Junior Secondary · Science

Senses and sense organs : Practice Questions

5 multiple-choice questions marked as you go, and 5 written questions with worked solutions. All on Senses and sense organs .

10 questions24 marksFree, no account

Question 1

1 mark

Sound is produced by vibrations. Which part of the human ear contains the specialized sensory cells that detect these vibrations and send signals to the brain?

Question 2

1 mark

Which of the following statements about sight is correct based on the study material?

Question 3

1 mark

When we perceive the world around us, our brain constantly interprets sensory information. Occasionally, this interpretation can lead to optical illusions where what we see does not accurately reflect reality. Consider the Müller-Lyer illusion, where two lines of the same length appear different due to the direction of arrowheads at their ends.

Which of the following statements provides the most comprehensive explanation for why such optical illusions occur?

Question 4

1 mark

Which of the following is the specific stimulus detected by the specialized sensory cells located in the cochlea of the human ear?

Question 5

1 mark

Which of the following statements best describes the role of the brain in the process of sensing the environment?

Question 6

2 marks

Name one type of specialized sensory cell found in the human body and state the type of stimulus it detects.

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Question 7

3 marks

Explain how the brain acts as a coordinator when we move, by using information from both the eyes and the inner ear to maintain balance.

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Question 8

5 marks

When watching a 3D movie, some people experience motion sickness despite not physically moving. Explain how the brain's interpretation of visual information from the 3D movie can conflict with signals from other sense organs, leading to this feeling of disorientation.

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Question 9

4 marks

Organisms perceive the world by detecting environmental changes.
a) Define the scientific term stimulus. (1 point)
b) Name the specific sense organ and the sense produced when the body detects the sound of a whistle. (2 points)
c) Identify the coordinator in the human body that interprets these signals to produce the sense. (1 point)

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Question 10

5 marks

Animals often possess sensory capabilities that exceed those of humans.
a) Explain how the ability to detect ultraviolet light provides a survival advantage to bees. (2 points)
b) Which specific stimulus do migratory birds use to navigate over thousands of kilometers? (1 point)
c) Describe the sequence of events from the moment an animal detects a predator (stimulus) until it performs an escape (response). (2 points)

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