy.

EASY

12th ICSE

IMPORTANT

I.S.C BIOLOGY FOR'CLASS XII>Chapter 2 - Sexual Reproduction in Flowering Plants>PRACTICE QUESTIONS>Q 16

Give the term for flowers pollinated by honeybees and butterflies. List any two specific features of such flowers.

EASY

12th ICSE

IMPORTANT

I.S.C BIOLOGY FOR'CLASS XII>Chapter 2 - Sexual Reproduction in Flowering Plants>PRACTICE QUESTIONS>Q 17

Explain the function of germ pores.

MEDIUM

12th ICSE

IMPORTANT

I.S.C BIOLOGY FOR'CLASS XII>Chapter 2 - Sexual Reproduction in Flowering Plants>PRACTICE QUESTIONS>Q 18

What do you technically call the water that you drink and the kernel you eat in a tender coconut?

HARD

12th ICSE

IMPORTANT

I.S.C BIOLOGY FOR'CLASS XII>Chapter 2 - Sexual Reproduction in Flowering Plants>PRACTICE QUESTIONS>Q 19

A bilobed, dithecous anther has 100 microspore mother cells per microsporangium. How many male gametophytes, this anther can produce?

MEDIUM

12th ICSE

IMPORTANT

I.S.C BIOLOGY FOR'CLASS XII>Chapter 2 - Sexual Reproduction in Flowering Plants>PRACTICE QUESTIONS>Q 20

An anther with malfunctioning tapetum often fails to produce viable male gametophytes. Why?

MEDIUM

12th ICSE

IMPORTANT

I.S.C BIOLOGY FOR'CLASS XII>Chapter 2 - Sexual Reproduction in Flowering Plants>PRACTICE QUESTIONS>Q 21

Write the functions of tapetum.