Choose the pair of hormones that have antagonistic effects on blood sugar levels:
Correct answer: C. Glucagon and insulin
- A. Calcitonin and PTH
- B. Adrenalin and glucagon
- C. Glucagon and insulin
- D. ADH and aldosterone
Explanation
Glucagon and insulin are a pair of hormones with antagonistic effects on blood sugar levels. Glucagon increases blood sugar levels by stimulating the liver to release glucose into the bloodstream, while insulin decreases blood sugar levels by promoting the uptake of glucose by cells and the storage of excess glucose as glycogen. Together, they help maintain blood sugar levels within a narrow range.
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About Coordination and Control
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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