MCQ Collection
MDCAT Biology MCQs
Practice MDCAT Biology questions with answers and explanations.
Choose an option to check your answer.
Correct Answer: D. Pituitary gland
Explanation:
The pituitary releases hormones regulating several other glands.
It is itself controlled by the hypothalamus.
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Correct Answer: D. Produce voluntary movement
Explanation:
Skeletal muscles attach to bones through tendons.
They contract under somatic nervous control.
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Correct Answer: A. Lower blood glucose
Explanation:
Insulin promotes glucose uptake and storage.
It is secreted by pancreatic beta cells.
Choose an option to check your answer.
Correct Answer: A. Produce voluntary movement
Explanation:
Skeletal muscles attach to bones through tendons.
They contract under somatic nervous control.
Choose an option to check your answer.
Correct Answer: B. Lower blood glucose
Explanation:
Insulin promotes glucose uptake and storage.
It is secreted by pancreatic beta cells.
Choose an option to check your answer.
Correct Answer: B. Produce voluntary movement
Explanation:
Skeletal muscles attach to bones through tendons.
They contract under somatic nervous control.
Choose an option to check your answer.
Correct Answer: C. Lower blood glucose
Explanation:
Insulin promotes glucose uptake and storage.
It is secreted by pancreatic beta cells.
Choose an option to check your answer.
Correct Answer: C. Actin and myosin slide past each other to shorten a sarcomere
Explanation:
Myosin heads pull actin toward the sarcomere center.
ATP and calcium regulate cross-bridge cycling.
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Correct Answer: D. Raise blood glucose
Explanation:
Glucagon stimulates hepatic glucose production.
It is secreted during low blood glucose.
Choose an option to check your answer.
Correct Answer: D. Actin and myosin slide past each other to shorten a sarcomere
Explanation:
Myosin heads pull actin toward the sarcomere center.
ATP and calcium regulate cross-bridge cycling.
Choose an option to check your answer.
Correct Answer: A. Raise blood glucose
Explanation:
Glucagon stimulates hepatic glucose production.
It is secreted during low blood glucose.
Choose an option to check your answer.
Correct Answer: A. Actin and myosin slide past each other to shorten a sarcomere
Explanation:
Myosin heads pull actin toward the sarcomere center.
ATP and calcium regulate cross-bridge cycling.
