Chemicals

Question 0

Monosacorides

Answer 0

Simple sugars

Question 1

Carbohydrates

Answer 1

Carbon
Hydrogen
Oxygen

Question 2

Disaccharides

Answer 2

Two monosaccharides

Question 3

Sweet and dissolve in water

Answer 3

Simple sugar

Question 4

Thousands of monosaccharides = ….

Answer 4

Polysaccharides
Starch, Glucose, Cellulose
Insoluble

Question 5

During digestion…. Is broken down into…..

Answer 5

Polysaccharides into monosaccharides

Question 6

Lipids

Answer 6

Carbon
Hydrogen
Oxygen
Glycerol + 3 fatty acids

Question 7

Proteins

Answer 7

Carbon
Hydrogen
Oxygen
Nitrogen
(Some contain sulphur)
Long chain of monomers to form polymers

Question 8

Protein is…

Answer 8

Long chain of monomers ( amino acids )
Order determines shape
Shape determines function

Question 9

Carbohydrate uses

Answer 9

Exoskeleton
Cell walls
Store energy
Energy respiration

Question 10

Uses of lipids

Answer 10

Oils
Energy
Cell membranes
Makes hormones
Protection
Insulation (heat and electrical)
Respiration

Question 11

Uses of proteins

Answer 11

Antibodies
Muscles (actin & myosin)
Hormones
Enzymes

Question 12

Starch test

Answer 12

Iodine

Brown to blue black

Question 13

Simple sugars (monosaccharides)

Answer 13

Benedict’s solution + heat

Blue solution to brick red/ orange precipitate

Question 14

Protein

Answer 14

Biaret reagent

Blue solution to purple / lilac solution

Question 15

Lipids

Answer 15

Ethanol + water

Colourless solution to cloudy emulation.

Question 16

What are enzymes?

Answer 16

Biological catalysts. Made of protein

Question 17

Enzyme that breaks down starch into glucose

Answer 17

Amylase

Question 18

Enzymes that break large molecules down into smaller ones

Answer 18

Catabolic

Question 19

Enzymes that build small molecules into larger ones

Answer 19

Anabolic

Question 20

Amylase

Answer 20

Salvia glands, pancreas, small intestine wall.

Starch to sugar

Question 21

Proteases

Answer 21

Stomach, pancreas, small intestine wall.

Proteins to amino acids

Question 22

Lipase

Answer 22

Pancreas, small intestine wall.

Lipids to fatty acids and glycerol

Question 23

Enzyme use in the home

Answer 23

Biological washing powders. Proteases and lipases. Cool wash

Question 24

Enzyme uses in industry

Answer 24

Baby food. Proteases. Pre-digests food. Sugar syrup. Carbohydrases starch to glucose. Cheap sweetness, fuel (ethanol) Fructose syrup: Isomerase. Same calories as glucose but much sweeter taste. Used in slimming foods.

Question 25

All carbohydrates are made up of...

Answer 25

Sugars

Question 26

Complex carbohydrates are..

Answer 26

Long chains of simple sugars

Question 27

Enzymes can..

Answer 27

Build large molecules Change one molecule into another Break down large molecules into smaller ones