'Key model' diaporamas de présentation

Unit 7: Nucleic Acids and Proteins

Unit 7: Nucleic Acids and Proteins. Lesson 7.5 Proteins. Primary- order of individual amino acids Secondary- helix or pleated sheet, due to hydrogen bonds. Tertiary- asymmetrical, cluster-like shape, due to bonding occurrences between R groups.

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Enzyme Catalysis

Enzyme Catalysis. Enzyme : A biological catalyst. With the exception of some RNAs that catalyze their own self-cleavage, all enzymes are proteins. Enzymes can increase the rate of a reaction by a factor of 10 9 to 10 20 over an uncatalyzed reaction.

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Generic and Practical Resettable Zero-Knowledge in the Bare Public-Key Model Moti Yung

Generic and Practical Resettable Zero-Knowledge in the Bare Public-Key Model Moti Yung RSA Laboratories and CS Dept. of Columbia University Yunlei Zhao Software School, Fudan University, Shanghai, P. R. China. 1. Resettable Zero-Knowledge RZK.

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Enzymes

Enzymes. identify the role of enzymes in metabolism, describe their chemical composition and use a simple model to describe their specificity on substrates. What are they?.

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Cell processes

Cell processes. Enzyme activity. Amino acids Protein Enzyme Catalyst Metabolism Anabolism Catabolism Active site Substrate. Lock-and-key model Induced fit model Denature pH scale saturation point Co-factors Co-enzymes Inhibitor Optimum temperature.

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Enzyme catalysis

Enzyme catalysis. a.a. 2015/2016. Programme. Introduction. Basic principles of chemical kinetics. Enzyme kinetics. Simple inhibition systems. Reactions of more than one substrate. Effect of pH and temperature on enzyme activity. Multisite and allosteric enzymes. Textbooks.

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Enzymes

Enzymes. t eeny, tiny m olecular m achines that can do everything- more efficiently Energy of activation, substrate, enzyme substrate complex, Lock and key model, active site. Enzymes. Catalyst. Sensitivity pH, Temp, Heat, Salt. Lowers the energy of activation of a chemical reaction.

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

KEY CONCEPT Enzymes are catalysts for chemical reactions in living things. A catalyst lowers activation energy. Catalysts are substances that speed up chemical reactions. decrease activation energy increase reaction rate.

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Enzymes

Enzymes. t eeny, tiny m olecular m achines that can do everything- more efficiently Energy of activation, substrate, enzyme substrate complex, Lock and key model, active site. Enzyme. A. B.

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Anti-Lock Braking System

Anti-Lock Braking System. ABS1 Presenter: Josh Walworth Demo Given by: Ryan Stephenson. Unique Feature: Partitions. Two distinct functional divisions Suggested by specifications Manifested in diagrams and prototype Components: Vehicle Anti-Lock Braking System.

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HUMAN PHYSIOLOGY

HUMAN PHYSIOLOGY. Objectives: Define homeostasis Describe mechanisms used by the human body to maintain balance Identify how the body uses these mechanisms to maintain homeostasis. HOMEOSTASIS. Tendency towards a relatively stable state or equilibrium (balance) Examples:

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Enzymes

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. Proteins Catalysts Speed reactions Work fast Denature at high temp. Properties of Enzymes. Enzyme-Substrate complex. Active site = where the substrate

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Enzyme Review

Enzyme Review. What Are Enzymes?. Enzymes are Proteins that speed up chemical reactions. They act as Catalysts to break and form bonds when molecules interact End in - ase. 2. Enzyme Structure. The substance an enzyme acts on is the substrate

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Lock and Key Model

Lock and Key Model. Objectives Define the Lock and Key Model 2. Provide specific examples of how the lock and key model is used 3. Describe how scientists use this information to create new therapies and drugs. Lock and Key Model Defined.

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The lock and key model

The lock and key model.

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Sketch Assignment- Due Tuesday 0820

Sketch Assignment- Due Tuesday 0820. Be sure to label EACH of your drawings. Chapter 2 Sections 2-4 -A molecule of water showing the polarity -Figure 2.9- Be sure to create a picture that YOU understand

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