객관식
The lac repressor is inactivated by binding to which of the following molecules?
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- 1. A Review of General Chemistry6h 57m
- Orgo 1: Pre-Course Review25m
- What is Organic Chemistry?10m
- Atomic Structure24m
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- 16. Conjugated Systems6h 15m
- Conjugation Chemistry13m
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- Reactions at the Allylic Position39m
- Conjugated Hydrohalogenation (1,2 vs 1,4 addition)26m
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- 20. Phenols55m
- 21. Aldehydes and Ketones: Nucleophilic Addition4h 56m
- Naming Aldehydes8m
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- DIBAL5m
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- Cyanohydrin11m
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- Acetal12m
- Acetal Protecting Group16m
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- Imine vs Enamine15m
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- Acid Chloride Nomenclature5m
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- Nucleophilic Acyl Substitution18m
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- Review of Nitriles46m
- 23. The Chemistry of Thioesters, Phophate Ester and Phosphate Anhydrides1h 10m
- 24. Enolate Chemistry: Reactions at the Alpha-Carbon1h 50m
- Tautomerization9m
- Tautomers of Dicarbonyl Compounds6m
- Enolate4m
- Acid-Catalyzed Alpha-Halogentation4m
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- Haloform Reaction8m
- Hell-Volhard-Zelinski Reaction3m
- Overview of Alpha-Alkylations and Acylations6m
- Enolate Alkylation and Acylation12m
- Enamine Alkylation and Acylation16m
- Beta-Dicarbonyl Synthesis Pathway7m
- Acetoacetic Ester Synthesis13m
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- 25. Condensation Chemistry2h 9m
- 26. Amines1h 43m
- 27. Heterocycles2h 0m
- Nomenclature of Heterocycles15m
- Acid-Base Properties of Nitrogen Heterocycles10m
- Reactions of Pyrrole, Furan, and Thiophene13m
- Directing Effects in Substituted Pyrroles, Furans, and Thiophenes16m
- Addition Reactions of Furan8m
- EAS Reactions of Pyridine17m
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- 28. Carbohydrates5h 54m
- Monosaccharide20m
- Monosaccharides - D and L Isomerism9m
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- Mutarotation11m
- Epimerization9m
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- Glycoside6m
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- Disaccharide30m
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- 29. Amino Acids4h 16m
- Proteins and Amino Acids19m
- L and D Amino Acids14m
- Polar Amino Acids14m
- Amino Acid Chart1h 14m
- Acid-Base Properties of Amino Acids33m
- Isoelectric Point14m
- Amino Acid Synthesis: HVZ Method12m
- Synthesis of Amino Acids: Acetamidomalonic Ester Synthesis16m
- Synthesis of Amino Acids: N-Phthalimidomalonic Ester Synthesis13m
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- Reactions of Amino Acids: Esterification7m
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- Reactions of Amino Acids: Ninhydrin Test11m
- 30. Peptides and Proteins2h 42m
- Peptides12m
- Primary Protein Structure4m
- Secondary Protein Structure17m
- Tertiary Protein Structure11m
- Disulfide Bonds17m
- Quaternary Protein Structure10m
- Summary of Protein Structure7m
- Intro to Peptide Sequencing2m
- Peptide Sequencing: Partial Hydrolysis25m
- Peptide Sequencing: Partial Hydrolysis with Cyanogen Bromide7m
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- Merrifield Solid-Phase Peptide Synthesis18m
- 31. Catalysis in Organic Reactions1h 30m
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- 33. The Organic Chemistry of Metabolic Pathways2h 52m
- Intro to Metabolism6m
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- Intro to Citric Acid Cycle7m
- Structures of the Citric Acid Cycle19m
- The Citric Acid Cycle35m
- 34. Nucleic Acids1h 32m
- 35. Transition Metals6h 14m
- Electron Configuration of Elements45m
- Coordination Complexes20m
- Ligands24m
- Electron Counting10m
- The 18 and 16 Electron Rule13m
- Cross-Coupling General Reactions40m
- Heck Reaction40m
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- Suzuki Reaction25m
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- Buchwald-Hartwig Amination Reaction19m
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- Catalytic Allylic Alkylation18m
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- 36. Synthetic Polymers1h 49m
- Introduction to Polymers6m
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- Cationic Polymerization8m
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- Polymer Stereochemistry3m
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- Copolymers6m
- Step-Growth Polymers11m
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- Step-Growth Polymers: Polyurethane Mechanism10m
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- Polymers Structure and Properties8m
3. Acids and Bases
Overview of Chemical Reactions
객관식
Which of the following enzymes can activate a protein by transferring a phosphate group () to it?
A
Ligase
B
Kinase
C
Isomerase
D
Phosphatase
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검증된 단계별 안내1
Understand the role of each enzyme type: Ligase, Kinase, Isomerase, and Phosphatase.
Ligase enzymes are responsible for joining two molecules together, often using ATP. They do not transfer phosphate groups.
Kinase enzymes are responsible for transferring phosphate groups from high-energy molecules like ATP to specific substrates, often proteins, thereby activating or deactivating them.
Isomerase enzymes catalyze the rearrangement of atoms within a molecule, but do not transfer phosphate groups.
Phosphatase enzymes remove phosphate groups from molecules, which is the opposite action of kinases.
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