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

Carbohydrates

Biochemistry

1. Introduction to Biochemistry

Carbohydrates

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Multiple Choice

Which macronutrient is a primary source of energy for high-intensity workouts?

Proteins

Lipids

Nucleic acids

Carbohydrates

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Verified step by step guidance

Understand the role of macronutrients in energy production: Carbohydrates, proteins, and lipids are macronutrients that provide energy, but their utilization depends on the intensity and duration of physical activity.

Learn about carbohydrate metabolism: Carbohydrates are broken down into glucose, which is used in glycolysis to produce ATP, the primary energy currency of the cell. This process is efficient and rapid, making carbohydrates ideal for high-intensity workouts.

Compare energy sources for high-intensity exercise: During high-intensity workouts, the body relies on anaerobic glycolysis, which primarily uses glucose derived from carbohydrates. Proteins and lipids are slower to metabolize and are not the primary energy source in such conditions.

Understand why proteins and lipids are less suitable: Proteins are primarily used for repair and growth, not immediate energy. Lipids are metabolized through beta-oxidation, which is slower and requires oxygen, making them more suitable for low-intensity, long-duration activities.

Conclude that carbohydrates are the primary energy source: Carbohydrates provide quick and efficient energy through glycolysis and are stored as glycogen in muscles, making them the preferred macronutrient for high-intensity workouts.