(English Medium) ICSE Class 10 - CISCE Important Questions

Blood in the renal artery or renal vein (Which one has more urea ?)

Give appropriate biological or technical terms for the following:

The process of maintaining water and salt balance in the blood.

The diagram given below is that of a structure present in a human kidney.

Study the same and answer the questions that follow:

1) Name the structure represented in the diagram

2) What is the liquid entering part ‘1’ called?

Name two substances present in this liquid that are reabsorbed in the tubule.

3) What is the fluid that comes to part ‘2’ called?

Name the main nitrogenous waste in it.

4) Mention the three main steps involved in the formation of the fluid mentioned in (iii) above

5) Name the substance which may be present in the fluid in part ‘2’ if a person suffers from Diabetes mellitus.

Differentiate between the following pair on the basis of what is indicated in the bracket.

Ureter and Urethra [function]

Define the following term:

Ultrafiltration

 Correct and rewrite the statements by changing the biological term that is underlined for the statement: 
The kidney is composed of number of neurons. 

Differentiate between Afferent arteriole and Efferent arteriole.

The pigment that gives colour to urine:

The pale yellow colour of normal human urine is due to the pigment ______.

Name the following:

The main nitrogenous waste formed in the body.

Assertion (A): We urinate more in summer.

Reason (R): Sweat glands are more active in summer.

Give one example of a diuretic substance.

Differentiate between diabetes mellitus and diabetes insipidus (hormones involved).

Mention the exact location of the Islets of Langerhans

Briefly explain the following terms : Reflex action

Which of the following is not a natural reflex action?

A. Knee-jerk

B. Blinking of eyes due to strong light

C. Salivation at the sight of food

D. Sneezing when any irritant enters the nose

Aqueous humour is present between the :

(A) Lens and Retina

(B) Iris and Lens

(C) Cornea and Iris

(D) Cornea and Lens

The diagram given below shows the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the questions:

1) Name the phenomenon that is depicted in the diagram. Define the phenomenon.

2) Give the technical term for the point of contact between the two nerve cells.

3) Name the parts numbered 1, 2 and 3.

4) How does the arrangement of neurons in the spinal cord differ from that of the brain?

5) Mention two ways by which the spinal cord is protected in our body.

 Name the following : 
(i) The layer of the eyeball that provides nourishment to the eye. 

Answer the following questions briefly: 
Explain how the human eye adapts itself to bright light and dim light.