enzymes (types of enzymes etc)

Question 1

describe what an enzyme is and its role

Answer 1

an enzyme is a biological catalyst which speeds up the rate of reaction without being used or changed in the process

Question 2

what is the active site on an enzyme?

Answer 2

its where the substrate attches to

Question 3

Why must substrates be specific

Answer 3

As the active sites of enzymes are specific, so substrate has to fit perfectly into the active site

Question 4

what is the active site on an enzyme?

Answer 4

its where the substrate attaches to

Question 5

what are proteins

what enzymes break down proteins, and where are they found

Answer 5

proteins - long chains of amino acids

protease

found in stomach, small intenstine and pancreas

Question 6

Explain the process protease under go’s to digest protein

Answer 6

protease converts protein back into individual amino acids, which is then absorbed into blood stream

when amino acids are absorbed by body cells, they are joined together in a different order to make human proteins

Question 7

what is starch

Answer 7

chain of glucose molecules

Question 8

what enzymes break down carbohydrates (like starch)

Answer 8

they are broken down by carbohydrase’s

in case of starch this specific enzyme is called amylase

Question 9

what is produced when carbohydrates are broken down

Answer 9

when carbohydrates (like starch) are digested, simples sugars are produced

Question 10

where is amalyse found

Answer 10

saliva and pancreatic fluid

Question 11

structure of lipids

Answer 11

molecule of glycerol attached to 3 fatty acids

Question 12

what are lipids digested by, and what do they produce

Answer 12

digested by enzyme lipase, produces glycerol and fatty acids