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. Kinesis
- B. Water retension by kidneys
- C. Calcitonin
- D. Sugar in urine
Explanation: Kinesis is a type of orientation. While orientation behavior involves a directed response towards or away from a stimulus, kinesis…
Correct answer: Kinesis562. Diabetes mellitus:
- A. Water retention by kidneys
- B. Sugar in urine
- C. Kinesis
- D. Stomach
Explanation: One of the hallmark symptoms of diabetes mellitus is the presence of sugar (glucose) in the urine, a condition known as glucosuria or…
Correct answer: Sugar in urine563. Adrenaline:
- A. Milk production
- B. Muscles
- C. Neurotransmitter
- D. Involuntary
Explanation: Adrenaline acts as both a hormone and a neurotransmitter. As a hormone, it is released into the bloodstream by the adrenal glands in…
Correct answer: Neurotransmitter564. Reflex action:
- A. Milk production
- B. Muscles
- C. Follicle development
- D. Involuntary
Explanation: Reflex actions are involuntary responses to stimuli. They occur rapidly and automatically without conscious effort or control.
Correct answer: Involuntary565. Effectors:
- A. Follicle development
- B. Milk production
- C. Neurotransmitter
- D. Muscles
Explanation: Effectors are tissues or organs that respond to signals from the nervous system or hormones by producing a specific action or response.
Correct answer: Muscles566. Prolactin:
- A. Involuntary
- B. Milk production
- C. Muscles
- D. Neurotransmitter
Explanation: Prolactin plays a crucial role in milk production in mammals, including humans.
Correct answer: Milk production- A. Brain
- B. Dendrites
- C. Taste buds
- D. Cerebellum
Explanation: Located at the back of the brain below the occipital lobe, the cerebellum is responsible for coordinating voluntary movements, balance…
Correct answer: Cerebellum- A. Inhibitory signals
- B. Olfactory tract
- C. Receptor sites
- D. Taste buds
Explanation: The olfactory tract is the pathway along which the olfactory receptors send their electrical messages to the brain.
Correct answer: Olfactory tract- A. Cerebrum / cerebral cortex
- B. Temporal lobes
- C. Central nervous system
- D. Receptor sites
Explanation: The cerebral cortex, which is the outer layer of the cerebrum, is highly involved in social interactions.
Correct answer: Cerebrum / cerebral cortex- A. Habits
- B. Brain
- C. Dendrites
- D. Synapse
Explanation: Synapses are the spaces between two neurons where communication occurs.
Correct answer: Synapse- A. Frontal lobes
- B. Synapse
- C. Spinal cord
- D. Temporal lobes
Explanation: The spinal cord is a vital part of the central nervous system (CNS) that connects the brain to the rest of the body.
Correct answer: Spinal cord- A. Stimulation
- B. Reception
- C. Conduction
- D. Inhibition
Explanation: Conduction refers to the transmission of electrical signals (action potentials) along the length of a neuron.
Correct answer: Conduction- A. Conduction
- B. Stimulation
- C. Reception
- D. All of the above
Explanation: The nervous system is indeed involved in all of these functions-reception, stimulation, and conduction.
Correct answer: All of the above- A. Brain
- B. Central Nervous System
- C. Peripheral Nervous System
- D. Somatic division
Explanation: The CNS consists of the brain and spinal cord. It serves as the main processing center for information received from the body's sensory…
Correct answer: Central Nervous System- A. Peripheral Nervous System
- B. Afferent
- C. Efferent
- D. Nerve impulse
Explanation: A nerve impulse is an electrical signal that travels along the length of a neuron.
Correct answer: Nerve impulse- A. Neurilemma
- B. Proneuron fiber
- C. Soma
- D. Dendrite
Explanation: Dendrites are the branch-like extensions from the cell body (soma) of a neuron.
Correct answer: Dendrite577. A branch form the body of a neuron, which usually carries information away from its cell body, is:
- A. Axon
- B. Dendrite
- C. Ganglion
- D. Proneuron fiber
Explanation: An axon is a long, slender projection extending from the cell body of a neuron.
Correct answer: Axon- A. Dendrite
- B. Soma
- C. Neurolemma
- D. Axon ending
Explanation: The axon ending, also known as the axon terminal or synaptic terminal, is the terminal part of the axon of a neuron.
Correct answer: Axon ending- A. Only one
- B. More than one, but no set number
- C. More than one, but only on the same axon
- D. More than one, but with each on a different axon
Explanation: In this scenario, a Schwann cell forms myelin around multiple axon segments, but each segment belongs to a different axon.
Correct answer: More than one, but with each on a different axon- A. Sensory
- B. Motor
- C. Association
- D. Unipolar
Explanation: Sensory neurons, also known as afferent neurons, transmit signals from sensory receptors (such as those for touch, temperature, pain…
Correct answer: Sensory