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

Define the following:

Exophthalmic goiter

Name the hormone responsible for the following function:

Maintenance of basal metabolism.

Write briefly about the symptoms of exophthalmic goitre.

Name the following:

The compound which stores energy in the cells.

Identify the false statement and rewrite it correctly by changing the first or last word only.

Dark reaction of photosynthesis occurs during night time.

The dark reaction of photosynthesis is known as ______.

Are the following statement true or false? Give a reason in support of your answer.

If a plant is kept in bright light all the 24 hours for a few days, the dark reaction (biosynthetic phase) will fail to occur.

Given below are five terms. Rewrite the terms in the correct order so as to be in logical sequence with regard to photosynthesis:

(i) water molecules, (ii) oxygen, (iii) grana, (iv) hydrogen and hydroxyl ions, (v) photons.

Why is it necessary to place a plant in the dark before starting an experiment on photosynthesis? Explain.

Describe the main chemical changes which occur during photosynthesis in a dark reaction.

List two major harmful effects of the following:

Pesticides such as DDT used in agriculture.

Distinguish between the following pairs of terms : 

Centrosome and chromosome

How is soil pollution caused?

What is the effect of pollution on soil?

Explain the Term: Bio-fertilizer

Explain the Term: Manure

Explain the Term: Nitrification

The pollution caused due to use of pesticides in agriculture.

Two chemical fertilizers.