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

1. Introduction to Biochemistry

Characteristics of Life

Biochemistry

1. Introduction to Biochemistry

Characteristics of Life

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Multiple Choice

Which of the following lists contains the four most-abundant elements found in biomolecules?

Oxygen, Nitrogen, Sodium, Chlorine

Carbon, Phosphorus, Sulfur, Nitrogen

Carbon, Hydrogen, Oxygen, Nitrogen

Hydrogen, Oxygen, Calcium, Potassium

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Verified step by step guidance

Step 1: Understand the context of the question. Biomolecules are the molecules essential for life, such as proteins, carbohydrates, lipids, and nucleic acids. These molecules are primarily composed of certain key elements.

Step 2: Recall the four most-abundant elements in biomolecules. These elements are Carbon (C), Hydrogen (H), Oxygen (O), and Nitrogen (N). They are fundamental to the structure and function of biomolecules.

Step 3: Analyze the options provided. Compare each list to the known four most-abundant elements in biomolecules: Carbon, Hydrogen, Oxygen, and Nitrogen.

Step 4: Eliminate incorrect options. For example, Sodium, Chlorine, Calcium, Potassium, Phosphorus, and Sulfur are important in biological systems but are not among the four most-abundant elements in biomolecules.

Step 5: Identify the correct answer. The list containing Carbon, Hydrogen, Oxygen, and Nitrogen matches the four most-abundant elements found in biomolecules.