Table of contents

1. Matter and Measurements4h 31m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 27m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

19. Enzymes

Intro to Enzymes

GOB Chemistry

19. Enzymes

Intro to Enzymes

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4:34 minutes

Problem 84(2)

Textbook Question

Match the terms (2) enzyme with the following descriptions:
a. has a tertiary structure that recognizes the substrate
b. is the combination of an enzyme with the substrate
c. has a structure that fits the active site of an enzyme

Verified step by step guidance

Step 1: Understand the key terms in the problem. An enzyme is a biological catalyst that speeds up chemical reactions in living organisms. It has a specific three-dimensional structure, including an active site where the substrate binds.

Step 2: Analyze description (a): 'has a tertiary structure that recognizes the substrate.' This refers to the enzyme itself, as its tertiary structure determines the shape of the active site, which is specific to the substrate.

Step 3: Analyze description (b): 'is the combination of an enzyme with the substrate.' This describes the enzyme-substrate complex, which forms when the substrate binds to the enzyme's active site.

Step 4: Analyze description (c): 'has a structure that fits the active site of an enzyme.' This refers to the substrate, which is the molecule that the enzyme acts upon and is specifically shaped to fit into the enzyme's active site.

Step 5: Match the terms to the descriptions: (a) corresponds to the enzyme, (b) corresponds to the enzyme-substrate complex, and (c) corresponds to the substrate.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Enzyme Structure

Enzymes are biological catalysts that speed up chemical reactions in living organisms. They have a specific three-dimensional structure, often described as having a tertiary structure, which is crucial for their function. This structure allows enzymes to recognize and bind to specific substrates, facilitating the conversion of substrates into products.

Active Site

The active site of an enzyme is a specially shaped region that binds to the substrate. This site is complementary in shape to the substrate, allowing for a precise fit, much like a key fits into a lock. The interaction at the active site is essential for the enzyme's catalytic activity, as it lowers the activation energy required for the reaction.

Enzyme-Substrate Complex

The enzyme-substrate complex is formed when an enzyme binds to its substrate at the active site. This temporary complex is crucial for the catalytic process, as it stabilizes the transition state and facilitates the conversion of substrates into products. Understanding this concept is key to grasping how enzymes function in biochemical reactions.

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