'Enzymes work' diaporamas de présentation

Chapter 10

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Chapter 6 Enzymes

Lehninger Principles of Biochemistry, Fourth Edition, 2005. Chapter 6 Enzymes. ????? ??????? ??? ?? Mar. 27, 2007 . There are two fundamental conditions for life:. First, the living entity must be able to self-replicate ;

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Types of Organic compounds

Types of Organic compounds. Four major groups of organic compounds, necessary for life are: polymers monomers Carbohydrates monosacchrides Lipids fatty acids Proteins amino acids Nucleic acids nucleotides. Carbohydrates.

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Biochemistry

Biochemistry. Chapter 21. Elements in the body. About 96% of the mass of the human body is made up of 4 elements Oxygen 65% carbon 18% hydrogen 10% nitrogen 3% The only other elements that make up a significant portion are: Calcium 1.5% Phosphorus 1.2%. Water.

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Bio molecules

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Enzymes

Enzymes . Chemical Reaction. Occurs when bonds are broken or formed to create a new substance. Reactants Products PB + J + Bread ? PB&J Sandwich. Metabolism. Sum of all chemical reactions in living things.

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Biology 201 Enzymes

Biology 201 Enzymes. What are Enzymes?. Enzymes are catalysts. A catalyst is a substance which increases the rate of chemical reaction Catalysts themselves are NOT used up Used in living organisms Reactions must occur at body temp and atmospheric pressure (LOW) ?

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Membranes & Diffusion ( last outline) Thurs 9 / 10 /13

Membranes & Diffusion ( last outline) Thurs 9 / 10 /13. membranes diffusion & facilitated diffusion osmosis , active transport, endocytosis & exocytosis Basic energy concepts conservation, chemical energy, activation energy enzymes ATP - energy molecule Redox reactions.

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Enzyme Reactions

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Essential Question: What is the function of an enzyme?

? HAPPY THURSDAY ? Grades are posted in the back. Bellwork: Summarize what you have learned about nucleic acids and proteins in 34 words. In your summary, you must use the words: nucleic acids DNA nucleotides amino acids. Essential Question: What is the function of an enzyme?. REMINDERS.

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DO NOW:

DO NOW:. Take papers from side counter Write down your homework Try the Analyzing pH worksheet. Homework: NONE. Enzymes!. For example: Enzymes in stomach called PEPSIN help digest proteins you eat Enzymes in tears called LYSOZYME help prevent infections by breaking down bacteria

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Enzymes

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Activity 11

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Please Take out the Following

Please Take out the Following. Pencil Science Journal Agendas Macromolecules Worksheet (Pass it forward if you have not done so already). Plan for the week. Science Question of the Day.

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Enzymes

Enzymes. Enzymes are proteins that speed up biological chemical reactions. without themselves being used up in the process. Thus they are biological catalysts. They can be used over and over and over again. All chemical reactions involve a change in energy.

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Revision lesson on enzymes

Revision lesson on enzymes. AQA Unit 2 Additional Biology. What are enzymes and what do they do?. Enzymes are- Protein molecules (made up of amino acids) Biological catalysts (Increase the speed of chemical reactions) Specific (Each one catalyses one particular reaction)

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General Features of Enzymes

General Features of Enzymes. Most biological reactions are catalyzed by enzymes Most enzymes are proteins Highly specific (in reaction & reactants ) Involvement of cofactor or coenzyme in some enzymes (prosthetic groups, holoenzyme, apoenzyme) Activity regulated through

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What are enzymes made of?

What are enzymes made of?. Enzymes are protein molecules, and so are made up of amino acids . Most enzymes contain between 100 and 1,000 amino acids. These amino acids are joined together in a long chain, which is folded to produce a unique 3D structure. Why is shape important?.

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Enzymes

Enzymes. Most enzymes are globular proteins. Active site: the region of an enzyme surface to which a specific set of substrates binds. Substrate : ( the reactant ) a molecule upon which an enzyme acts. A substrate molecule must fit precisely into an active site.

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Enzyme Activity

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