Saccharides Flashcards Preview

Biology > Saccharides > Flashcards

Flashcards in Saccharides Deck (16):
1

Monomer

the units that are put together to make polymers

2

Polymer

a macromolecule made up of many, repeated subunits

3

Glycosidic bond

the bond formed when 2 monosaccharides join together with a condensation reaction

4

Monosaccharide

A simple sugar consisting of one subunit e.g. glucose/fructose/galactose

5

Disaccharide

A simple sugar consisting of two subunits e.g. lactose/maltose/sucrose

6

polysaccharide

complex carbohydrates consisting of many subunits e.g. starch/cellulose/glycogen

7

Lactose

glucose + galactose joined with a glycosidic bond

8

Maltose

glucose + glucose joined together with a glycosidic bond

9

Sucrose

glucose + fructose joined together with a glycosidic bond

10

Hydrolysis

breaking a bond using water and an enzyme

11

General formula for monosaccharides

(CH2O)n

12

testing for reducing sugars

Benedict's solution and heat to 80 degrees Celsius, creating a brick red precipitate

13

testing for non reducing sugars

add HCL and heat, add sodium hydrogencarbonate to neutralise solution then add Benedict's and heat, look for a brick red precipitate

14

Opposite of hydrolysis

condensation reaction

15

alpha glucose and beta glucose

alpha= down up down down
beta = down up down up

16

What happens to turn Benedict's red

the copper, which causes the blue colour, gains electrons