Homework Answers
Answer:
Correct Option:
1. D. Steroid hormones bind to intracellular receptors but peptide hormones bind to surface receptors
Explanation: Steroid hormones being lipid soluble enter inside the cell while peptide hormones being water soluble cannot cross the membrane, thereby bind to surface receptors and function via second messengers.
2. B. insulin
Explanation: Hypoglycemia is reduced sugar level. So, when sugar level falls down a certain minimum level which is harmful for the body, insulin secretion is inhibited as insulin (hormone) metabolises glucose.
3. D. Cretinism and adrenal medulla
Explanation: Cretinism should be matched with thyroid gland as it is caused due to hypothyroidism.
4. C. Determine whether the hormone is soluble in oil or water
Explanation: As steroid hormones are lipid soluble so they will dissolve in oil while peptide hormones being water soluble will dissolve in water.
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