Mod 7

Question 1

contains tartrate ion as a complexing agent

Answer 1

fehling’s solution

Question 2

simple carbohydrates

Answer 2

usually are monosaccharides
hydrophilic
polar molecules

Question 3

complex carbohydrates

Answer 3

polysach
non-hydrophilic
large non polar

Question 4

isomer that contains an aldehyde group

Answer 4

fructose

Question 5

example of reducing sugars

Answer 5

glucose
fructose
glyceraldehyde
galactose
maltose
lactose

Question 6

solubility test for glucose

Answer 6

soluble

Question 7

solubility test for sucrose

Answer 7

soluble

Question 8

solubility test for fructose

Answer 8

insoluble

Question 9

what color was formed that indicates a positive test in molisch test?

Answer 9

purple rings

Question 10

what color was formed that indicates a positive test in fehlings test?

Answer 10

brick red precipitate

Question 11

does sucrose and fructose give red precipitate?

Answer 11

no

Question 12

starch observation after adding h2so4

Answer 12

cloudy solution

Question 13

control observation

Answer 13

yellowish brown (nega)

Question 14

liver replete observation

Answer 14

brown-black positive

Question 15

hungry animal observation

Answer 15

yellowish brown (nega)

Question 16

glycogen

Answer 16

polymer of glucose that serves energy reserve in animals

Question 17

during fasting or starvation, glycogen is ___

Answer 17

depleted.

Question 18

denotes a positive result in glycogen

Answer 18

dark blue or brown black

Question 19

molisch test

Answer 19

test for carbs

Question 20

furfural

Answer 20

formed from pentose sugar

Question 21

hydroxymethyl furfural

Answer 21

formed from hexose sugar

Question 22

gives purple colored complex

Answer 22

a-naphthol

Question 23

sensitive test

Answer 23

fehling

Question 24

two solution of fehling

Answer 24

aqueous copper sulphate & rochelle salt

Question 25

test for simple carbs

Answer 25

benedict test

Question 26

traceable

Answer 26

green

Question 27

low

Answer 27

yellow

Question 28

moderate

Answer 28

orange-red

Question 29

active component of benedict

Answer 29

copper citrate

Question 30

active component of fehling

Answer 30

copper tartrate

Question 31

tollen test

Answer 31

test for aldehydes

Question 32

formation of silver mirror

Answer 32

tollen

Question 33

poly starch and glycogen

Answer 33

iodine

Question 34

amylopectin

Answer 34

produces an orange-yellow hue

Question 35

seliwanoff test

Answer 35

test for kethexoses

Question 36

barfoed test

Answer 36

test for monosach

Question 37

poitive result in tollens

Answer 37

glucose & maltose