Enzymes. What is an enzyme? Organic catalyst Protein molecule.

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Enzymes

description

Speed up chemical reactions by lowering the activation energy What is the function of an enzyme?

Transcript of Enzymes. What is an enzyme? Organic catalyst Protein molecule.

Page 1: Enzymes. What is an enzyme? Organic catalyst Protein molecule.

Enzymes

Page 2: Enzymes. What is an enzyme? Organic catalyst Protein molecule.

What is an enzyme?• Organic catalyst• Protein molecule

Page 3: Enzymes. What is an enzyme? Organic catalyst Protein molecule.

Speed up chemical reactions by lowering the activation energy

What is the function of an enzyme?

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Activation Energy

• energy required to start all chemical reaction

• How can all reactions require energy, if some are considered exergonic/exothermic?

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Induced-Fit Model

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Factors that affect enzyme functioning

1. Temperature2. pH 3. Enzyme concentration4. Substrate concentration5. Cofactors/coenzymes6. inhibitors

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Cofactors/Coenzymes

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Feedback Inhibition

• End product controls action of enzyme• When end product binds to enzyme, there is a

change of shape and enzyme no longer functions

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Ch19: Enzymes and Vitamins - Laney College2016/01/30  · Ch19: Enzymes and Vitamins Chem 30B Enzyme Stereospecificity Chiral reactant and chiral molecule Enzyme Classificaon Oxidoreductases

Ch19: Enzymes and Vitamins - Laney College2016/01/30  · Ch19: Enzymes and Vitamins Chem 30B Enzyme Stereospecificity Chiral reactant and chiral molecule Enzyme Classificaon Oxidoreductases

ENZYME ACTIVITY “How do enzymes work?” (NEXT SLIDE)

ENZYME ACTIVITY “How do enzymes work?” (NEXT SLIDE)

Chapter 3 Enzyme. 1.Properties of enzymes 2.Structural features of enzymes 3.Mechanism of enzyme-catalyzed reactions 4.Kinetics of enzyme-catalyzed reactions.

Chapter 3 Enzyme. 1.Properties of enzymes 2.Structural features of enzymes 3.Mechanism of enzyme-catalyzed reactions 4.Kinetics of enzyme-catalyzed reactions.

2 enzymes & enzyme kinetics.ppt

2 enzymes & enzyme kinetics.ppt

1 Amino Acids, Proteins, and Enzymes Enzymes Enzyme Action Factors Affecting Enzyme Action Enzyme Inhibition.

1 Amino Acids, Proteins, and Enzymes Enzymes Enzyme Action Factors Affecting Enzyme Action Enzyme Inhibition.

A single-molecule digital enzyme assay using alkaline ...

A single-molecule digital enzyme assay using alkaline ...

Radical Enzymes - Princeton University …chemlabs.princeton.edu/.../sites/6/Jian_radical_enzymes.pdfRadical Enzymes Definition The term radical enzyme describes those enzymes that

Radical Enzymes - Princeton University …chemlabs.princeton.edu/.../sites/6/Jian_radical_enzymes.pdfRadical Enzymes Definition The term radical enzyme describes those enzymes that

Enzyme Kinetic Zhi Hui. Enzyme Kinetics Enzymes endow cells with the remarkable capacity to exert kinetic control over thermodynamic potentiality Enzymes.

Enzyme Kinetic Zhi Hui. Enzyme Kinetics Enzymes endow cells with the remarkable capacity to exert kinetic control over thermodynamic potentiality Enzymes.

Enzymes: Regulatorychemistry.creighton.edu/~jksoukup/lec10.pdf · Enzymes: Regulatory Regulatory enzymes In a metabolic pathway, which utilizes numerous enzymes, a regulatory enzyme

Enzymes: Regulatorychemistry.creighton.edu/~jksoukup/lec10.pdf · Enzymes: Regulatory Regulatory enzymes In a metabolic pathway, which utilizes numerous enzymes, a regulatory enzyme

ENZYMES ENZYME STRUCTURE ENZYME Enzymes are proteins that speed up chemical reactions. (catalyst) Enzymes are proteins that speed up chemical reactions.

ENZYMES ENZYME STRUCTURE ENZYME Enzymes are proteins that speed up chemical reactions. (catalyst) Enzymes are proteins that speed up chemical reactions.

Enzymes classification of enzyme and -isoenzymes-1

Enzymes classification of enzyme and -isoenzymes-1

+ Factors that Affect Enzyme Activity SBI4U Enzymes.

+ Factors that Affect Enzyme Activity SBI4U Enzymes.

1 Enzymes. Brief introductory enzyme video: Goofy video on how enzymes work: .

1 Enzymes. Brief introductory enzyme video: Goofy video on how enzymes work: .

Enzyme Functions and Regulations 1. Exer Biochem c2-enzyme 2 Enzymes as catalysts Enzymes are proteins that catalyze different chemical reactions that.

Enzyme Functions and Regulations 1. Exer Biochem c2-enzyme 2 Enzymes as catalysts Enzymes are proteins that catalyze different chemical reactions that.

1 Enzymes Enzyme and Digestion film clip Enzyme and Digestion film clip.

1 Enzymes Enzyme and Digestion film clip Enzyme and Digestion film clip.

Enzymes – Enzyme Mechanismdmohnen/bcmb3100/lecture... · 1 1 BCMB 3100 – Chapters 6, 7, 8 Enzymes – Enzyme Mechanism 2 Mechanisms of Enzymes •Energy diagrams •Binding modes

Enzymes – Enzyme Mechanismdmohnen/bcmb3100/lecture... · 1 1 BCMB 3100 – Chapters 6, 7, 8 Enzymes – Enzyme Mechanism 2 Mechanisms of Enzymes •Energy diagrams •Binding modes

ENZYMES Occurrence of Enzyme

ENZYMES Occurrence of Enzyme

Section C - Enzyme C1C2 Introduction to Enzymes C3 Enzyme Kinetics C4 Enzyme inhibition C5 Regulation of Enzyme activity.

Section C - Enzyme C1C2 Introduction to Enzymes C3 Enzyme Kinetics C4 Enzyme inhibition C5 Regulation of Enzyme activity.

12.enzymes and enzyme kinetics.web

12.enzymes and enzyme kinetics.web

1 Chapter 16 Amino Acids, Proteins, and Enzymes 16.6 Enzymes 16.7 Enzyme Action.

1 Chapter 16 Amino Acids, Proteins, and Enzymes 16.6 Enzymes 16.7 Enzyme Action.