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

Chromosomes get aligned at the centre of the cell during:
A. Metaphase
B. Anaphase
C. Prophase
D. Telophase

the exact location of the Thylakoids

State the exact location of the Loop of Henle.

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.

the biological/technical terms for Capacity of our body to resist disease.

the biological/technical terms for the hormone increasing reabsorption of water by kidney tubules

An apparatus, as shown below, was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:

1. Name the process being studied.
2. Explain the process named above in Q.3(a)(i).
3. Why was the pot covered with a plastic sheet?
4. Suggest a suitable control for this experiment.
5. Mention two ways in which this process is beneficial to plants.
6. List three adaptations in plants to reduce the above mentioned process.

The diagram given below shows a section of human kidney. Study the diagram carefully and answer the questions that follow :

(i) Label the parts numbered 1 to 4.
(ii) Why does part ‘2’ have a striped appearance?
(iii) What is the fluid that passes down part ‘4’? Name the main nitrogenous waste present in it.
(iv) Mention the structural and functional units of kidneys.
(v) Name the two major steps in the formation of the fluid mentioned in Q.5 (a) (iii).

The diagram given below shows the male urinogenital system of a human being. Study the diagram and answer the questions that follow:

(i) Label the parts numbered 1 to 8.
(ii) Name the corresponding structure of part (4) in female  reproductive system.
(iii) What is the role of part 7?

Name the sex chromosomes in human males and females

What is the number of chromosomes in the gametes of human beings?

Explain Selective reabsorption

The process of conversion of ADP into ATP during photosynthesis.

Identify the odd one.

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?

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.

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

Expand the following biological abbreviations: ATP

The given diagram represents a nephron and its blood supply. Study the diagram and answer the following questions: 

(i) Label parts 1, 2, 3 and 4.
(ii) State the reason for the high hydrostatic pressure in the glomerulus.
(iii) Name the blood vessel which contains the least amount of urea in this diagram.
(iv) Name the two main stages of urine formation.
(v) Name the part of the nephron which lies in the renal medulla.