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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

21. The Generation of Biochemical Energy

Intro to Cofactors

GOB Chemistry

21. The Generation of Biochemical Energy

Intro to Cofactors

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Multiple Choice

Indicate which of the following conditions represents an active enzyme.
I. An enzyme after its release of Cu (I) ion used for catalytic activity.
II. A polypeptide chain that is biologically functional.
III. An enzyme that binds to organic factor in the form of Vitamin B₂.
IV. None of the following

IV only

I and II

II and III

I, II and III

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Verified step by step guidance

Understand that enzymes are biological catalysts that speed up chemical reactions in living organisms. They require specific conditions to be active.

Consider condition I: An enzyme after its release of Cu (I) ion used for catalytic activity. This suggests the enzyme has completed its catalytic function and may not be active anymore.

Consider condition II: A polypeptide chain that is biologically functional. This indicates that the enzyme is in its active form, as enzymes are typically functional polypeptide chains.

Consider condition III: An enzyme that binds to an organic factor in the form of Vitamin B2. This suggests the enzyme is active, as many enzymes require cofactors like vitamins to be functional.

Evaluate the conditions: II and III both describe scenarios where the enzyme is active, while I suggests post-catalytic activity, and IV states none are active, which is incorrect given II and III.