Mono and Polysaccharides MCDB108 A

Question 1

sugars are metabolic _______ in energy conversion pathways

Answer 1

intermediates

Question 2

energy storage molecules are _____ and _____

Answer 2

starch, glycogen

Question 3

glycocalyx is a sugary coat that is partly _______ and partly ____

Answer 3

structural, signaling

Question 4

chitin and cellulose provide _______ support

Answer 4

structural

Question 5

sugars are common post translational modifications on proteins for _____, _____ and _____

Answer 5

signaling, stability, trafficking

Question 6

there is no ______ code for sugars, it is specifed by variable __.

Answer 6

genetic, enzymes

Question 7

monosaccharides have _____ carbon centers and are ______ active

Answer 7

chiral, optically

Question 8

monosaccharides are ______ and can ______ by the nucleophilic _____ attacking the electrophilic _____

Answer 8

reactive, cyclize, hydroxyl, carbonyl

Question 9

in cells sugars are found in their _______ form

Answer 9

cyclic

Question 10

right side in fischer projection means ________ in haworth

Answer 10

down

Question 11

pyranoses prefer _____ structure, furanose prefer ____

Answer 11

chair, envelope

Question 12

monosaccharides are linked into poly by _______ bonds

Answer 12

glycosidic

Question 13

reactions with alcohols form _________ bond

Answer 13

o glycosidic

Question 14

reactions with amines from ______ bond

Answer 14

n glycosidic

Question 15

monosaccharides polymerize through ________ bonds through a ______ reaction

Answer 15

o glycosidic, condensation

Question 16

in the condensation reaction the _______ at the anomeric carbon attacks OH on another sugar and releases _____ to form the polysaccharide

Answer 16

hemi acetal, water

Question 17

saccharides with hemiacetals are __________ sugars

Answer 17

reducing

Question 18

one to one means _______ are linked

Answer 18

anomeric carbons

Question 19

starch and glycogen are glucose polymers with primarly ______ linkages

Answer 19

alpha 1-4

Question 20

amylose is _______ alpha 1-4

Answer 20

linear

Question 21

amylopectin is the same as amylose but _______ branch points

Answer 21

alpha 1-6

Question 22

glycogen is like starch but has more ____ branch points

Answer 22

alpha 1-6

Question 23

amylose can form a _______ with ___ glucose per turn stabilized by h bonds

Answer 23

helix, six

Question 24

advantages of alpha 1-6 crosslinking means there are many ________ ends, and have compact ______ without changing osmolarity

Answer 24

nonreducing, storage

Question 25

metabolic enzymes mobilize glycogen from ________ end

Answer 25

nonreducing

Question 26

reducing end is nonspecifically _______

Answer 26

reactive

Question 27

structural polysacs can have __________ properties with _______ components

Answer 27

different, same

Question 28

cellulose is found in ______ walls with _____ linkages. it allows tight packing, h bonding and excludes water.

Answer 28

plant, beta 1-4

Question 29

the same properties that govern protein _______ dictate polysacchride structure

Answer 29

folding

Question 30

properties of anomeric carbon and addition of side groups will make some conformations ________ than others generating long range order

Answer 30

more stable