(English Medium) ICSE Class 10 - CISCE Important Questions for Biology

Give appropriate biological/technical terms for the following:

The mild chemical substance which when applied on the body kills germs.

Give appropriate biological/technical terms for the following:

The antiseptic substance in tears.

Rewrite the correct form of the statement: Formalin is an example of an Antiseptic

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

The antibiotic penicillin is obtained from

A. Protozoan

B. Bacteria

C. Virus

D. Fungus

Differentiate between Disinfectant and Antiseptic (definition)

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 antibiotic

Expand the following biological abbreviations: DPT

Aqueous humour, Vitreous humour, lris, Central canal

Give biological reasons for the following statements:

The left ventricle of the heart has a thicker wall than the right ventricle. 

The diagram given below represents a section of the human heart. Answer the questions that follow :

(i) Which parts of heart are in the diastolic phase? Give a reason to support your answer.
(ii) Label the parts numbered 1 and 2 in the diagram. What type of blood flows through them?
(iii) What causes the heart sounds ‘LUBB’ and ‘DUP’?
(iv) Name the blood vessels that supply oxygenated blood to the heart muscles.
(v) Draw neat labelled diagrams of a cross section of an artery and a vein.

State the exact location of the Chordae tendinae

Differentiate between LUBB and DUP (names of the valves whose closure produce the sound)

the Biological/technical term for The vein which drains the blood from the intestine to the liver.

the Biological/technical term for Blood vessels carrying blood to the left atrium.

The vein that carries oxygenated blood.

fill in the blanks with suitable functions: Eustachian Tube and ______

The diagram below represents the human heart in one phase of its function. Study the diagram carefully and answer the questions that follow:

(i) Name the phase.
(ii) Which part of the heart is contracting in this phase? Give a reason to support your answer.
(iii) Name the parts labelled 1 to 4.
(iv) What type of blood flows through ‘2’?
(v) State the function of the part numbered ‘5’.
(vi) Name the membrane that covers the heart.