Differentiate between geitonogamy and allogamy.

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 2

Define siphonogamy.

EASY

12th ICSE

IMPORTANT

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

Define endosperm.

EASY

12th ICSE

IMPORTANT

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

Define double fertilization.

EASY

12th ICSE

IMPORTANT

I.S.C BIOLOGY FOR'CLASS XII>Chapter 2 - Sexual Reproduction in Flowering Plants>PRACTICE QUESTIONS>Q 3

Describe the structure of the female gametophyte of an angiosperm.

EASY

12th ICSE

IMPORTANT

I.S.C BIOLOGY FOR'CLASS XII>Chapter 2 - Sexual Reproduction in Flowering Plants>PRACTICE QUESTIONS>Q 4

Write a note on the role of pollination in the growth and development in an angiosperm.

MEDIUM

12th ICSE

IMPORTANT

I.S.C BIOLOGY FOR'CLASS XII>Chapter 2 - Sexual Reproduction in Flowering Plants>PRACTICE QUESTIONS>Q 5

Draw a labelled sketch of L.S. of pistil showing porogamous type of fertilisation.

MEDIUM

12th ICSE

IMPORTANT

I.S.C BIOLOGY FOR'CLASS XII>Chapter 2 - Sexual Reproduction in Flowering Plants>PRACTICE QUESTIONS>Q 6

Draw a labelled diagram of the longitudinal section of the maize grain to show the structure of mature embryo.

HARD

12th ICSE

IMPORTANT

I.S.C BIOLOGY FOR'CLASS XII>Chapter 2 - Sexual Reproduction in Flowering Plants>PRACTICE QUESTIONS>Q 7

Explain double fertilization and give its significance.