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Question (1)

QN0036072

1 Why do living organisms need systems of control and coordination?

(A) To stop all movement
(B) To recognise environmental changes and respond appropriately
(C) To prevent growth
(D) To produce only hormones

Correct Answer: B

Explanation:

Organisms need to detect changes in their environment and produce suitable responses.

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Question (2)

QN0036073

2 A student touches a hot object and immediately pulls the hand away. Which type of response is this?

(A) Voluntary action
(B) Reflex action
(C) Growth movement
(D) Tropic movement

Correct Answer: B

Explanation:

A reflex action is a quick response to a stimulus.

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Question (3)

QN0036074

3 Which specialised structures detect information from the environment?

(A) Receptors
(B) Muscles
(C) Hormones
(D) Bones

Correct Answer: A

Explanation:

Receptors located in sense organs detect environmental stimuli.

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Question (4)

QN0036075

4 A person smells an incense stick. Which type of receptor detects the smell?

(A) Gustatory receptor
(B) Olfactory receptor
(C) Touch receptor
(D) Muscle receptor

Correct Answer: B

Explanation:

Olfactory receptors detect smell.

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Question (5)

QN0036076

5 A gustatory receptor is primarily associated with detecting

(A) smell
(B) sound
(C) taste
(D) light

Correct Answer: C

Explanation:

Gustatory receptors detect taste.

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Question (6)

QN0036077

6 Which sequence correctly represents the movement of a nerve impulse through a neuron?

(A) Axon → dendrite → cell body
(B) Dendrite → cell body → axon
(C) Cell body → dendrite → axon
(D) Dendrite → axon → cell body

Correct Answer: B

Explanation:

The impulse is received by the dendrite, passes through the cell body and travels along the axon.

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Question (7)

QN0036078

7 What happens when an electrical impulse reaches the end of an axon?

(A) The neuron disappears
(B) Chemicals are released into the synapse
(C) The impulse stops permanently
(D) The axon becomes a muscle

Correct Answer: B

Explanation:

Chemicals are released at the end of the axon and cross the synapse.

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Question (8)

QN0036079

8 The gap between two neurons is called the

(A) Axon
(B) Dendrite
(C) Synapse
(D) Receptor

Correct Answer: C

Explanation:

A synapse is the gap between two neurons.

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Question (9)

QN0036080

9 Why is nervous tissue specialised for control and coordination?

(A) It stores food
(B) It conducts information through electrical impulses
(C) It produces digestive enzymes
(D) It forms bones

Correct Answer: B

Explanation:

Nervous tissue conducts information through electrical impulses.

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Question (10)

QN0036081

10 A person accidentally touches a flame and pulls the hand away before consciously thinking about the danger. Why is this response advantageous?

(A) It delays the response
(B) It provides a quick protective response
(C) It prevents all nerve impulses
(D) It requires digestion first

Correct Answer: B

Explanation:

Reflex actions provide quick protective responses.

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Question (1)

1 Why do living organisms need systems of control and coordination?

Explanation:

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Question (2)

2 A student touches a hot object and immediately pulls the hand away. Which type of response is this?

Explanation:

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Question (3)

3 Which specialised structures detect information from the environment?

Explanation:

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Question (4)

4 A person smells an incense stick. Which type of receptor detects the smell?

Explanation:

Link:

Question (5)

5 A gustatory receptor is primarily associated with detecting

Explanation:

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Question (6)

6 Which sequence correctly represents the movement of a nerve impulse through a neuron?

Explanation:

Link:

Question (7)

7 What happens when an electrical impulse reaches the end of an axon?

Explanation:

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Question (8)

8 The gap between two neurons is called the

Explanation:

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Question (9)

9 Why is nervous tissue specialised for control and coordination?

Explanation:

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Question (10)

10 A person accidentally touches a flame and pulls the hand away before consciously thinking about the danger. Why is this response advantageous?

Explanation:

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