Subject SAT (College Board) Biology: Questions 1 of 824
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Question
MCQ▾The element found in all amino acids that is NOT found in carbohydrates is
Choices
| Choice (5) | Response | |
|---|---|---|
| a. | Hydrogen | |
| b. | Oxygen | |
| c. | Nitrogen | |
| d. | Sulphur | |
| e. | Carbon | |
Answer
c.
Explanation
- Nitrogen is the major atom that is present in amino acids that are not present in carbohydrates.
- Amino acids derive their name from the amine group that bonds to one of the four covalent bonds of the central carbon atom.
- The amine group consists of one nitrogen and two hydrogens and is found in all molecules known as amino acids. The amine group forms a peptide bond with the COOH complex of an adjoining amino acid in the construction of a polypeptide.
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