enzymes

Question 1

what is an enzyme

Answer 1

proteins that speed up chemical reactions they are also called biological catalyst
-can be reused
- highly specific
-often end in ‘ase’

Question 2

why are enzymes important?

Answer 2

speed up chemical reactions
-build complex molecules from simpler one(anabolism)
-break down large molecules to small(catabolism)
-allows reaction to occur at a rate that suits body)

Question 3

how do enzymes work?

Answer 3

1- lock and key model
2- induced fit

Question 4

what are the factors that effect enzymes?

Answer 4

concentration gradient
concentration of substrate
removal of products
temperature
ph
co factors
enzyme inhibitors

Question 5

what is activation energy?

Answer 5

energy needed to start a chemical reaction
-enzymes function by lowering activation energy

Question 6

what are the different types of enzymes?

Answer 6

protease- break down proteins(e.g polypeptides to peptides)
amylase- breakdown carbohydrates(e.g. salivary amylase breakdown starch to maltose.)
lipases- breakdown fats(e.g. pancreatic lipase breakdown fats to fatty acids and glycerol)
nucleases- breakdown DNA&RNA