(English Medium) ICSE Class 10 - CISCE Question Bank Solutions for Biology

Rewrite the correct form of the statement: Sulphadiazine is an example of an Antiseptic.

the exact location of the Thylakoids

the exact location of the Lenticels

The phenomenon of loss of water through a cut stem or injured part of plant is called ___________.

The diagram below shows two test-tubes A and B. Test-tube A contains a green water plant. Test-tube B contains both a green water plant and a snail. Both testtubes are kept in sunlight. Answer the questions that follow:

(i) Name the physiological process that releases the bubbles of oxygen.
(ii) Explain the physiological process as mentioned above in Q2 (a)(i).
(iii) What is the purpose of keeping a snail in test-tube ‘B’?
(iv) Why does test-tube ‘B’ have more bubbles of oxygen?
(v) Given an example of a water plant that can be used in the above process.
(vi) Write the overall chemical equation for the above process.

Mention any two activities of the WHO

Draw neat and labelled diagrams of a myelinated neuron

The process of conversion of ADP into ATP during photosynthesis.

Identify the odd one in each set : Transpiration, Photosynthesis, Phagocytosis, Guttation

Identify the odd one in each set : Cyton, Photon, Axon, Dendron

The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental setup was placed in bright sunlight. Study the diagram and answer the following questions:

(i) Name the process intended for study.
(ii) Define the above mentioned process.
(iii) When the weight of the test tube (A & B) is taken before and after the experiment, what is observed? Give reasons to justify your observation in A & B.
(iv) What is the purpose of keeping the test tube B in the experimental setup?

The antibiotic penicillin is obtained from

A. Protozoan

B. Bacteria

C. Virus

D. Fungus

Differentiate between Spinal nerves and Cranial nerves (number of nerves).

Differentiate between Disinfectant and Antiseptic (definition)

A potted plant was taken in order to prove a factor necessary for photosynthesis. The potted plant was kept in the dark for 24 hours. One of the leaves was covered with black paper in the centre. The potted plant was then placed in sunlight for a few hours.

(i) What aspect of photosynthesis was being tested?
(ii) Why was the plant placed in the dark before beginning the experiment?
(iii) During the starch test, why was the leaf 

      (1) boiled in water

      (2) boiled in methylated spirit

(iv) Write a balanced chemical equation to represent the process of photosynthesis.
(v) Draw a neat diagram of a chloroplast and label its parts.

The diagram given below is a representation of a certain phenomenon pertaining to the nervous system. Study the diagram and answer the following questions:

(i) Name the phenomenon which is being depicted.
(ii) Give the technical term for the point of contact between the two nerve cells.
(iii) Name the parts 1, 2, 3, and 4.
(iv) Write the functions of parts 5 and 6
(v) How does the arrangement of neurons in the spinal cord differ from that of the brain?

Name the disease for which the following types of vaccines are given:

Salk’s vaccine

Name the disease for which the following types of vaccines are given: 

BCG

Give one example of An aquatic plant used in the laboratory to demonstrate O₂ liberation during photosynthesis

Give one example of An antibiotic