Table of contents

1. Introduction to Biochemistry4h 34m
2. Water3h 23m
3. Amino Acids8h 10m
4. Protein Structure10h 4m
5. Protein Techniques14h 5m
6. Enzymes and Enzyme Kinetics13h 38m
7. Enzyme Inhibition and Regulation 8h 42m
8. Protein Function 9h 41m
9. Carbohydrates7h 49m
10. Lipids5h 49m
11. Biological Membranes and Transport 6h 37m
12. Biosignaling9h 45m
Review 1: Nucleic Acids, Lipids, & Membranes2h 47m
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway3h 12m
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism2h 26m
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m

3. Amino Acids

Amino Acid Groups

Biochemistry

3. Amino Acids

Amino Acid Groups

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Multiple Choice

Which four types of atoms are found in all standard amino acids?

Carbon, oxygen, phosphorus, and nitrogen

Carbon, hydrogen, oxygen, and nitrogen

Carbon, hydrogen, sulfur, and nitrogen

Hydrogen, oxygen, sulfur, and phosphorus

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Verified step by step guidance

Understand the structure of standard amino acids: All standard amino acids share a common structure consisting of a central carbon atom (α-carbon) bonded to four groups: an amino group (-NH₂), a carboxyl group (-COOH), a hydrogen atom, and a variable side chain (R group).

Identify the atoms present in the amino group (-NH₂): This group contains nitrogen (N) and hydrogen (H).

Identify the atoms present in the carboxyl group (-COOH): This group contains carbon (C), oxygen (O), and hydrogen (H).

Recognize that the α-carbon is bonded to a single hydrogen atom, contributing another hydrogen (H) to the structure.

Conclude that the four types of atoms found in all standard amino acids are carbon (C), hydrogen (H), oxygen (O), and nitrogen (N), as these are present in the amino group, carboxyl group, and the α-carbon structure.