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

The exact location of the tricuspid valve

The diagram below represents the simplified pathway of the circulation of blood. Study the same and answer the questions which follow: 

(i) Name the blood vessels labelled 1 and 2.
(ii) State the function of blood vessels labelled 5 and 8.
(iii) What is the importance of the blood vessel labelled 6?
(iv) Which blood vessel will contain a high amount of glucose and amino acids after a meal?
(v) Draw a diagram of the different blood cells as seen in a smear of human blood.

Explain Diapedesis.

Give technical terms for The protective covering of the heart

Give technical terms for The fluid portion of blood

Name the following:

The blood vessel which supplies blood to the liver.

Blood in the pulmonary artery or pulmonary vein (Which one contains less oxyhaemoglobin ?)

Mention the exact location of the Pulmonary semilunar valve

Give appropriate biological or technical terms for the following :

The complex consisting of a DNA strand and a core of histones

Give appropriate biological or technical terms for the following:

Squeezing out of white blood cells from the capillaries into the surrounding tissues.

Give appropriate biological or technical terms for the following

The relaxation phase of the heart.

Given below is a diagram of a human blood smear.

Study the diagram and answer the questions that follow:

a) Name the components numbered ‘1’ to ‘4’

b) Mention two structural differences between the parts ‘1’ and ‘2’.

c) Name the soluble protein found in part ‘4’ which forms insoluble threads during clotting of blood.

d) What is the average lifespan of the component numbered ‘1’ ?

e) Component numbered ‘1’ do not have certain organelles but are very efficient in their function. Explain

The compound formed when haemoglobin combines with carbon dioxide in blood. 

 Match the items given in Column A with the most appropriate ones in Column B and REWRITE the correct matching pairs : 
Column A                     Column B 

(i) Cranial nerves            Testosterone
(ii) Leydig cells                Natural reflex 
(iii) Acetylcholine            12 pairs 
(iv) Spinal nerves             Prolactin
(v) Sneezing                     Neurotransmitter
                                         - 18 pairs

                                         - 31 pairs
                                         - Conditioned reflex                         

 Choose the correct answer from the four options given below :  
(i) While recording the pulse rate, where exactly does a doctor press on our wrist ? 

Define the following term:

Diapedesis

Give Technical Term for the following:

Name the vein in the human body which carries oxygenated blood.

Give the location of Pericardial fluid.

Given below is the diagram of a human blood smear. Label the parts numbered 1, 2 and 3.

Where is Bicuspid valve located? What is its function?