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

6. Enzymes and Enzyme Kinetics

Enzyme-Substrate Complex

Biochemistry

6. Enzymes and Enzyme Kinetics

Enzyme-Substrate Complex

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Multiple Choice

Which of the following correctly completes the sentence: "The binds to the site on an enzyme."?

cofactor; regulatory

substrate; active

enzyme; allosteric

product; catalytic

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Verified step by step guidance

Understand the structure and function of an enzyme: Enzymes are biological catalysts that speed up chemical reactions. They have specific regions called active sites where substrates bind and undergo a chemical reaction.

Define the key terms: The 'substrate' is the molecule upon which an enzyme acts. The 'active site' is the specific region on the enzyme where the substrate binds and the reaction occurs.

Analyze the sentence structure: The sentence is describing a relationship between two components of an enzymatic reaction. The blank spaces need to be filled with terms that correctly describe this interaction.

Evaluate the options: (1) Cofactor; regulatory - Cofactors are non-protein molecules that assist enzymes but do not bind to the active site. (2) Substrate; active - This is correct because the substrate binds to the active site. (3) Enzyme; allosteric - Enzymes can have allosteric sites, but this does not fit the sentence structure. (4) Product; catalytic - Products are the result of the reaction and do not bind to the catalytic site.

Conclude that the correct completion of the sentence is: 'The substrate binds to the active site on an enzyme.' This aligns with the fundamental principles of enzyme-substrate interactions.