Sugars

Question 1

what is the scientific name for a sugar

Answer 1

a saccharide (one sugar means monosaccharide)

Question 2

what are the five monosaccharides?

Answer 2

Glucose, galactose fructose ( all hexose- has six carbons) Ribose, deoxyribose (pentose-five carbons)

Question 3

how do we group monosaccharides?

Answer 3

based on the amount of carbons atoms

Question 4

what are the groups called?

Answer 4

triose-3 carbon atoms, tetrose-4 carbon atoms, pentose-5 carbon atoms, hexose-6 carbon atoms

Question 5

what’s the general formula for monosaccharides?

Answer 5

CnH2nOn

Question 6

what ar the two glucose isomers and what are the differences?

Answer 6

a-glucose (has hydroxl groups on the same side), b-glucose (has hydroxl groups on opposite sides)

Question 7

what are two sugars joined togethere?

Answer 7

Disaccharides

Question 8

what are types of disaccharides?

Answer 8

maltose (glucose/glucose), Lactose (glucose /galactose), sucrose (glucose/fructose)

Question 9

how are disaccharides formed?

Answer 9

By the condensation of two monosaccharides

Question 10

what are the bonds for sugars?

Answer 10

glycosidic bonds (covalent bond)

Question 11

how do you perform the test for benedict test for reducing sugars?

Answer 11

1. add equal volume of benedict to food sample.
   2.place in a water bath.
2. if reducing sugar is present it appears red, if not present it appears blue