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. Chemotropic movement
- B. Chemotactic movement
- C. Chemosastic movement
- D. Haptonastic movement
Explanation: Chemotaxis is the directed movement of a cell in response to a chemical substance, as sperm move toward chemicals released by the ovum.
Correct answer: Chemotactic movement- A. Chemical
- B. Mechanical
- C. Photo
- D. Nociceptors
Explanation: Hearing receptors respond to mechanical vibrations produced by sound waves, so they are mechanoreceptors.
Correct answer: Mechanical- A. Stimulus
- B. Variation
- C. Response
- D. Reaction
Explanation: A stimulus is any detectable change in the internal or external environment, such as light, temperature, pressure, or a chemical change.
Correct answer: Stimulus- A. Receptors
- B. Neurons
- C. Effectors
- D. All of these
Explanation: Receptors detect changes in the environment and convert them into nerve impulses or other signals.
Correct answer: Receptors- A. Kinesis
- B. Taxes
- C. Instinct
- D. Learning
Explanation: Pillbugs respond to humidity by changing the speed of their movement, moving more rapidly in dry conditions and slowing in moist…
Correct answer: Kinesis- A. Thorpe
- B. Darwin
- C. Pavlov
- D. Kohler
Explanation: Darwin gave one of the earliest objective biological descriptions of instinct as an inherited behavioural tendency rather than a conscious…
Correct answer: Darwin- A. Imprinting
- B. Habituation
- C. Insight learning
- D. Latent learning
Explanation: Habituation is the simplest form of learning because an organism gradually stops responding to a repeated, harmless stimulus.
Correct answer: Habituation- A. Hair end organs
- B. Meissner's Corpuscles
- C. Pacinian corpuscles
- D. none of these
Explanation: Pacinian corpuscles are rapidly adapting mechanoreceptors located deep in the skin and subcutaneous tissues, where they detect deep…
Correct answer: Pacinian corpuscles- A. Hair end organs
- B. Meissner's Corpuscles
- C. Pacinian corpuscles
- D. None of these
Explanation: Meissner's corpuscles lie in the dermal papillae of sensitive skin, including the ridges of the fingertips, and detect fine or light…
Correct answer: Meissner's Corpuscles- A. Touch.
- B. Temperature.
- C. Pressure.
- D. Pain
Explanation: Nociceptors are free nerve endings that respond to potentially damaging mechanical, thermal, or chemical stimuli and produce the sensation…
Correct answer: Pain- A. Chemoreceptors
- B. Mechanoreceptors
- C. Photoreceptors
- D. Thermoreceptors
Explanation: Hearing and balance depend on hair cells that respond to mechanical displacement caused by sound waves or movement of fluid in the inner…
Correct answer: Mechanoreceptors- A. Brain
- B. Spinal cord
- C. Hypothalamus
- D. none of these.
Explanation: Most reflex actions below the neck are integrated through reflex arcs in the spinal cord, allowing rapid responses without waiting for…
Correct answer: Spinal cord- A. X: stroke, Y: haemorrhage,
- B. X: haemorrhage, Y: stroke,
- C. X: haemorrhage, Y: arteriosclerosis,
- D. X: stroke, Y: arteriosclerosis,
Explanation: Option A correctly identifies X as stroke (blood flow to brain stops) and Y(bleeding from a vessel) as haemorrhage, which align with the…
Correct answer: X: stroke, Y: haemorrhage,- A. Thalamus
- B. Amygdala
- C. Hippocampus
- D. Hypothalamus
Explanation: The correct answer is the hippocampus, which plays a vital role in the formation and retrieval of long-term memories.
Correct answer: Hippocampus- A. Imprinting
- B. Habituation
- C. Latent learning
- D. Insight learning
Explanation: The correct answer is habituation. Habituation is a simple form of learning where an animal, through repeated exposure, becomes accustomed…
Correct answer: Habituation- A. I
- B. II
- C. III
- D. IV
Explanation: This structure, A, is the corpus callosum, which is the primary structure connecting the right and left cerebral hemispheres.
Correct answer: I- A. A
- B. B
- C. C
- D. D
Explanation: B part is the brainstem (medulla oblongata), which regulates vital functions e.g. breathing, heart rate, and blood pressure.
Correct answer: B- A. Imprinting
- B. Latent learning
- C. Insight learning
- D. Conditioned reflex type I
Explanation: The correct answer is insight learning. Insight learning involves solving a problem through understanding the relationships between…
Correct answer: Insight learning- A. Epilepsy
- B. Graves' disease
- C. Alzheimer's disease
- D. Parkinson's disease
Explanation: Parkinson's disease is the correct answer because it is a neurodegenerative disorder characterized by symptoms such as tremor, muscle…
Correct answer: Parkinson's disease- A. Latent learning
- B. Insight learning
- C. Classic conditioning
- D. Operant conditioning
Explanation: A toddler who burns his hand by touching a hot stove learns to avoid the stove in the future due to the painful consequence that followed…
Correct answer: Operant conditioning