Skip to main content

Coordination and Control MCQs for MDCAT Practice

Biology section, Coordination and Control chapter. Up to eight free sample questions, each with the correct answer and a worked explanation. The full chapter opens in the app.

The bank has 2,670 active questions on this chapter. Your first 500 practice attempts are free, and every attempt includes a worked explanation.

  1. Question 1
    Differentiate between autonomic movements and Paratonic movements?
    • utonomic movements are growth-related while paratonic movements are non-growth related. (correct answer)
    • utonomic movements are due to internal stimuli while paratonic movements are due to external stimuli.
    • utonomic movements are controlled by the nervous system while paratonic movements are controlled by hormones.
    • utonomic movements are reversible while paratonic movements are irreversible.
    Correct answer: A
    Distinguish between involuntary autonomic movements and involuntary paratonic movements, focusing on their control and presentation.
  2. Question 2
    Steroid hormones are produced by:
    • Testes and ovaries
    • Adrenal glands and gonads
    • Adrenal cortex and gonads (correct answer)
    • Gonads and thyroids
    Correct answer: C
    Steroid hormones, crucial for various bodily functions, are primarily synthesized by the adrenal cortex and gonads.
  3. Question 3
    Which part of the brain is responsible for higher cognitive functions such as thinking, reasoning, and problem-solving?
    • Medulla oblongata
    • Cerebellum
    • Cerebrum (correct answer)
    • Hypothalamus
    Correct answer: C
    The cerebrum, the largest part of the brain, is the seat of higher cognitive functions like thinking, reasoning, and problem-solving.
  4. Question 4
    Which is more closely related to Mid-brain:
    • 12 pairs
    • Auditory relay centre (correct answer)
    • Planaria
    • Hydra
    Correct answer: B
    The midbrain's role as an auditory relay center distinguishes it from cranial nerve counts and simpler organisms.
  5. Question 5
    Diamorphin is the chemical name of _____.
    • Alcohol
    • Cannabis
    • Nicotine
    • Heroin (correct answer)
    Correct answer: D
    Diamorphin is the common chemical name for heroin, a potent opioid derived from morphine. This question tests knowledge of drug nomenclature and their classifications.
  6. Question 6
    An injury sustained by the hypothalamus is most likely to interrupt:
    • Coordination during locomotion
    • Short-term memory
    • Regulation of body temperature (correct answer)
    • Executive function like decision-making
    Correct answer: C
    The hypothalamus is crucial for maintaining homeostasis, particularly regulating body temperature. Injury disrupts this vital function.
  7. Question 7
    Homeostasis is a fundamental process that enables organisms to maintain a stable internal environment despite external fluctuations. One of the essential components involved in homeostatic regulation is the endocrine system. Which of the following hormone pairs play opposing roles in regulating blood glucose levels, and how do they achieve this balance?
    • Insulin and glucagon; Insulin stimulates glucose uptake, while glucagon promotes glycogen breakdown. (correct answer)
    • Thyroxine and cortisol; Thyroxine increases blood glucose levels, while cortisol decreases blood glucose levels.
    • Estrogen and progesterone; Estrogen promotes glycogen breakdown, while progesterone stimulates glucose storage.
    • Epinephrine and norepinephrine; Epinephrine increases blood glucose levels, while norepinephrine decreases blood glucose levels.
    Correct answer: A
    Insulin and glucagon are key opposing hormones regulating blood glucose, with insulin lowering it via uptake and glucagon raising it via glycogenolysis.
  8. Question 8
    A 50-year-old patient showing, symptoms of tremor, loss of motor movement, and muscle rigidity, is diagnosed with the death of neurons in the midbrain that normally releases dopamine.
    • Epilepsy
    • Graves’ disease
    • Alzheimer’s disease
    • Parkinson’s disease (correct answer)
    Correct answer: D
    This question tests the understanding of neurodegenerative diseases and their associated neurotransmitter deficiencies, specifically linking dopamine loss to Parkinson's symptoms.

Practise all 2,670 Coordination and Control questions

A free account keeps your correct, incorrect and unseen questions separate, and shows the explanation after every attempt.

Create a free account

Read the full Coordination and Control chapter notes: Coordination and Control notes. Or browse every chapter.