English Medium कक्षा १० - CBSE Question Bank Solutions for Science

 Write the names of the regions in hindbrain. Give one function of each region.

Name the function of cerebrum.

A person walks across a room in barefeet and puts his foot on a drawing pin lying on the floor. He lets out a cry. Explain what happens in his nervous system in bringing about this response.

Explain the difference between of the following pair of terms :
receptor and effector

Explain the difference between of the following pair of terms :

cerebrum and cerebellum

What is the difference between a voluntary and an involuntary action? Which kind of action is digestion? Explain your choice.

When you smell a favourite food your mouth begins to water (that is, you secrete saliva). Write down what is the example of the smell of the food?

When you smell a favourite food your mouth begins to water (that is, you secrete saliva). Write down what is the example of the cells in your nasal passages which perceive the smell?

When you smell a favourite food your mouth begins to water (that is, you secrete saliva). Write down what is the example of the gland which is stimulated to secrete saliva.

What is a reflex action? Explain with the help of an example.

Define reflex arc. Give the flow chart of a spinal reflex arc.

Give the various functions of brain.

A cell (or group of cells) in a sense organ which is sensitive to a particular type of stimulus is called :

(a) interceptor
(b) effector
(c) receptor
(d) acceptor

Which of the following cannot be considered a receptor?

(a) ear
(b) nose
(c) muscle
(d) eye

Which of the following helps in maintaining posture and balance of the human body?

Cerbellum, medulla and pons are the parts of :
(a) mid-brain
(b) hind-brain
(c) forebrain
(d) spinal cord

Which of the following are cerebral reflexes?
(i) a person pulls away his hand on touching a hot object
(ii) a person spits out immediately when a fly enters his mouth while talking
(iii) A person walking bare foot lifts his foot at once on stepping on to a nail
(iv) A person's pupil contracts at once in the presence of bright light
(a) (i) and (ii)  (b) (ii) and (iii)  (c) (iii) and (iv)  (d) (ii) and (iv)

The involuntary actions in the body are controlled by :

(a) medulla in forebrain
(b)medulla in hindbrain
(c) medulla in spinal cord
(d) medulla in midbrain

Which of the following is not an involuntary action?
(a) vomiting
(b) chewing
(c) heart beat
(d) salivation

One of the following controls the peristaltic movements of alimentary canal. This one is :

(a) cerebrum
(b) cerebellum
(c) pons
(d) medulla