Biology CLEP Prep Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Biology CLEP Test with comprehensive flashcards and multiple choice questions. Each question comes with explanations and hints to ensure a full understanding. Boost your exam readiness today!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Select the function of proteins

Provides energy
Structural components of cells
Carrier molecules
Regulation of metabolism

The correct answer is: Structural components of cells

Proteins are involved in various functions within an organism. While it is true that proteins can provide energy, this is not considered their main function. Carbohydrates and fats are more efficient sources of energy than proteins. Additionally, while some proteins can act as enzymes in metabolic reactions, the main function of proteins is not to regulate metabolism. Carrier molecules primarily refer to lipoproteins, which transport cholesterol and other molecules in the blood. While some proteins may have carrier functions, this is not their main function. The main function of proteins is to serve as structural components of cells. Proteins make up various structures within cells, such as the cytoskeleton, and help maintain the overall shape and function of cells. Therefore, the correct answer is B Structural components of cells.