Free Coordination and Control MCQs with Answers

• A. Heart
• B. Liver
• C. Stomach
• D. Eyes

Explanation: Fundography uses a photograph of the inside surface of your eye - including the retina, optic disc, macula, and posterior pole (fundus) -…

• A. Voluntary digestion
• B. Thinking
• C. Intelligence
• D. Skeletal muscles

Explanation: Functions of the cerebrum include initiation of movement, coordination of movement, temperature, touch, vision, hearing, judgment…

• A. Sensory nerves
• B. Motor nerves
• C. Mixed nerves
• D. Unknown

Explanation: The cell bodies of the sensory neurons are in the dorsal root ganglion, but the motor neuron cell bodies are in the grey matter.

• A. 5
• B. 4
• C. 3
• D. 2
• E. 1

Explanation: There are three layers of meninges around the brain and spinal cord. The outer layer, the dura mater, is tough, white fibrous connective…

• A. A=r, B=q, C=p, D=s
• B. A=r, B s, C=q, D=t,
• C. A=t, B=p, C=q, D=r
• D. A=t, B=q, C=p, D=s

Explanation: Your cerebral hemisphere plays a key role in memory, intelligence, thinking, learning, reasoning, problem-solving, emotions…

• A. Labor contractions
• B. Body temperature
• C. Insulin production
• D. Thyroxine release

Explanation: A feedback mechanism is a loop system wherein the system responds to a perturbation.

• A. Impulse
• B. Synapse
• C. Axon
• D. Cleft

Explanation: In the nervous system, a synapse is a structure that permits a neuron (or nerve cell) to pass an electrical or chemical signal to another…

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Explanation: The correct answer is Option D. Neurotransmitter substances are stored and released at the axon terminals.

• A. The Thalamus is responsible for motor control
• B. The Cerebellum coordinates voluntary movements
• C. The medulla oblongata processes visual information
• D. The Thalamus regulates breathing and heart rate
• E. The cerebellum processes auditory information

Explanation: The correct answer is Option B: The cerebellum coordinates voluntary movements.

• A. Option A
• B. Option B
• C. Option C
• D. Option D
• E. Option E

Explanation: Neurotransmitters called acetylcholine (V) are released, and an action potential (W) is generated.

• A. Move out of the cell by simple diffusion
• B. Move into the cell by simple diffusion
• C. Move out of the cell by facilitated diffusion
• D. Move into the cell by facilitated diffusion

Explanation: As the question mentions, there is a high concentration of sodium ions outside the cell, which means that through sodium leaky channels…

• A. 25cm
• B. Less than 25 cm
• C. More than 25 cm
• D. Infinity

Explanation: The closest distance we can see with our eyes is 25 cm. This is called the least distance of distinct vision, which is the closest…

• A. Thalamus
• B. Myopic
• C. Both a and b
• D. None of these

Explanation: In the visual system, the thalamus receives input from the retina, which is relayed to the brain via the optic nerve.

• A. Hypermetric
• B. Cerebral cortex
• C. Normal sighted
• D. None of these

Explanation: Options A and B are terms related to the Central Nervous System. Option C is incorrect because frogs are naturally near-sighted.

• A. Olfactory receptors
• B. Gustatory receptors
• C. Cutaneous receptors
• D. All of these

Explanation: The gustatory system, or sense of taste, is the sensory system that is partially responsible for the perception of taste (flavor).

• A. Sensory neurons carry impulses from sensory receptors to the CNS; interneurons relay signals within the CNS; motor neurons transmit impulses from the CNS to muscles or glands
• B. Motor neurons carry sensory impulses to the CNS; interneurons transmit impulses to muscles; sensory neurons relay signals within the CNS
• C. Interneurons carry impulses from effectors to the CNS; sensory neurons transmit impulses from the CNS to interneurons; motor neurons pass signals within the CNS
• D. Sensory neurons transmit impulses from the CNS to effectors; motor neurons carry sensory information to the CNS; interneurons connect sensory to motor neurons outside the CNS

Explanation: Sensory neurons function to carry the sensory information to the CNS. Interneurons transfer impulses from sensory to motor neurons…

• A. Class Fish
• B. Class Amphibia
• C. Class Reptilia
• D. Class Mammalia

Explanation: Negative feedback is a type of regulation in biological systems in which the end product of a process, in turn, reduces the stimulus of…

• A. Conversion of glucose to glycogen in liver cells
• B. Decrease in blood glucose concentration
• C. Increased uptake of glucose by muscle cells
• D. Production of cyclic AMP in target cells

Explanation: Option D is correct. 'Glucagon' has the opposite role to 'insulin', i.e., it mobilizes blood glucose in the plasma when you're…

• A. 33 pairs
• B. Mostly mixed nerves
• C. The dorsal root contains sensory neurons
• D. The ventral root contains motor neurons
• E. C and D both

Explanation: As the dorsal root emerges from the intervertebral neural foramina, it forms the dorsal root ganglion (DRG).

• A. Dopamine
• B. Hydrochloric acid
• C. Sodium ions
• D. Calcium ions

Explanation: 'Dopamine' is a neurotransmitter that helps send signals in the brain. Neurotransmitters are chemicals made by nerve cells called neurons.