(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

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

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.

Note the relationship between the first two words and suggest the suitable word/words for the fourth place.

Stimulus : Receptor :: Impulse : ______.

Note the relationship between the first two words and suggest the suitable word/words for the fourth place.

Receptor : Sensory nerve :: Motor nerve : ______.

Complete the following statement by choosing the correct alternative from the choice given in bracker:

Reflex action is controlled by
(i) brain (ii) spinal cord
(iii) autonomic (iii) peripheral nervous system

what do we refer to in the nervous system when we say:

Natural and conditioned …………………

State whether the following is simple reflex, conditioned reflex or neither of the two:

Sneezing: …………….

State whether the following is simple reflex, conditioned reflex or neither of the two:

Blushing: ……………….

State whether the following is simple reflex, conditioned reflex or neither of the two.

Contraction of eye pupil

State whether the following is simple reflex, conditioned reflex or neither of the two:

Lifting up a book: …………………..

State whether the following is simple reflex, conditioned reflex or neither of the two:

Knitting without looking: …………………..

State whether the following is simple reflex, conditioned reflex or neither of the two.

Sudden application of brakes of the cycle on sighting an obstacle in front

What is the difference between reflex action and voluntary action?

Two hungry boys (A and B) enter a restaurant and find a table decorated as follows:

Boy B starts salivating but not A. Explain the reason for this difference.

In female, after how much time after fertilization, does the fertilized egg get implanted in the
uterine wall?

Choose the odd one in each of the following: 

Ovary; fallopian tube; ureter; uterus 

Choose the odd one in each of the following: 

Seminiferous tubule; ovum; epididymis; sperm duct; urethra 

Choose the odd one in each of the following: 

Sperm; implantation; fertilization; ovum; ovum; after birth. 

Rewrite the terms in the correct order so as to be in a logical sequence.

Sperm duct, penis, testes, sperms, semen.