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

How many phosphate groups are present in a molecule of adenosine triphosphate (ATP)?

Three

Two

One

Four

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Verified step by step guidance

Step 1: Understand the structure of ATP (adenosine triphosphate). ATP is a nucleotide composed of three main components: an adenine base, a ribose sugar, and three phosphate groups linked in a chain.

Step 2: Recall the naming convention of ATP. The term 'triphosphate' in ATP indicates the presence of three phosphate groups. This is a key clue in the problem.

Step 3: Visualize or draw the molecular structure of ATP. The three phosphate groups are connected sequentially to the ribose sugar via phosphoanhydride bonds.

Step 4: Compare the options provided in the question. The correct answer must match the number of phosphate groups in ATP, which is three.

Step 5: Confirm your understanding by reviewing the role of ATP in biochemistry. ATP is a primary energy carrier in cells, and the energy is stored in the bonds between the phosphate groups, particularly the terminal phosphate bond.