PATHOLOGY

PATHOLOGY MCQ

ENDOCRINE SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What type of hormones can pass through the lipid membrane of a cell?
A
Steroid hormones
B
Nonsteroid hormones
C
both
D
neither
Explanation: 

Detailed explanation-1: -Final answer: Hence, steroid hormones easily pass through the plasma membrane by simple diffusion because they are lipid-soluble.

Detailed explanation-2: -Non-steroid hormones are made of amino acids. They are not fat soluble, so they cannot diffuse across the plasma membrane of target cells. Instead, a non-steroid hormone binds to a receptor on the cell membrane. The binding of the hormone triggers an enzyme inside the cell membrane.

Detailed explanation-3: -Steroid hormones are synthesized from cholesterol in the gonads and adrenal gland. They can be broadly classified as glucocorticoids, mineralcorticoids, androgens, estrogens and progestagens. Steroid hormones are lipid soluble, allowing them to diffuse through the plasma membrane.

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