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Enzymes Chapter 6.3 page165
Enzyme Lab Catalase Blood & Liver H 2 O 2 Toxic H 2 O 2 +catalase= H 2 O + O 2
Properties of Enzymes Proteins Catalysts Speed reactions Work fast Denature at high temp
Enzyme-Substrate complex Substrate Active site = where the substrate ( reaction molecule) connects to enzyme Active Site Enzyme
Enzymes remain unchanged! Enzymes are not used up No more substrate = end to the reaction Synthesis or Decomposition reactions Before After
Lock & Key Model One enzyme for every substrate unique fit Substrate Enzyme
Enzymes are pH specific Different enzymes Different body areas Different optimum pH Examples: Stomach= acid pH Mouth= basic pH Stomach Blood Mouth
Enzymes are temperature dependent…... Most at body temperature 37 o C Denature at high temperatures
The Digestion System Ch 35 Guide Mechanical & Chemical Breakdown Of Food for energy.
Chemical Reactions and Enzymes. I. WHAT ARE ENZYMES? Your body has lots of reactions! Enzymes: special protein catalysts that speed up specific reactions.
Enzymes: Helper Protein molecules Chemical reactions of life Processes of life – building molecules synthesis – breaking down molecules digestion ++
Biology I Enzymes: “Helper” Protein molecules Biology I Flow of energy through life Life is built on chemical reactions.
ENZYMES. Enzymes are biological catalysts, which work to speed up a chemical reaction. Without enzymes, several reactions in cells would never occur or.
C-Notes: Enzymes Stnd: BI.1b 9/9/13 Objective: SWBAT recognize that enzymes are proteins that catalyze biochemical reactions in cells.
Noadswood Science, Enzymes & pH To investigate the effect of pH on enzymes Sunday, October 12, 2014.
Enzymes Aims and Objectives: By the end of the session you will be able to: 1.Define what an enzyme is 2.Explain what an enzyme does 3.Name 2 theories.
INVESTIGATING ENZYMES How An Enzyme Works Enzymes in living cells PROTEINSALL LIVING CELLS. Enzymes are PROTEINS which are present in ALL LIVING CELLS.
Biological catalysts Proteins Specific A substance that speeds up a chemical reaction without being used up in the reaction.
Enzymes … what do you know and will find out these next few lessons Lets find out millionaire styley remember the tips from “Mrs B how to answer MCQ”
Proteins and enzymes e: Effect of temperature and pH.
Chemical reactions involve forming or breaking of chemical bonds Na + Cl NaCl Reactants Products The chemicals involvedThe chemicals at the start of.
ENZYMES!. What are Enzymes? PROTEINS! Act as a catalyst to speed up chemical reactions They are NOT permanently changed in the process Reusable! Specific!
Enzymes What are enzymes? Specialized proteins What do they do? They act as catalysts in chemical reactions in our bodies.
3.6: ENZYMES Enzymes- a globular protein that functions as a biological catalyst of chemical reactions (digestion, respiration). They remain unchanged.
Starch—Break It Down! p What is an enzyme? n A protein found in organisms with a specific function. –Examples: Protease breaks down proteins Lipase.
Structure of Enzymes: All enzymes are tertiary globular proteins, where the protein chain is folded back on itself into a spherical or globular shape.
Enzymes What are enzymes? Enzymes are biological catalysts that can change the rate of chemical reactions. R Hardy 2007.
Biochemistry Notes Biochemistry Biochemistry Study of science that explores how properties of CHEMICALS make life possible.
Topics 3.6 and 7.6. the amount of energy released is greater than the activation energy Energy released.
The Chemical Basis of Life. Organic Compounds Compounds containing carbon Compounds containing carbon (Actually contain carbon, hydrogen, and oxygen)
What is chemical digestion? Changing big nutrient molecules into their smaller building blocks REQUIRES ENZYMES Example: Proteins broken down into amino.
Chapter 17 - Chemical Kinetics Mr Nelson. Kinetics Studies the rate at which a chemical process occurs. Besides information about the speed at which reactions.
Enzyme Regulation. Chemical Reactions Thousands of chemical reactions occur in living organisms every second. Energy is required to start each reaction=
Enzymes Chapter 7 Power Point What do enzymes do? Enzymes speed up chemical reactionsEnzymes speed up chemical reactions A candy bar will break down.
STEVENSON PBHS AP Biology. Lab #2: Enzyme Catalysis Introduction: This the first of 12 AP Labs designed to illustrate the themes of this class.
ENZYME ACTIVITY How to interpret enzyme graphs (NEXT SLIDE)
1 Amino Acids, Proteins, and Enzymes Enzymes Enzyme Action Factors Affecting Enzyme Action Enzyme Inhibition.
Enzyme Activity The properties of enzymes related to their tertiary structure.The effects of change in temperature,pH,substrate concentration,and competitive.
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