(English Medium) ICSE Class 9 - CISCE Question Bank Solutions for Biology

What is the name of the chemical substance which constitutes the genes? 

Do you think the cells of an elephant would be larger than the cells of a rat? Explain briefly.

What is the cell theory? Who propounded it and when?

Bougainvillea flower is an example of 

A flower is said to be complete when:

The part of the flower that gives rise to the seed is

The essential whorls of a flower are the

Match the parts in Column A with the flowers or parts of the flower in Column B.

Explain the following term:

Incomplete flower

Explain the following term: 

Pistillate flower

Explain the following term: 

Bisexual flower

Where the following structures/parts located and what are their functions? 

Thalamus

Why are the following described as stated: 

Salvia sepals are petaloid.

Name the different types of androecium found in flowers.

The figure given alongside represents a generalized arrangement of the different parts of a bisexual flower. Name the parts numbered 1-10.

Is the following statement true (T) or false (F)? 

Some seeds have no cotyledons at all.

Is the following statement true (T) or false (F)? 

Maize grain is fruit and not a seed. (T/F)

Name the following : 

A monocotyledonous endospermic seed.

Fill in the blanks:

_______ is a protective layer of radicle and ________ protects the rolled plumule.

Give any two examples each of endospermic (albuminous) seeds, and non-endospermic (exalbuminous) seeds.