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

Nucleic Acids

Biochemistry

1. Introduction to Biochemistry

Nucleic Acids

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Multiple Choice

Which sugar is found in RNA?

Ribose

Glucose

Deoxyribose

Fructose

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Verified step by step guidance

Step 1: Understand the structure of RNA. RNA stands for Ribonucleic Acid, and it is a nucleic acid composed of nucleotides. Each nucleotide consists of three components: a phosphate group, a nitrogenous base, and a sugar molecule.

Step 2: Recall the sugar molecule in RNA. The sugar in RNA is a pentose sugar, meaning it has five carbon atoms. This sugar is essential for forming the backbone of the RNA molecule.

Step 3: Compare the options provided. Glucose and fructose are hexose sugars (six-carbon sugars) and are not part of nucleic acids. Deoxyribose is the sugar found in DNA, not RNA. Ribose is the correct sugar found in RNA.

Step 4: Examine the chemical structure of ribose. Ribose is a five-carbon sugar with the molecular formula C₅H₁₀O₅. It differs from deoxyribose by having a hydroxyl (-OH) group attached to the 2' carbon, which is absent in deoxyribose.

Step 5: Conclude that ribose is the sugar found in RNA, as it is specifically designed to form the backbone of RNA molecules and is distinct from the sugars found in DNA or other biological molecules.