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 of the following structures is NOT a carbohydrate?

Glucose ($C_6H_{12}O_6$)

Cellulose (a polymer of glucose)

Sucrose ($C_{12}H_{22}O_{11}$)

Cholesterol ($C_{27}H_{46}O$)

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Verified step by step guidance

Step 1: Understand the definition of carbohydrates. Carbohydrates are organic molecules composed of carbon (C), hydrogen (H), and oxygen (O) in a specific ratio, typically following the general formula (CH₂O)_n, where 'n' is a whole number.

Step 2: Analyze the molecular formula of glucose ($C_6H_{12}O_6$). It fits the general carbohydrate formula (CH₂O)_n, where n = 6, making it a carbohydrate.

Step 3: Examine cellulose, which is a polymer of glucose. Since it is made up of repeating glucose units, it is also classified as a carbohydrate.

Step 4: Look at sucrose ($C_{12}H_{22}O_{11}$). It is a disaccharide formed by the combination of glucose and fructose, and its molecular formula aligns with the carbohydrate definition.

Step 5: Evaluate cholesterol ($C_{27}H_{46}O$). Its molecular formula does not follow the (CH₂O)_n pattern, and it is classified as a lipid, not a carbohydrate. Therefore, cholesterol is the correct answer as it is NOT a carbohydrate.