Table of contents

Skip topic navigation

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

5. Protein Techniques

Amino Acid Hydrolysis

Biochemistry

5. Protein Techniques

Amino Acid Hydrolysis

Previous problemNext problem

Struggling with Biochemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

What is the function of ninhydrin?

Cleavage of proteins into free amino acids.

Colorimetric agent to detect amino acids.

Agent to carboxymethylate cysteines.

Serves as the mobile phase in HPLC.

Previous problemNext problem

Verified step by step guidance

Understand the role of ninhydrin in biochemical analysis. Ninhydrin is commonly used in the detection of amino acids.

Recognize that ninhydrin reacts with free amino acids to produce a colored compound, typically purple or blue, which is useful for colorimetric detection.

Consider the context in which ninhydrin is used: it is often applied in chromatography and other analytical techniques to visualize amino acids.

Differentiate between the options given: ninhydrin is not used for cleaving proteins, carboxymethylating cysteines, or as a mobile phase in HPLC.

Conclude that the primary function of ninhydrin is as a colorimetric agent to detect amino acids, which aligns with its chemical properties and common applications.