ENZYME 1.Enzymes are globular proteins that works as catalyst of chemical reactions. 2.They speed up chemical reactions without being altered themselves.

Slides:

Advertisements

Similar presentations

Chemical Reactions and Enzymes

Advertisements

Enzymes A Cell’s Catalysts Credit picture: Mirjam Czjzek.

Topic 2.5 Enzymes IB Biology S. Dosman.

ENZYMES Ms. Mezzetti Biology Lynn English High School

Enzymes Describe the structure of an enzyme State the three stages of enzyme activity Explain the factors that affect enzyme activity Describe how enzymes.

Topic 3.6 Enzymes. Define enzyme and active site  Enzyme – protein catalysts that speed up the rate of chemical reactions  Active Site - part of an.

Enzymes Mrs. Harlin Explain how enzymes act as catalysts for biological reactions.

Understanding Enzymes Academic Biology. Enzyme A large protein molecule Specific shape with deep folds on its surface Deep folds form pockets called active.

GLOBULAR PROTEIN. » Globular protein » Catalysts which speeds up biological reactions » Unchanged by the reaction » Specific to their substrate » Active.

Enzymes. Learning Target: 1. Recognize enzymes as catalysts: a. Protein molecules that function to lower activation energy (increase rate of a reaction)

1 Enzymes Enzymes Factors Affecting Enzyme Action.

Enzymes AS Unit 1 Introduction Enzymes as Catalysts.

The biological catalyst

METABOLISM. The concept of metabolism Metabolism = all the chemical reactions taken place inside the living organisms Metabolic reactions produce different.

A Lock-and-Key Enzyme Animation. Enzyme Substrate Active Site.

3.6 Enzymes and Chemical Reactions

Enzymes and Chemical Reactions

Enzymes. Energy is necessary for life –Need for it is a characteristic of life –It is the ability to move or change matter –Stored or released by chemical.

What are enzymes??  Enzymes are proteins.  Enzymes speed up chemical reactions.  Biological Catalyst  pH, temperature, and substrate concentration.

 Enzymes – are protein substances that are necessary for most of the chemical reactions that occur in living cells  Enzymes affect the rate or speed.

IB Topic 3 The Chemistry of Life. 3.6 Enzymes Define enzyme & active site. Enzyme: globular protein, accelerates a specific chemical reaction by.

Molecular Biology.  Enzymes are globular proteins that work as catalysts  Catalysts speed up chemical reactions without being altered themselves  Enzymes.

Chemical reactions CO 2 + H 2 O  H 2 CO 3 Reactants: Molecules going into a reaction Products: Molecules coming out of a reaction.

1 Chemical reactions of life Processes of life building molecules synthesis breaking down molecules digestion ++

Enzymes 1. What Are Enzymes? enzymes  Many large proteins are enzymes Catalyst  Act as Catalyst to accelerates (speed up) a reaction 2.

Chemistry of Life Biology chapter 2.4. Enzymes (Proteins)  Enzymes are proteins that act as catalysts in nearly all metabolic processes (essential for.

Enzyme Review Enzyme Review. 2 What Are Enzymes? Enzymes are Proteins that speed up chemical reactions. They act as Catalysts to break and form bonds.

Enzymes. Speed in chemical reactions can be very important. Think of what would happen if the food you just ate takes 3 days to digest. Speed in chemical.

BIOLOGY Protein Structure and Enzymes. What is an Enzyme? Known as a BIOLOGICAL CATALYST Catalyst is something that speeds up a chemical reaction Biological.

Enzymes. Enzymes are Catalysts Catalysts lower the activation energy of a reaction. Catalysts lower the activation energy of a reaction. Makes the reaction.

UNIT 2 Chemistry for Biology ENZYMES. A chemical reaction is the process of a chemical change in which substances change into DIFFERENT substances. Reactant(s)

What is an enzyme? Enzymes are proteins, which means they are organic.

Topic 3: The chemistry of life

Topic 3.6 Enzymes.

Enzymes Page 23.

ENZYMES! Enzymes.

Enzyme Foldable What is an Enzyme? Parts of an Enzyme Enzyme Action

ENZYMES Biology I.

SECTION 2.4: ENZYMES.

Enzyme-Substrate Complex

The most important protein?

Enzyme Reaction Rates -enzymes are also known as biological catalysts

Enzymes Mr. Spoor Biology 1.

The most important protein?

Enzymes Necessary Proteins.

REVISION: PROTEINS & ENZYMES

Enzyme Foldable What is an Enzyme? Parts of an Enzyme Enzyme Action

o They are mainly proteins o They are biological catalysts that speed up the rate of the biochemical reaction.

Enzymes! Make life possible.

Presentation transcript:

ENZYME 1.Enzymes are globular proteins that works as catalyst of chemical reactions. 2.They speed up chemical reactions without being altered themselves. 3.Conventionally we say the enzyme acts on the substrate (S) to yield a product (P) ACTIVE SITE 1.Active site is the region on the surface of the enzyme to which substrate(s) bind and which catalyses the reaction (the conversion of the substrate to the product). Sucrase Substrate Product Define enzyme and active site

3.6.2 Explain enzyme-substrate specificity

3.6.3 Explain the effects of Temperature, pH and Substrate Concentration on enzyme activity

3.6.3 Define denaturation Denaturation is a structural change in a protein that results in the loss (usually permanent) of its biological properties. Enzymes can be denatured by pH and Temperature.

3.6.5 Explain the use of lactase in the production of lactose free milk