Free Coordination and Control MCQs with Answers
1,687 Coordination and Control MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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- A. Iodine metabolism
- B. Protein metabolism
- C. Glucose metabolism
- D. Basal metabolic rate
Explanation: Thyroxine hormone stimulates various metabolic activities such as the metabolism of glucose, cholesterol metabolism etc leading to an…
Correct answer: Basal metabolic rate- A. TSH
- B. STH
- C. ACTH
- D. Gonadotropin hormone
Explanation: Somatotrophic hormone (STH), also known as growth hormone (GH), is the only hormone released by the anterior pituitary that is not…
Correct answer: STH- A. Liver
- B. Adrenals
- C. Thyroid
- D. Pancreas
Explanation: The pancreas has the dual function of secreting glucagon and insulin into blood (endocrine) and secreting enzymes in the form of the…
Correct answer: Pancreas- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: Explanation:When the neuron is under action potential, the charges on the membrane are reversed.
Correct answer: Option D- A. Serotonin
- B. Acetylcholine
- C. Dopamine
- D. Adrenaline
Explanation: Explanation:The neurotransmitter that lies outside the central nervous system is Acetylcholine, it is only present in the PNS.
Correct answer: Acetylcholine- A. Is more positive outside than inside
- B. Is more negative outside than inside
- C. Has no charge on either side
- D. Has an equal charge on either side
Explanation: Option [A] A typical neuron is more positive outside than inside due to the presence of Na+ K+ pump which countertransports 3Na+ outside…
Correct answer: Is more positive outside than inside- A. Resting membrane potential
- B. Saltatory nerve impulse
- C. Threshold stimulus
- D. Initial nerve impulse
Explanation: Saltatory conduction describes how an electrical impulse skips from node to node down the full length of an axon, speeding the arrival of…
Correct answer: Saltatory nerve impulse- A. Sensory nerve fibres
- B. Myelinated nerve fibres
- C. Motor nerve fibres
- D. Mixed nerve fibres
Explanation: White matter is found in the deeper tissues of the brain (subcortical).
Correct answer: Myelinated nerve fibres- A. Mechanoreceptor
- B. Nociceptors
- C. Chemoreceptors
- D. Thermoreceptors
Explanation: Nociceptors are responsible for detecting pain sensations and transmitting them to the brain.This option is not correct.
Correct answer: Nociceptors1630. When your finger accidentally gets caught in a door, the pain message is sent to your brain through:
- A. Homeostasis
- B. Sensory receptors
- C. Caffeine
- D. The medulla
Explanation: Sensory receptors, specifically nociceptors, are responsible for sending the pain message to the brain when a finger (or any other part of…
Correct answer: Sensory receptors- A. Medulla oblongata
- B. Diencephalom
- C. Cerebrum
- D. Cerebellum
Explanation: The largest part of the brain, the cerebrum initiates and coordinates movement and regulates temperature.
Correct answer: Cerebrum- A. Hypothalamus
- B. Hippocampus
- C. Amygdala
- D. All of the above
Explanation: The limbic system is a complex network of brain structures located in the forebrain.
Correct answer: All of the above- A. Hypothalamus
- B. Cerebellum
- C. Medulla
- D. Midbrain
Explanation: Hunger centers, which regulate appetite and hunger, are primarily located in the hypothalamus of the brain.
Correct answer: Hypothalamus- A. Thalamus
- B. Medulla oblongata
- C. Right cerebral hemisphere
- D. Left cerebral hemisphere
Explanation: The correct answer is the left cerebral hemisphere. This hemisphere is crucial for language and speech functions, containing key areas…
Correct answer: Left cerebral hemisphere- A. Cerebrum
- B. Cerebellum
- C. Medulla
- D. Hypothalamus
Explanation: The cerebrum is the largest part of the brain and is responsible for processing and interpreting sensory information, including sound…
Correct answer: Cerebrum- A. Ivan Pavlov
- B. E.L. Thorndike
- C. Konrad Lorenz
- D. Wolfgang Köhler
Explanation: Edward Thorndike is the correct answer because he conducted experiments using puzzle boxes to study learning in animals.
Correct answer: E.L. Thorndike- A. Diencephalon
- B. Myelencephalon
- C. Telencephalon
- D. Metencephalon
Explanation: The hypothalamus is a region of the forebrain located below the thalamus, forming the basal portion of the diencephalon.
Correct answer: Diencephalon1638. CSF Is found in between:
- A. Pia mater and dura mater
- B. Pia mater and arachnoid mater
- C. Grey matter and pia mater
- D. Dura mater and grey mater
Explanation: Cerebrospinal fluid (CSF) is a clear, colorless liquid that fills and surrounds the brain and the spinal cord and provides a mechanical…
Correct answer: Pia mater and arachnoid mater- A. 02 pairs
- B. 04 pairs
- C. 06 pairs
- D. 08 pairs
Explanation: The cranial nerves are a set of 12 paired nerves in the back of our brain.
Correct answer: 04 pairs- A. Psychosis
- B. Euphoria
- C. Paranoia
- D. Photophobia
Explanation: Cannabis is a plant that has uses as a recreational and medicinal drug. Psychosis is a symptom that involves a disconnection from reality.
Correct answer: Psychosis