Catalysts speed up the rate of the reaction.

Slides:

Advertisements

Similar presentations

Enzymes Chapter 6.3 page165.

Advertisements

Enzymes a special type of protein.

Catalysts  speed up the rate of the reaction.  lowers the energy input required for a chemical reaction to happen  remains unchanged at the end of the.

Cells & Enzymes Enzymes Made of protein Present in all living cells Converts substrates into products Biological catalysts Increase the rate of chemical.

Introduction to Enzymes The Chemical Context of Life.

Chapter 5: Enzymes.

Enzymes Enzymes Enzymes: are proteins made of amino acids.Enzymes: are proteins made of amino acids. -Catalyst: they speed up chemical reactions & lower.

Enzymes. Introduction to Enzymes  Chemical reactions all occur at different rates  Some are very quick and some are extremely slow.

Cells & Enzymes Section 2. Catalysts The rate chemical reaction can be speeded up by raising the temperature or adding a catalyst A catalyst is not changed.

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

Biological catalysts IGCSE Biology (Cambridge).  A catalyst is a substance that speeds up the rate of a chemical reaction but is not itself changed by.

Grade 10 - Enzymes Enzyme Action.

What are the factors affecting Enzyme Activity?. Recap.

Any other uses? Washing Detergent  It is a biological catalyst….

Cells & Enzymes Enzymes Made of protein Present in all living cells Converts substrates into products Biological catalysts Increase the rate of chemical.

C astlehead H igh S chool Enzymes We couldn’t live with out them! Intermediate 2.

Control METABOLISM Metabolic reactions can be controlled and sped up by enzymes that lower the activation energy needed. –metabolic reactions would.

What happens to the food that we eat?. IT BREAKS DOWN INTO…. Carbohydrates Proteins Fats NUCLEIC ACIDS!

Starter Activity: Write down as much as you can on a show me board about making proteins.

Homeostasis of Enzymes What is an enzyme? How do enzymes work? What factors can effect enzyme action?

XVII. Enzymes: Special proteins hill.com/sites/ /student_view0/ch apter2/animation__how_enzymes_work.htm l 2.

Enzymes Making Life’s Reactions Possible. Terminology Reactants –The elements or compounds that are involved in a reaction Products - The elements or.

Chemical Reactions and Enzymes What is a chemical reaction? Changes or transforms chemicals into other chemicals Ex: Iron + Oxygen  Iron Oxide (rust)

Enzymes. Chemical Reactions Process that changes one set of chemicals into another set Slow = iron & oxygen = Fast = fireworks RUST.

Cells & Enzymes Converts substrates Present in into products

Control METABOLISM  Metabolic reactions can be controlled and sped up by enzymes  metabolic reactions would be too slow to occur if no enzymes were.

Starter Paramecium is a common freshwater Protista, found in ponds or slow-moving streams. 1. Discuss the relationship between osmosis and contractile.

ENZYMES. There are thousands of reactions that occur within organisms. These reactions would occur very slowly or not at all without enzymes.

 Proteins are composed of smaller units called amino acids.  Amino Acids : Are small compounds that are made of carbon, nitrogen, oxygen, and hydrogen.

Enzymes A quick guide.

Biological catalysts.  Enzymes: proteins inside cells that act as a catalyst.  Proteins = long amino acids chains that are folded into a specific shape.

Biology 1- Enzymes Chapter 2, Section 4. Enzymes are Biological *Catalysts  Catalysts speed up the rate of the reaction.  Catalysts lower the energy.

How enzyme function.

Chemical Reactions Make Life Possible! Chemical Reactions Proceed as Follows: ReactantsProducts Energy must be added to “activate” the reaction and break.

Chemical Reactions and Enzymes. Chemical Reactions A chemical reaction is an interaction between two chemicals. Chemical bonds are either broken or formed.

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.

Chemical Reaction A process that changes one set of substances into a new set of sub. Chem rxns can occur too slowly and need help. Catalyst –speeds up.

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

SOL Addressed: Bio 2.b,c Enzymes Ranny Copenhaver Catalase.

I. Enzymes: Special proteins. catalysts A. Function of enzymes: act as catalysts (which speed up chemical reactions) -Enzymes work by lowering activation.

Biology Enzymes.

Warm-up: August 27, 2012 Make sure your pH lab is completed and turned in, IF YOU HAVE NOT ALREADY.

{ Enzymes We couldn’t live without them! Flow of energy through life - Life is built on chemical reactions.

Biological catalysts Enzymes IGCSE Biology (Cambridge)

Chemical Reactions and Enzymes

Key Area 6: Metabolic Pathways

We couldn’t live with out them!

Biological catalysts Enzymes IGCSE Biology (Cambridge)

Biological catalysts Enzymes.

Metabolic Pathways (a)

Catalysts speed up the rate of the reaction.

Enzymes: Biological Catalysts

Catalysts speed up the rate of the reaction.

Biological catalysts Enzymes.

Enzymes Living organisms are dependent on chemical reactions to survive. These chemical reactions happen TOO SLOWLY or require TOO MUCH ENERGY for us.

Chemistry of Life Enzymes.

ENZYMES Protein catalysts necessary to carry out metabolic reactions in living organisms.

Enzymes Page 23.

Enzymes Unit: Ecology.

National 4/5 Biology Properties of enzymes.

Living Cells Enzymes Mr G Davidson.

Enzymes a special type of protein.

Biological catalysts Enzymes IGCSE Biology (Cambridge)

What DNA sequence codes for this chain of amino acids...?

How Enzymes Work Goals:

Presentation transcript:

Catalysts speed up the rate of the reaction. lowers the energy input required for a chemical reaction to happen remains unchanged at the end of the reaction When you think of a catalyst think of a fire!

Enzymes Enzymes are Biological catalysts https://www.youtube.com/watch?v=XTUm-75-PL4 Enzymes control chemical reactions that take place in the cytoplasm. Catalase in an example of an enzyme made by living cells

Catalase The enzyme catalase breaks down the waste substance hydrogen peroxide into water and oxygen. H2O2 catalase oxygen +water (enzyme) (substrate) (products)

Degradation reactions animation

Synthesis Reaction es Active site

Degradation reactions Starch Maltose

Enzyme activity Temperature and pH affect the activity of an enzyme.

Optimum Condition Enzymes function best or are most active in specific conditions known as optimum conditions.

Degradation reaction Substrate Enzyme Product Used for: Hydrogen peroxide Catalase Oxygen and water Waste product Starch Amylase Maltose Maltase Glucose Protein Pepsin Peptides Protease Amino acids Fats Lipase Fatty Acids and Glycerol

Synthesis reaction Glucose-1-phosphate Starch

Properties of enzymes 1. Speed up reactions. 2. Made of protein. 3. Are specific. 4. Not used up during the reaction. 5. Require optimum conditions at which they work best. 6. At high temperature they become denatured (they break down)

Lock and Key https://www.youtube.com/watch?v=myORDWVzNhc