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

How do the following structures help in respiration in plants?

Root hairs ____________

The following two chemical reactions are supposed to indicate a certain process occurring in the green plants under two different conditions:

(a) C₆H₁₂O₆ + 6O₂ → 6CO₂ + _______ + 38 ATP

(b) C₆H₁₂O₆ → ________ + 2 CO₂ + 2 ATP

(i) Fill in the blank in each reaction.

(ii) Name the process represented by the two reactions.

(iii) What are the conditions under which the two reactions (a) and (b) are occurring respectively?

The following diagram refers to an apparatus which is used to demonstrate a physiological process:

What is the purpose of keeping boiled peas soaked in a disinfectant in test tube Y?

The following diagram refers to an apparatus which is used to demonstrate a physiological process: 

Name the biological process which causes the above rise.

The following diagram refers to an apparatus which is used to demonstrate a physiological process:

Define the biological process shown in the experiment.

The volume of air in the lungs and the rate at which it is exchanged during inspiration and expiration was measured.

The following diagram shows a group of lung volumes and capacities.

Study the diagram carefully and explain briefly the following :

 Tidal volume (TV)

The chemical substance mainly responsible for tooth disorders is 

List any three effective methods for controlling mosquitoes.

Match Column I with that Which is Most Appropriate in Column II.

Mention whether the following statement is true (T) or false (F).

Louis Pasteur discovered a cure for malaria.

Amoebiasis is caused by the protozoan:

Explain briefly, the role of the following health aids:

Antiseptics 

Given below are the groups of certain substances of particular categories. Mention the category of group and identify the wrong example giving reason. 

Lysol, benzoic acid, DDT, mercurochrome.

Name the following:

Any four antiseptics, any two disinfectants and any two antibiotics.

Differentiate between the disinfectant and deodorant

What do you understand by respiration?

Complete the following statement by choosing the correct alternative out of those given below.

Every living cell of the plant

Name the following:

The process of living beings which is concerned with the release of energy for use in the body.

Write a brief account on the following disease:
Malaria

Fill in the blank:
The causative agent of malaria is a _______.