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

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. 

Choose the correct answer.
Number of spinal nerves in human beings ______________

Explain the Term:

Synapse

The outermost layer of meninges:

Which one of the following is not a simple reflex?

From where the following nerves arise.

Auditory nerve

Stimulation of nerves of the sympathetic nervous system ______.

Arrange and rewrite the terms in the group in the correct order to be in a logical sequence beginning with the term that is underlined:

Receptor, Response, Effector, Spinal Cord.

Assertion (A): Sympathetic nervous system prepares the body for violent action against abnormal conditions.

Reason (R): Sympathetic nervous system accelerates heartbeat.

Which of the following is correct?

Arrange and rewrite the terms in group in the correct order to be in a logical sequence, beginning with the term that is underlined:

Effector, Receptor, Motor neuron, Sensory neuron.

Mohan is fond of playing basketball. His concentration is on shooting the ball into the opponent's basket as given in the picture.

1. Which part of the brain helps Mohan to concentrate in putting the ball into the basket?
2. Name the sense organ that helps to gauge the distance between the ball and the basket.
3. Name the part of the brain that co-ordinates all the voluntary muscles of his body.

Name the type of nerve which has the fibres of both sensory and motor neurons.