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

Mention any two activities of the WHO

The process of conversion of ADP into ATP during photosynthesis.

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

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 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.

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

Expand the following biological abbreviations: ATP

Expand the following biological abbreviations: DPT

Categorise the following activities according to the functions of the Red Cross Society and the WHO:

(1) To suggest quarantine measures to prevent spread of disease

(2) Humanitarian services to victims of war

(3) To educate people in accident prevention

(4) To promote projects for research on disease

Name the following:

The organization which procures and supplies blood during an emergency

Complete the following paragraph by filling in the blank (1) to (5) with appropriate words:

To test a leaf for starch, the leaf is boiled in water to (1) _________.  It is then boiled in Methylated spirit to (2) ________. The leaf is dipped in warm water to soften it. It is placed in a petri dish, and (3) _____ solution is added. The region of the leaf which contains starch, turns (4) ________and the region while does not contain starch, turns (5) __________.

Correct the following statements by changing the underlined words:

Xylem transports starch from the leaves to all parts of the plant body

Differentiate between the following pairs on the basis of what is indicated in the brackets.

Leaf and Liver [form in which glucose is stored]

Give biological explanations for Plants growing in fertilized soil are often found to wilt if the soil is not adequately watered.

Name the structural and functional unit of the nervous system.