Higher

Question 1

Starch

Answer 1

Iodine solution
turns orange to blue/black

Question 2

Reducing sugars

Answer 2

Benedict soultion
Should turn reddish brown after in boiling bath

Question 3

Protein

Answer 3

Buriet test
Blue to violet

Question 4

Lipids (fats and oils)

Answer 4

Emulsion test
If lipids are present will be indicated by formation of a white emulsion layer at the top of sample

Question 5

Calorimetry

Answer 5

Measuring the energy taken in and given out during a chemical reaction
Use this to measure amount of energy(calories) in food

Question 6

Equation for calorimetery

Answer 6

energy transferred= mass of water x 4.2 x temp increase

Question 7

Diffusion

Answer 7

high to low of particles moving from a high conc to a low conc

Question 8

Osmosis

Answer 8

High to low transfer of water through a parshly permeable membrane

Question 9

Active transport

Answer 9

Low to high movement of substances across a membrane against concentration gradient

Question 10

Percentage change equation used in experiment of loss of mass in potatoes disk

Answer 10

Change in mass / start mass x 100