BIOMOLECULES

Question 1

carbohydrates that do not fit the description of conventional formula

Answer 1

rhamnose(C6H1206) and deoxyribose(C6H10O4)

Question 2

compounds that were not carbohydrates but still obeyed the formula?

Answer 2

formaldehyde and acetic acid

Question 3

disaccharides?

Answer 3

sucrose, lactose, and galactose

Question 4

trisaccharides

Answer 4

raffinose

Question 5

tetrasaccharides

Answer 5

stachyose

Question 6

non reducing sugar

Answer 6

sucrose

Question 7

nonsugars?

Answer 7

polysaccharides

Question 8

all naturally occurring monosaccharides belong to

Answer 8

D configuration

Question 9

glucose is

Answer 9

dextro rotatory

Question 10

laboratory method of preparation of glucose

Answer 10

hydrolysis of cane sugar(invertase enzyme)

Question 11

commercial preparation method of glucose

Answer 11

from starch by hydrolysis

Question 12

glucose is converted to hexane by

Answer 12

red P

Question 13

bromine in water converts glucose to

Answer 13

gluconic acid

Question 14

glucose on oxidation by HNO3 forms

Answer 14

saccharic acid

Question 15

what are the limitations of open chain structure?

Answer 15

glucose doesn’t give 2,4 DNP test, NH3, NaHSO3, Schiff base, glucose penta acetate doesn’t react with hydroxyl amine

Question 16

which form shows more stability

Answer 16

beta form

Question 17

ring structure of glucose is also called as

Answer 17

pyranose structure or Haworth structure

Question 18

fructose is a

Answer 18

levulose and ketose

Question 19

the optical rotation of alpha D glucose

Answer 19

+112

Question 20

the optical rotation of beta D glucose?

Answer 20

+19

Question 21

the optical rotation of the equilibrium mixture of anomers of glucose?

Answer 21

+52.5

Question 22

what is mutarotation

Answer 22

the change in the specific rotation of an optically active compound with time to an equilibrium value

Question 23

ring structure of fructose is called

Answer 23

furanose structure

Question 24

sucrose is the disaccharide of

Answer 24

alpha D + glucose and beta D - fructose

Question 25

glycosidic linkage in sucrose is between

Answer 25

C1 of glucose and C2 of fructose

Question 26

maltose is the disaccharide formed by

Answer 26

2 alpha D glucose

Question 27

linkage in maltose

Answer 27

C1-C4

Question 28

lactose

Answer 28

beta D galactose and beta D glucose

Question 29

starch is the polymer of

Answer 29

Alpha D glucose

Question 30

amylopectin has an additional

Answer 30

C1-C6 linkage

Question 31

glycogen is a polymer of

Answer 31

Beta D glucose

Question 32

Cellulose is a polymer of

Answer 32

beta D glucose

Question 33

naturally occurring amino acids are

Answer 33

L configuration

Question 34

neutral amino acids

Answer 34

glycine, alanine

Question 35

acidic amino acids

Answer 35

aspartic acid, glutamic acid

Question 36

basic amino acid

Answer 36

arginine, histidine, lysine

Question 37

peptide linkage is

Answer 37

amide linkage

Question 38

sugar in nucleic acid is

Answer 38

beta D ribose or Beta D deoxyribose

Question 39

steroid hormones are

Answer 39

adrenal cortex secreting hormones and sex hormones

Question 40

amine hormones are

Answer 40

adrenaline and thyroxine

Question 41

peptide hormones are

Answer 41

oxytocin, vasopressin, angiotensin, insulin