Health and lifestyle nutrients and enzymes

Question 1

what is an enzyme?

Answer 1

an enzyme is a special protein that break larger molecules of foods into smaller molecules of food

they are also known as biological catalysts-they speed digestion up

Question 2

what type of enzyme is carbohydrase?

Answer 2

starch e.g sugar

Question 3

what type of enzyme is protease?

Answer 3

amino acids

Question 4

what type of enzyme is lipease?

Answer 4

lipids such as fatty acids and glycerol

Question 5

How do you find starch?

Answer 5

add a few drops of iodine solution to the food solution

turns blue black if present

Question 6

How do you find sugar?

Answer 6

add a few drops of benedicts solution and heat the solution in a water bath

if it turns red-orange sugar is present

Question 7

How do you find protein?

Answer 7

add a few drops of copper sulfate solution and sodium hydroxide solution

if it turns purple then food contains protein

Question 8

How do you find lipids?

Answer 8

add a few drops of ethanol to the food solution , shake it and leave leave for 1 minute then pour the ethanol into a test tube of water

turns cloudy if present