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

Given below is the diagram of a part of the human ear. Study the same and answer the questions that follow:

1. Give the collective biological term for Malleus, locus and Stapes.
2. Name the parts labelled A, B and C in the diagram.
3. State the functions of the parts labelled 'A' and 'B'.
4. Name the audio receptor region present in the part labelled 'A'.

Name the part of the inner ear that is responsible for static balance in human beings.

The figure given below shows the principal parts of a human ear. Study the diagram and answer the following questions.

1. Label the parts 1 to 8.
2. State the role of parts 6, 7 and 8.
3. Why is it harmful to use a sharp object to remove ear wax? Mention the number and name of the part involved.

Write important role/roles of the following:

S.A.N.

Write the exact location of the following:

Pacemaker

Mention whether the following statement is (T) Or (F). Give reason in support of your answer.  

Crossing over between chromatids can occur only between homologous chromosomes. 

The diagram given below represents a certain phenomenon which occurs during meiosis. Name and explain the phenomenon by using the terms homologous chromosomes, chromatids, crossing over. 

Which part of the human ear gives ‘ Dynamic balance’ to the body? 

Choose the correct answer:
Crossing over is a feature of ______________

Give the biological terms for the three ear ossicles.

Distinguish between Semicircular canals and Utriculus based on their function.

The ear ossicle that transports sound vibrations to the inner ear:

Which part of the human ear gives ‘Static balance’ to the body? 

Rahul inserted a hairpin into his right ear to remove ear wax. He felt a sudden sharp pain with loss of hearing. This was due to ______.

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

Auditory canal, Organ of Corti, Stapes, Malleus

Read the explanation given below and name the structure:

A tubular passage that connects the pharynx and the middle ear.

Give reason:

The children of the same parents, howsoever similar, are different from each other in certain aspects.

Human ear is concerned with hearing only.

Pinna concentrates and directs sound waves towards tympanum.

Write the main functional activity of the following structure.

Cochlea