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Multiple Choice
Which of the following is a similarity between peptide and steroid hormones?
A
Both are synthesized in the adrenal cortex.
B
Both can pass through the cell membrane without a receptor.
C
Both can act as signaling molecules in the body.
D
Both are derived from cholesterol.
Verified step by step guidance
1
Identify the nature of peptide and steroid hormones: Peptide hormones are made up of amino acids, while steroid hormones are derived from cholesterol.
Understand the synthesis locations: Peptide hormones are synthesized in various glands, such as the pituitary gland, while steroid hormones are synthesized in the adrenal cortex and gonads.
Examine the mechanism of action: Peptide hormones typically bind to receptors on the cell surface, whereas steroid hormones can pass through the cell membrane and bind to intracellular receptors.
Recognize the common function: Both peptide and steroid hormones function as signaling molecules, meaning they transmit signals to regulate physiological processes in the body.
Conclude the similarity: The key similarity is that both peptide and steroid hormones act as signaling molecules, influencing various biological functions.