Aim: What are enzymes? I. Enzymes (Organic Catalysts) – proteins that change the rate of a...

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Transcript of Aim: What are enzymes? I. Enzymes (Organic Catalysts) – proteins that change the rate of a...

Page 1: Aim: What are enzymes? I. Enzymes (Organic Catalysts) – proteins that change the rate of a chemical reaction (usually speeds it up). A. Characteristics.
Page 2: Aim: What are enzymes? I. Enzymes (Organic Catalysts) – proteins that change the rate of a chemical reaction (usually speeds it up). A. Characteristics.

Aim: What are enzymes?

I. Enzymes (Organic Catalysts) – proteins that change the rate of a chemical reaction (usually speeds it up).

A. Characteristics of Enzymes

1. Enzymes are specific – they have specific shapes and only work on particular substrates.

Page 3: Aim: What are enzymes? I. Enzymes (Organic Catalysts) – proteins that change the rate of a chemical reaction (usually speeds it up). A. Characteristics.

a. Substrate – the substance an enzyme acts upon. Ex: The enzyme maltase only works on the substrate maltose.

2. Enzymes are named after the substrate they act upon. Ex: Lactase works on lactose, lipase works on lipids, and etc.

ASE ending

Page 4: Aim: What are enzymes? I. Enzymes (Organic Catalysts) – proteins that change the rate of a chemical reaction (usually speeds it up). A. Characteristics.

3. Enzyme Substrate Complex – when enzyme and substrate are fitted together to perform a reaction.

Page 5: Aim: What are enzymes? I. Enzymes (Organic Catalysts) – proteins that change the rate of a chemical reaction (usually speeds it up). A. Characteristics.

a.The substrate changes in a specific way.

b.The enzyme does not change and can be used over and over to work on the same substrate.

4. Lock and Key Model – The fit of the substrate in the active site resembles the fit of a key in a lock.

Page 6: Aim: What are enzymes? I. Enzymes (Organic Catalysts) – proteins that change the rate of a chemical reaction (usually speeds it up). A. Characteristics.

Why can’t Lipase work on Maltose?

Which enzyme would work on the substrate sucrose?

What is the Lock and Key Model?


GENERAL CHEM: INTRO TO ENZYMES - STEMPREP 2013€¦ · –Enzymes and catalysts both affect the rate of a reaction. –Neither catalysts nor enzymes are consumed in the reactions

GENERAL CHEM: INTRO TO ENZYMES - STEMPREP 2013€¦ · –Enzymes and catalysts both affect the rate of a reaction. –Neither catalysts nor enzymes are consumed in the reactions

Enzymes. Characteristics of Enzymes Proteins Catalysts –Speed up chemical reactions without being used up.

Enzymes. Characteristics of Enzymes Proteins Catalysts –Speed up chemical reactions without being used up.

2.5 Enzymes KEY CONCEPT Enzymes are catalysts for chemical reactions in living things.

2.5 Enzymes KEY CONCEPT Enzymes are catalysts for chemical reactions in living things.

AP Biology Enzymes. AP Biology Enzymes Biological catalysts Catalysts – speed up reactions (not all catalysts are enzymes) Enzymes are proteins.

AP Biology Enzymes. AP Biology Enzymes Biological catalysts Catalysts – speed up reactions (not all catalysts are enzymes) Enzymes are proteins.

Enzymes: Biological Catalysts

Enzymes: Biological Catalysts

KEY CONCEPT Enzymes are catalysts for chemical reactions ...€¦ · Enzymes are catalysts for chemical reactions in living things. 2.5 Enzymes ! A catalyst lowers activation energy.

KEY CONCEPT Enzymes are catalysts for chemical reactions ...€¦ · Enzymes are catalysts for chemical reactions in living things. 2.5 Enzymes ! A catalyst lowers activation energy.

Enzymes as Biological Catalysts - WordPress.com

Enzymes as Biological Catalysts - WordPress.com

Common features for enzymes and inorganic catalysts:

Common features for enzymes and inorganic catalysts:

Enzymes are ORGANIC CATALYSTS! Enzymes are proteins (made up of amino acids) Enzymes function by lowering the activation energy of reactions. Enzymes.

Enzymes are ORGANIC CATALYSTS! Enzymes are proteins (made up of amino acids) Enzymes function by lowering the activation energy of reactions. Enzymes.

2.5 Enzymes KEY CONCEPT Enzymes are Protein Catalysts.

2.5 Enzymes KEY CONCEPT Enzymes are Protein Catalysts.

Chapter 5: Enzymes. Enzymes are Biological Catalysts What are enzymes? Biological catalysts made up of protein which alter rate of chemical reaction without.

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Enzymes: The Catalysts of Life - Warner Pacific Collegeclasspages.warnerpacific.edu/BDupriest/BIO 330/Ch 6 Enzymes.pdf · © 2012 Pearson Education, Inc. Enzymes as Biological Catalysts

Enzymes: The Catalysts of Life - Warner Pacific Collegeclasspages.warnerpacific.edu/BDupriest/BIO 330/Ch 6 Enzymes.pdf · © 2012 Pearson Education, Inc. Enzymes as Biological Catalysts

Enzymes: The Biological Catalysts...Enzymes •Enzymes are biological catalysts that increase the reaction rate of biochemical reactions. 4 Characteristics of enzymes A. Made of proteins

Enzymes: The Biological Catalysts...Enzymes •Enzymes are biological catalysts that increase the reaction rate of biochemical reactions. 4 Characteristics of enzymes A. Made of proteins

Enzymes as Biological Catalysts

Enzymes as Biological Catalysts

Enzymes. GENERAL FEATURES Enzymes are biological catalysts that speed up biochemical reactions.

Enzymes. GENERAL FEATURES Enzymes are biological catalysts that speed up biochemical reactions.

ENZYMES BY DR. MARYJANE. INTRODUCTION Enzymes are biological, organic catalysts produced by the body. Catalysts are substances that increase the speed.

ENZYMES BY DR. MARYJANE. INTRODUCTION Enzymes are biological, organic catalysts produced by the body. Catalysts are substances that increase the speed.

Enzymes: Basic Concepts and Kinetics Protein catalysts.

Enzymes: Basic Concepts and Kinetics Protein catalysts.

Enzymes. What are enzymes? Chemically, enzymes are proteins. They act as catalysts in chemical reactions. The substances on which enzymes act are.

Enzymes. What are enzymes? Chemically, enzymes are proteins. They act as catalysts in chemical reactions. The substances on which enzymes act are.

What’s an Enzyme? 1.Enzymes are proteins. 2.Enzymes are catalysts. Catalysts speed up chemical reactions End in –ase (Ex: sucrase, catalase) Without.

What’s an Enzyme? 1.Enzymes are proteins. 2.Enzymes are catalysts. Catalysts speed up chemical reactions End in –ase (Ex: sucrase, catalase) Without.

Enzymes INB Pg 20. Enzymes are protein molecules that act as biological catalysts Catalyst: molecule that speeds up a chemical reaction and remains.

Enzymes INB Pg 20. Enzymes are protein molecules that act as biological catalysts Catalyst: molecule that speeds up a chemical reaction and remains.