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

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

 Identify the ODD term in each set and name the CATEGORY to which the remaining three belong : 
Axon, Dendron, Photon, Cyton

 Answer the following questions briefly: 
 How are the cytons and axons placed in the brain and the spinal cord?

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 ______________

The outermost layer of meninges:

Which one of the following is not a simple reflex?

How are cytons and axons arranged in the spinal cord?

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.

Given below is the transverse section of the spinal cord. Read the information below the diagram and fill in the blanks:

The spinal cord extends from the medulla oblongata of the brain and runs down through the whole length of the vertebral column. The spinal cord is covered by the meninges. It conducts impulses from the skin and muscles to the brain. It also conducts impulses from the brain to the muscles of the trunk and limbs.

The spinal cord is a part of the (a) ______ Nervous System. The grey matter in the picture given above consists of (b) ______ while the white matter consists of (c) ______. The spinal cord is concerned with the (d) ______ actions below the neck. (e) ______ is the bony structure that protects the spinal cord.

The kind of lens required to correct Myopia

Deafness is causal due to the rupturing of the Pinna.

Eye : Optic nerve : : Ear : ___________

Given below is a representation of a kind of pollution. Study the same and answer the questions that follow

(i) Name the kind of pollution.
(ii) List any three common sources of this pollution.
(iii) Mention three harmful effects of this pollution on human health.
(iv) Explain the term ‘Pollutant’.
(v) Name two soil pollutants