Table of contents

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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

Nucleic Acids

Biochemistry

1. Introduction to Biochemistry

Nucleic Acids

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Multiple Choice

Which sugar is found in the backbone of RNA molecules?

Fructose

Deoxyribose

Ribose

Glucose

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Verified step by step guidance

Understand the structure of RNA molecules: RNA (ribonucleic acid) is a nucleic acid composed of nucleotides, each consisting of a phosphate group, a nitrogenous base, and a sugar molecule.

Identify the sugar molecule in RNA: The sugar in RNA is a pentose sugar, meaning it has five carbon atoms.

Compare the options provided: Fructose is a hexose sugar (six carbons), glucose is also a hexose sugar, and deoxyribose is the sugar found in DNA, not RNA.

Recognize the unique sugar in RNA: Ribose is the correct sugar found in RNA. It differs from deoxyribose by having a hydroxyl (-OH) group attached to the 2' carbon, which is absent in deoxyribose.

Conclude that ribose is the sugar forming the backbone of RNA molecules, as it is specifically designed to support RNA's structure and function.