Question

if tyler does not eat a diet that includes essential amino acids, his cells will not be able to build
○ nucleic acids.
○ certain proteins.
○ cell membranes.
○ certain carbohydrates.

Explanation:

1. Recall the role of amino acids: Amino acids are the building blocks of proteins. Essential amino acids are those that the body cannot synthesize and must be obtained from the diet.
2. Analyze each option:

• Nucleic acids (like DNA, RNA) are built from nucleotides, not amino acids.
• Cell membranes are mainly composed of lipids (phospholipids) and proteins, but the direct building block related to amino acids for membranes is still proteins, but the key here is about what can't be built without essential amino acids. Since proteins require amino acids, and essential ones must be dietary, without them, certain proteins (those requiring essential amino acids) can't be built.
• Cell membranes' main non - protein component is lipids, so lack of amino acids doesn't directly prevent membrane building.
• Carbohydrates are built from monosaccharides (like glucose), not amino acids.

Answer:

B. certain proteins.