Coordination and Control

Coordination and Control MDCAT MCQs with answers

145 past paper MCQs from Biology unit 5, Coordination and Control, across 3 topics. They are arranged topic by topic; bigger topics show a sample here and link to their full set and to study notes. Tap “Show answer” for the correct option and a short solution.

Practise as a quiz

Receptors

1.The pressure receptors that receive deep pressure stimuli in the human body are called: (MDCAT 2023)

  1. Meissner corpuscles
  2. Pacinian corpuscles
  3. red blood corpuscles
  4. white blood corpuscles
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Correct answer: (b) Pacinian corpuscles

Pacinian corpuscles lie deep in the skin and respond to heavy pressure and vibration.

2.A taste receptor is an example of a: (MDCAT 2024)

  1. mechanoreceptor
  2. nociceptor
  3. photoreceptor
  4. chemoreceptor
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Correct answer: (d) chemoreceptor

It responds to dissolved chemicals, which is what a chemoreceptor does.

3.Olfactory receptors are the type of: (UHS MDCAT 2025)

  1. photoreceptors
  2. mechanoreceptors
  3. thermoreceptors
  4. chemoreceptors
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Correct answer: (d) chemoreceptors

Smell is sensed by chemoreceptors, which respond to molecules dissolved in the mucus.

All 10 Receptors MCQs → Receptors notes →

Neurons

4.The neurotransmitter active outside the central nervous system is: (MDCAT 2022)

  1. acetylcholine
  2. dopamine
  3. serotonin
  4. endorphin
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Correct answer: (a) acetylcholine

Acetylcholine works at the neuromuscular junction and in the autonomic nervous system.

5.The chemical messengers that transmit an action potential across a synapse are: (MDCAT 2023)

  1. the synaptic knob
  2. reflex actions
  3. neurotransmitters
  4. acetylcholinesterase
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Correct answer: (c) neurotransmitters

The vesicles of the synaptic knob release a neurotransmitter across the cleft.

6.During the resting membrane potential of a neuron: (MDCAT 2023)

  1. the outer surface is positive and the inner surface negative
  2. the inner surface is positive and the outer surface negative
  3. both surfaces are equally positive
  4. both surfaces are equally negative
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Correct answer: (a) the outer surface is positive and the inner surface negative

The sodium-potassium pump and the potassium leak leave the inside about $-70$ mV with respect to the outside.

All 96 Neurons MCQs → Neurons notes →

Brain

7.The middle layer of the meninges is the: (MDCAT 2022)

  1. arachnoid mater
  2. pia mater
  3. dura mater
  4. perimysium
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Correct answer: (a) arachnoid mater

From outside in the order is dura, arachnoid, pia.

8.The part of the brain which coordinates motions and maintains body position is the: (MDCAT 2022)

  1. cerebellum
  2. cerebrum
  3. pons
  4. medulla oblongata
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Correct answer: (a) cerebellum

The cerebellum keeps balance and makes movement smooth.

9.The medulla oblongata is a part of the: (MDCAT 2024)

  1. forebrain
  2. midbrain
  3. hindbrain
  4. hippocampus
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Correct answer: (c) hindbrain

With the cerebellum and pons it makes up the hindbrain, and it holds the vital centres.

All 39 Brain MCQs → Brain notes →

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