BIOLK101 - Lab components

4x objective lens

4mm (4000 micrometres)

10 x

1.6 mm (1600 micrometres)

40 x

0.4 mm (400 micrometres)

100 x

0.16 mm (160 micrometres)

P1000

1000 micrometres, 100 micrometres, 10 micrometres

P200

100 micrometres, 10 micrometres, 1 micrometres

P20

10 micrometres. 1 micrometres, 0.1 micrometres

micro-

10^-6

nano

10^-9

Carbohydrates

hydrocarbon used for energy

benedict’s test

test for monosaccharides/disaccharides

what tests positive on the benedict’s test

glucose/fructose/galactose

What does a positive test of the Benedicts test show?

orange/brick colour

Lugol’s test

complex carbohydrates, amylose and amypectin

Positive Lugol’s test

deep blue/purple colour

Lipids

hydrophobic, dissolves in non polar solvents

Sudan IV test

for lipids

Positive Sudan IV test

red positive test

Protein

amino acids, peptide bonds between NH3 to COOH

Biuret test

test for peptide bonds

Positive biuret test

Purple colour with copper salts