Enzymes Unit: Ecology.

Slides:



Advertisements
Similar presentations
Enzymes.
Advertisements

Enzymes a special type of protein.
Enzymes Enzymes Enzymes: are proteins made of amino acids.Enzymes: are proteins made of amino acids. -Catalyst: they speed up chemical reactions & lower.
Enzymes Mrs. Harlin Explain how enzymes act as catalysts for biological reactions.
Enzymes Objective 2.01 Functions of Enzymes How Enzymes Work.
What are the factors affecting Enzyme Activity?. Recap.
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!
Homeostasis of Enzymes What is an enzyme? How do enzymes work? What factors can effect enzyme action?
Explain how enzymes function as catalysts.
When reactions don’t happen fast enough… Your body calls in.
Chemical Reactions & Enzymes
Enzymes Enzymes are proteins Enzymes are biological catalysts
You’re eating a carrot… 1. you begin to chew (manual breakdown) 2. you are salivating as you chew  Amylase in salvia  Amylase is a digestive enzyme classified.
Enzymes.
Unit 2, lesson 4.  A type of protein  Function as catalysts- substances that speed up chemical reactions  Enzymes are not changed or used up by the.
Protein Structure Primary - sequence of amino acids Secondary – folding into pleated sheets or alpha helix Tertiary – 3-D structure, completely folded.
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.
How enzyme function.
Chemical Reactions Make Life Possible! Chemical Reactions Proceed as Follows: ReactantsProducts Energy must be added to “activate” the reaction and break.
Enzymes Special proteins Increase the speed of biochemical reactions (catalysts) Lower the activation energy of chemical reactions Usually end in “ ase.
 Enzymes are Proteins o Made at ribosome o Monomer: AA o Peptide bonds.
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.
Warm-up: August 27, 2012 Make sure your pH lab is completed and turned in, IF YOU HAVE NOT ALREADY.
Proteins and Enzymes: Life Functions Chemistry of Life Notes Part 4.
PROTEINS Proteins Composed mainly of –Carbon –Hydrogen –Nitrogen.
Proteins & Enzymes.
Very important proteins
Enzymes.
Chemistry of Living Things
We couldn’t live with out them!
Enzymes.
Enzymes.
ENZYMES are proteins that catalyze [start/speed up] chemical reactions
Enzymes: Biological Catalysts
ENZYMES Biological catalysts.
Enzymes: Specialized Protein molecules
Enzymes – The Amoeba Sisters
What is an enzyme? Enzymes are proteins, which means they are organic.
Catalysts speed up the rate of the reaction.
Enzymes: “Helper” Protein molecules
Functions of Enzymes How Enzymes Work
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.
Notes – Enzymes.
Biochemistry Enzymes.
Enzymes Page 23.
Enzymes.
Sec 2.3 Chemical Reactions and Enzymes
National 4/5 Biology Properties of enzymes.
A catalyst lowers activation energy.
Enzymes.
Enzymes.
Enzymes.
Enzymes a special type of protein.
Enzymes.
Enzymes Foldable Notes.
TSW identify the structure and function of an enzyme
8.5 Enzyme Activity Enzyme Action
Enzymes.
Enzyme-Substrate Complex
Enzymes SPI Describe how enzymes control chemical reaction in the body.
Enzymes.
Chemistry of Living Things
What DNA sequence codes for this chain of amino acids...?
Learning Objectives Define the following terms: enzyme, chemical reaction, reactant, product, activation energy, catalyst, enzyme-substrate complex. Describe.
Enzymes.
Enzymes.
Presentation transcript:

Enzymes Unit: Ecology

Enzymes are… Proteins -made of amino acids -shape is important!

Enzymes are… 2. Catalysts -speed up chemical reactions

Enzymes are… 3. Specific -shape “fits” with a specific substrate

Enzymes are… 4. Reusable -after a chemical reaction, they can be used again

Enzymes can be… Denatured Which means they do not work anymore because their shape is changed. Caused by change in: Temperature pH

Product- what you end with, what the substrate turns into (ex Product- what you end with, what the substrate turns into (ex. Water and oxygen) Substrate- what an enzyme works on (ex. Hydrogen peroxide) Active site- where the enzyme and substrate fit together Enzyme- provides a place for the chemical reaction and therefore lowers the activation energy (Ex. Catalase) Enzyme-Substrate Complex *Enzyme can be reused!! Because it does not change