organisation and the digestive system

Question 1

Active site

Answer 1

the site on the enzymes where the reactants bind

Question 2

amino acids

Answer 2

the molecule made up of carbon, hydrogen, oxygen, nitrogen that are the building blocks to proteins

Question 3

amylase

Answer 3

enzymes that speed up the digestion of starch into sugars

Question 4

bile

Answer 4

neutralises stomach acid to give a high pH for the enzymes from the pancreas and small intestine to work well. It is not an enzyme

Question 5

carbohydrase

Answer 5

enzymes that speed up the breakdown of carbohydrates into simple sugars

Question 5

carbohydrates

Answer 5

molecules that contain only carbon, hydrogen, and oxygen. They provide the energy for the metabolism and are found in foods such as rice, potatoes, and bread
catalyst

Question 5

catalyst

Answer 5

a substance that speeds up the rate of another reaction but isn’t used up or changed itself

Question 6

denatured

Answer 6

the breakdown of the molecular structure of a protein so it no longer functions

Question 7

differentiate

Answer 7

the process where cells become specialised for a specific function

Question 8

digestive system

Answer 8

the organ system where food is digested and absorbed

Question 9

enzymes

Answer 9

biological catalyst

Question 9

fatty acids

Answer 9

part of the structure of a lipid molecule

Question 9

lipase

Answer 9

enzymes that break down the lipids into fatty acids and glycerol

Question 10

lipids

Answer 10

includes fat and oils and are found in foods such as butter, olive oil and crisps. They are made of carbon, hydrogen and oxygen

Question 10

glycerol

Answer 10

part of the structure of a lipid molecule

Question 10

metabolism

Answer 10

the sum of all the reactions taking place in a cell or the body of an organism

Question 10

organ

Answer 10

a collection of different tissues working toghether to carry out specific functions

Question 10

organ system

Answer 10

a group of organs that work together to carry out specific funcitons and form organisms

Question 11

proteins

Answer 11

molecules that contain carbon, hydrogen, oxygen and nitrogen and are made of long chains of amino acids. They are used for building the cells and tissues of the body and to form enzymes

Question 11

protease

Answer 11

the enzyme that speed up the break down proteins into amino acids

Question 11

simple sugars

Answer 11

small carbohydrate units for example glucose

Question 12

tissue

Answer 12

a group of specialsed cells with a similar structure and function