1 Biochemistry

Question 1

polyhydroxy compounds( poly-alcohols) that contain a carbonyl (c=o)

a. carbohydrate
b. amino acid
c. protein
d. nucleic acid

Answer 1

a. carbohydrate

Question 2

elemental composition
Cx(H2O)y

a. carbohydrate
b. amino acid
c. protein
d. nucleic acid

Answer 2

a. carbohydrate

Question 3

about 80 % of human caloric intake

a. carbohydrate
b. amino acid
c. protein
d. nucleic acid

Answer 3

a. carbohydrate

Question 4

> 90% dry matter of plants

a. carbohydrate
b. amino acid
c. protein
d. nucleic acid

Answer 4

a. carbohydrate

Question 5

functional properties
- sweetness
- chemical reactivity
- polymer functionality

a. carbohydrate
b. amino acid
c. protein
d. nucleic acid

Answer 5

a. carbohydrate

Question 6

what are the two projections in carbohydrate

Answer 6

-Haworth projection
- fischer projection

Question 6

what are the classification of carbohydrate

Answer 6

a. monosaccharide
b. Oligosaccharide
c. polysaccharide

Question 6

what are the members under oligosaccharide

Answer 6

a. disaccharide
b. trisaccharide
c. tetrasaccharide

Question 6

what are the members under polysaccharide

Answer 6

a.homopolysaccharide
b. heteropolysaccharide

Question 6

what oligosaccharide does maltose belong?
a. disaccharide
b. trisaccharide
c. tetrasaccharide

Answer 6

a

Question 6

what oligosaccharide does lactose belong?
a. disaccharide
b. trisaccharide
c. tetrasaccharide

Answer 6

a

Question 6

what oligosaccharide does sucrose belong?
a. disaccharide
b. trisaccharide
c. tetrasaccharide

Answer 6

a

Question 6

what oligosaccharide does raffinose belong?
a. disaccharide
b. trisaccharide
c. tetrasaccharide

Answer 6

b

Question 7

what oligosaccharide does stachyose belong?
a. disaccharide
b. trisaccharide
c. tetrasaccharide

Answer 7

c

Question 8

what polysaccharide does this belong :starch

a. homopolysaccharide
b. heteropolysaccharide

Answer 8

a

Question 9

what polysaccharide does this belong :dextrin

a. homopolysaccharide
b. heteropolysaccharide

Answer 9

a

Question 10

what polysaccharide does this belong :glycogen

a. homopolysaccharide
b. heteropolysaccharide

Answer 10

a

Question 11

what polysaccharide does this belong :cellulose

a. homopolysaccharide
b. heteropolysaccharide

Answer 11

a

Question 12

what polysaccharide does this belong :Inulin

a. homopolysaccharide
b. heteropolysaccharide

Answer 12

a

Question 13

what polysaccharide does this belong :Hyalunoric acid

a. homopolysaccharide
b. heteropolysaccharide

Answer 13

b

Question 14

what polysaccharide does this belong :Heparin

a. homopolysaccharide
b. heteropolysaccharide

Answer 14

b

Question 15

what polysaccharide does this belong :Chondroitin sulfate

a. homopolysaccharide
b. heteropolysaccharide

Answer 15

b

Question 16

what polysaccharide does this belong : dermatan

a. homopolysaccharide
b. heteropolysaccharide

Answer 16

b

Question 17

what polysaccharide does this belong :keratan sulfate

a. homopolysaccharide
b. heteropolysaccharide

Answer 17

b

Question 18

glucose + glucose a. maltose b. lactose c. sucrose

Answer 18

a

Question 19

galactose + glucose a. lactose b. maltose c. sucrose d. raffinose e. stachyose

Answer 19

a

Question 20

glucose + fructose a. lactose b. maltose c. sucrose d. raffinose e. stachyose

Answer 20

c

Question 21

galactose, glucose, and fructose a. lactose b. maltose c. sucrose d. raffinose e. stachyose

Answer 21

d

Question 22

two α-D-galactose units, one α-D-glucose unit, and one β-D-fructose b. maltose c. sucrose d. raffinose e. stachyose

Answer 22

e

Question 23

"What are the three key properties of carbohydrates?" A... Sweetness, Causes tooth decay B... Sweetness, Leads to obesity C... Sweetness, High calorie content D... Sweetness, chemical reactivity, polymer functionality

Answer 23

D... Sweetness, chemical reactivity, polymer functionality