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

2. Water

Properties of Water

Biochemistry

2. Water

Properties of Water

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Multiple Choice

Inorganic carbon such as CO$_2$ differs from organic carbon because:

it is always found in living organisms.

it forms large, complex macromolecules.

it does not contain carbon-hydrogen (C–H) bonds.

it is insoluble in water.

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Verified step by step guidance

Understand the distinction between inorganic and organic carbon. Organic carbon compounds typically contain carbon-hydrogen (C–H) bonds, whereas inorganic carbon compounds do not.

Recognize that CO$_2$ (carbon dioxide) is an example of inorganic carbon. It lacks C–H bonds and consists of one carbon atom double-bonded to two oxygen atoms.

Evaluate the options provided in the problem. The first option, 'it is always found in living organisms,' is incorrect because inorganic carbon can exist outside living organisms, such as in the atmosphere or dissolved in water.

Analyze the second option, 'it forms large, complex macromolecules.' This is incorrect because inorganic carbon compounds like CO$_2$ are simple molecules and do not form macromolecules.

Confirm the correct answer: 'it does not contain carbon-hydrogen (C–H) bonds.' This is the defining characteristic of inorganic carbon, distinguishing it from organic carbon compounds.