4. Proteins and enzymes Flashcards
Hormone
chemical messenger between cells
Structural
provide structure and support to cells and tissues
Enzyme
catalyses chemical reaction
Antibody
destroys pathogens and protect the body from disease
Receptor
receives information from internal and external enviiroment
Enzyme
Enzymes are biological catalysts that speed up a chemical reaction
What happens to enzymes after a reaction
Remains unchanged
Substance upon which a enzyme acts
Substrate
Substance produced as a result of the reaction
Product
Active site
Where the enzyme binds to the substrate
What does an active site form
Enzyme substrate complex which facilitates the reaction
Specificity
Each enzyme only combines with one type of substrate
Types of enzyme reactions
Degradation and synthesis
Degradation reactions
when enzymes break down large molecules to small molecules
Synthesis reactions
when enzymes build up small molecules to large molecules
Catalase reaction
degredation
catalase substrate
hydrogen peroxide
catalase product
oxygen and water
Phosphorylase reaction
synthesis
Phosphorylase substrate
glucose-1-phosphate
phosphorylase product
starch
pepsin reaction
degradation
pepsin substrate
proteins
pepsin product
peptides