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 four elements are the most abundant in living organisms?

Carbon, Hydrogen, Oxygen, Nitrogen

Carbon, Nitrogen, Sulfur, Phosphorus

Carbon, Hydrogen, Oxygen, Phosphorus

Hydrogen, Oxygen, Calcium, Potassium

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Verified step by step guidance

Understand that the question is asking about the most abundant elements in living organisms, which are essential for life processes and biomolecules.

Recall that the major biomolecules in living organisms include carbohydrates, lipids, proteins, and nucleic acids. These biomolecules are primarily composed of Carbon (C), Hydrogen (H), Oxygen (O), and Nitrogen (N).

Recognize that Carbon is the backbone of organic molecules, Hydrogen and Oxygen are key components of water and organic compounds, and Nitrogen is essential for amino acids and nucleotides.

Eliminate incorrect options by identifying elements that are less abundant or not as universally essential in living organisms, such as Sulfur, Phosphorus, Calcium, and Potassium.

Select the correct answer based on the understanding that Carbon, Hydrogen, Oxygen, and Nitrogen are the four most abundant elements in living organisms.