Q1 MCQ Drill: 2021 Life Sciences P1 (2021 NSC October/November National Examination)

Life Sciences Past Paper Question 1 Drill Level 1: Knowledge & Recall

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7 multiple-choice questions taken verbatim from Section A of the official 2021 NSC October/November National Examination Life Sciences Paper 1, auto-marked against the official marking guideline. Questions that rely on diagrams or graphs are excluded - see the full paper for those.

Question 1 of 7 2 Marks

Grommets are used in the treatment of …

A. deafness.

B. blindness.

C. middle-ear infection.

D. multiple sclerosis.

Question 2 of 7 2 Marks

The ability of the lens of the eye to change its shape when viewing an object that is near or far is called …

A. binocular vision.

B. accommodation.

C. pupillary mechanism.

D. refraction of light rays.

Question 3 of 7 2 Marks

Which ONE of the following is the visual defect that results from the uneven curvature of the cornea?

A. Cataracts

B. Long-sightedness

C. Short-sightedness

D. Astigmatism

Question 4 of 7 2 Marks

The receptor(s) involved in maintaining balance is/are the …

A. organ of Corti only.

B. maculae only.

C. maculae and cristae only.

D. organ of Corti, maculae and cristae.

Question 5 of 7 2 Marks

Which of the following structures are involved in maintaining balance when there is a change in the direction of movement of the body?

A. Semi-circular canals and cerebellum

B. Eustachian tube and cerebellum

C. Semi-circular canals and cerebrum

D. Eustachian tube and cerebrum

Question 6 of 7 2 Marks

Which of the following structures are protected by the meninges?

A. Spinal cord and receptors

B. Spinal cord and brain

C. Brain and effectors

D. Effectors and receptors

Question 7 of 7 2 Marks

During a reflex action, impulses enter the spinal cord by means of a/an …

A. sensory neuron through the ventral root of the spinal nerve.

B. sensory neuron through the dorsal root of the spinal nerve.

C. interneuron through the ventral root of the spinal nerve.

D. interneuron through the dorsal root of the spinal nerve.

Q1 MCQ Drill: 2021 Life Sciences P1 (2021 NSC October/November National Examination)

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