biological molecules

Question 1

which properties of water are because of hydrogen bonds

Answer 1

high latent heat of vaporisation
high specific heat capacity
surface tension
confession
adhesion
ice floats on top creating habitats
good solvent

Question 2

what is a condensation reaction

Answer 2

water is removed and two monomers bond together

Question 3

what is a hydrolysis reaction

Answer 3

water is added and the two monomers break apart

Question 4

type of bond in carbohydrates

Answer 4

glycosidic

Question 5

types of bond in protein

Answer 5

peptide

Question 6

type of bond in lipids

Answer 6

ester

Question 7

type of bond in nucleic acids

Answer 7

phosphodiester

Question 8

how to test for reducing sugars

Answer 8

add benedict’s reagent to a sample solution
heat
if a reducing sugar is present then a coloured precipitate will form
green yellow and orange are low concentration of reducing sugar
brown/ brick red is high

Question 9

test for non reducing sugars

Answer 9

add dilute hydrochloric acid and heat
neutralise with sodium hydrogencarbonate using an indicator
then do benidicts test