Draw a labelled long sectional view of an albuminous seed.

Important Questions on Sexual Reproduction in Flowering Plants

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 9

How are seeds advantageous to flowering plants?

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 10

Why most zygotes in angiosperms divide only when certain amount of endosperm is formed?

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 10

Why groundnut seeds are exalbuminous and castor seeds are albuminous?

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 10

Why micropyle remains as a small pore in the seed coat of a seed?

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 10

Why integument of an ovule harden and the water content is highly reduced as the seed matures?

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 10

Why apple and cashew are not called true fruits?

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 11

Give reason for the anthers of angiospermic flowers are described as dithecous.

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 11

Give a reason for the hybrid seeds have to be produced year after year.