Coordination and response: sense organs — KCSE Biology

KCSE Biology · 94 practice questions · 3 syllabus objectives

30 easy30 medium34 hard

What You'll Learn

Key learning outcomes for this topic, aligned to the KNEC KCSE syllabus.

Draw and label the human eye and ear

State the functions of parts of the eye and ear

Coordination and response: sense organs

Sample Questions

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easySHORT ANSWER3 marks

State the functions of the following components of the ear: (a) cochlea, (b) tympanic membrane, (c) auditory nerve. (3 marks)

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Part (b) — 3 marks

Translates sound vibrations into nerve impulses; (cochlea) (1 mk)

Vibrates in response to sound waves to transmit sound; (tympanic membrane) (1 mk)

Carries auditory information from the cochlea to the brain; (auditory nerve) (1 mk)

easySHORT ANSWER3 marks

List the functions of the following parts of the human eye: (a) pupil, (b) ciliary muscles, (c) retina. (3 marks)

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Part (a) — 3 marks

Controls the amount of light entering the eye; (pupil) (1 mk)

Adjusts the shape of the lens for focusing; (ciliary muscles) (1 mk)

Contains photoreceptor cells that detect light and form images; (retina) (1 mk)

easySHORT ANSWER4 marks

Explain the roles of the following components of the human ear: (a) cochlea, (b) auditory nerve. (4 marks)

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Part (a) — 4 marks

The cochlea converts sound vibrations into nerve impulses (1 mk)

The cochlea contains hair cells that respond to different sound frequencies (1 mk)

The auditory nerve transmits sound information from the cochlea to the brain (1 mk)

The auditory nerve allows the brain to interpret sound stimuli (1 mk)

Describe the main functions of the following parts of the human eye: (a) lens, (b) retina. (4 marks)

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Why Practise Coordination and response: sense organs?

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Coordination and response: sense organs — KCSE Biology

What You'll Learn

Sample Questions

+91 More Questions

Why Practise Coordination and response: sense organs?

KNEC Aligned

Detailed Marking Schemes

Track Your Mastery

Master Coordination and response: sense organs for KCSE