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Multiple Choice
Which of the following is true about steroid hormones?
A
Steroid hormones are synthesized in the ribosomes.
B
Steroid hormones are primarily composed of amino acids.
C
Steroid hormones are water-soluble and travel freely in the bloodstream.
D
Steroid hormones are derived from cholesterol.
Verified step by step guidance
1
Understand the nature of steroid hormones: Steroid hormones are a class of hormones that are derived from cholesterol, a type of lipid molecule.
Recognize the synthesis location: Steroid hormones are synthesized in the adrenal glands and gonads, not in ribosomes. Ribosomes are involved in protein synthesis, not lipid synthesis.
Identify the composition: Steroid hormones are not composed of amino acids. Amino acids are the building blocks of proteins, whereas steroid hormones are composed of lipid structures.
Consider solubility: Steroid hormones are not water-soluble. They are lipophilic, meaning they can pass through cell membranes easily but require carrier proteins to travel in the bloodstream.
Conclude with the correct statement: The correct statement about steroid hormones is that they are derived from cholesterol, which is a key precursor in their biosynthesis.