Which of the following statements is true?
A)All hormones are proteins.
B)Protein is the primary energy source for the human body.
C)Proteins are a major component of starch molecules.
D)Certain proteins transport nutrients and oxygen in the bloodstream.

Question

Quizplus · Accepted Answer

Certain proteins, such as hemoglobin, transport nutrients (like oxygen) in the bloodstream. Choice A is incorrect because not all hormones are proteins (some are lipids or amino acid derivatives). Choice B is incorrect because carbohydrates (such as glucose) are the primary energy source for the human body. Choice C is incorrect because proteins and starch molecules are two different types of biomolecules.

Which of the Following Statements Is True