5.2 Sugars

Question 1

monosaccharides generally have molecular formulas that are

Answer 1

some multiple of the unit CH2O

Question 2

(pg 70) how are monosaccharides classified

Answer 2

1-aldose or ketose -based on location of carbonyl group
2- classified by length of carbon skeletons
3- the spatial arrangement around asymmetric carbons (like enantiomers)

Question 3

glucose:

Answer 3

aldose
hexose (6 carbons)
form rings

Question 4

functions of monosaccharides

Answer 4

1 cellular respiration
]2 their carbon skeletons serve as raw material for synthesis of other small organic molecules (like amino acids and fatty acids )

Question 5

what links two monosaccharides in a disaccharide

Answer 5

glycosidic linkage

Question 6

two bonded glucoses makes

Answer 6

maltose (disaccharide) -

Question 7

the most prevalent disaccharide:

Answer 7

sucrose (table sugar)

made of glucose and fructose

Question 8

lactose is made from

Answer 8

glucose and galactose