BICH TEST QUESTIONS - CARR 410 FINAL || 100% Accurate
Answers.
Carbohydrates are components of all of the following EXCEPT
a. the membrane of red blood cells
b. nucleic acids
c. chaperones
d. bacterial cell wall
e. extracellular matrix proteins correct answers C - chaperone proteins
which of the following is an example of a monosaccharide?
a. galactose
b. lactose
c. amylose
d. maltose
e. sucrose correct answers A
Glyceraldehyde has a chiral carbon so it has two stereoisomers which are called
a. diastereomers
b. anomers
c. enantiomers
d. epimers
e. aldoses correct answers C
which of the following can form a cyclic hemiketal?
a. glucose
b. sucrose
c. galactose
d. fructose
e. ribose correct answers D - fructose
which of the structures on the right are epimers? correct answers A&B
which of the structures on the right is/are an L sugar? correct answers C&D
which of the following is a storage polysaccharide?
a. cellulose
b. glycosaminoglycan
c. glucose
d. chitin
e. glycogen correct answers E
,Because osmotic pressure depends only on ____, the osmotic pressure is greatly reduced by
formation of _____ from monosaccharide molecules.
a. number of atoms; CO2 + H2O
b. number of monosaccharide units; CO2 +H2O
c. number of hydroxyl groups; polyhydroxylated polymers
d. number of molecules; polysaccharides
e. number of H bonds; an abundance of H bonds correct answers D - number of molecules;
polysaccharides
Which of the following describes cellulose?
a. strength - due to a large number of inter and intra molecular H bonds
b. homopolymer of N-acetylglucosamine
c. linear heteropolysaccharide
d. digestible by people of northern European descent
e. polymer of glucose with alpha (1-4) linkages correct answers a - strength due to a large
number of inter and intra molecular H bonds
starch & glycogen are both polymers of
a. fructose
b. glucose -1- phosphate
c. sucrose
d. alpha - d -glucose
e. beta - d - glucose correct answers d- alpha d glucose
bacterial cell walls are composed of
pectin
chondroitin sulfate chains
peptidoglycans
heparin
proteoglycans correct answers peptidoglycans
which of the following polysaccharides is a branched polymer?
chitin
amylose
cellulose
amylopectin
hyaluronic acid correct answers amylopectin
the basic structure of a proteoglycan consists of a core protein and a
, glycolipid
glycosaminoglycan
lectin
lipopolysaccharide
peptidoglycan correct answers glycosaminoglycan
in glycoproteins, the carbohydrate is attached through the amino acid residues:
asparagine, serine or threonine
aspartate or glutamate
glutamine or arginine
glycine, alanine, or aspartate correct answers asparagine, serine or threonine
which of the following is found on the outer membrane of gram negative bacteria?
proteoglycans
peptidoglycans
glycoproteins
lipopolysaccharides
lipoproteins correct answers lipopolysaccharides
which of the following explains how the flu virus gains entry into specific cells
attachment to specific ion channels
cleavage of glycosidic bonds of cell surface glycoproteins
attachment to glycoproteins or glycolipids on the cell surface
cleavage of host cell enzymes correct answers attachment to glycoproteins or glycoplipids on the
cell surface
proteins that bind to specific carbohydrates are called correct answers lectins
regarding proteins w O-Linked sugars, which of the following is true?
a. O linked sugars act as a timer for circulating asialoglycoprotein
b. proteins with o linked sugars cannot have N linked sugars
c. o linked sugars can be attached through serine or asparagine side chains
d. proteoglycans do not contain O linked carbs
e. both oligosaccharides and glycosaminoglycans are O linked through a serine side chain correct
answers both oligosacchardies and glycosaminoglycans are o linked through a serine side chain
regarding proteins w N linked sugars, which of the following is true?
Answers.
Carbohydrates are components of all of the following EXCEPT
a. the membrane of red blood cells
b. nucleic acids
c. chaperones
d. bacterial cell wall
e. extracellular matrix proteins correct answers C - chaperone proteins
which of the following is an example of a monosaccharide?
a. galactose
b. lactose
c. amylose
d. maltose
e. sucrose correct answers A
Glyceraldehyde has a chiral carbon so it has two stereoisomers which are called
a. diastereomers
b. anomers
c. enantiomers
d. epimers
e. aldoses correct answers C
which of the following can form a cyclic hemiketal?
a. glucose
b. sucrose
c. galactose
d. fructose
e. ribose correct answers D - fructose
which of the structures on the right are epimers? correct answers A&B
which of the structures on the right is/are an L sugar? correct answers C&D
which of the following is a storage polysaccharide?
a. cellulose
b. glycosaminoglycan
c. glucose
d. chitin
e. glycogen correct answers E
,Because osmotic pressure depends only on ____, the osmotic pressure is greatly reduced by
formation of _____ from monosaccharide molecules.
a. number of atoms; CO2 + H2O
b. number of monosaccharide units; CO2 +H2O
c. number of hydroxyl groups; polyhydroxylated polymers
d. number of molecules; polysaccharides
e. number of H bonds; an abundance of H bonds correct answers D - number of molecules;
polysaccharides
Which of the following describes cellulose?
a. strength - due to a large number of inter and intra molecular H bonds
b. homopolymer of N-acetylglucosamine
c. linear heteropolysaccharide
d. digestible by people of northern European descent
e. polymer of glucose with alpha (1-4) linkages correct answers a - strength due to a large
number of inter and intra molecular H bonds
starch & glycogen are both polymers of
a. fructose
b. glucose -1- phosphate
c. sucrose
d. alpha - d -glucose
e. beta - d - glucose correct answers d- alpha d glucose
bacterial cell walls are composed of
pectin
chondroitin sulfate chains
peptidoglycans
heparin
proteoglycans correct answers peptidoglycans
which of the following polysaccharides is a branched polymer?
chitin
amylose
cellulose
amylopectin
hyaluronic acid correct answers amylopectin
the basic structure of a proteoglycan consists of a core protein and a
, glycolipid
glycosaminoglycan
lectin
lipopolysaccharide
peptidoglycan correct answers glycosaminoglycan
in glycoproteins, the carbohydrate is attached through the amino acid residues:
asparagine, serine or threonine
aspartate or glutamate
glutamine or arginine
glycine, alanine, or aspartate correct answers asparagine, serine or threonine
which of the following is found on the outer membrane of gram negative bacteria?
proteoglycans
peptidoglycans
glycoproteins
lipopolysaccharides
lipoproteins correct answers lipopolysaccharides
which of the following explains how the flu virus gains entry into specific cells
attachment to specific ion channels
cleavage of glycosidic bonds of cell surface glycoproteins
attachment to glycoproteins or glycolipids on the cell surface
cleavage of host cell enzymes correct answers attachment to glycoproteins or glycoplipids on the
cell surface
proteins that bind to specific carbohydrates are called correct answers lectins
regarding proteins w O-Linked sugars, which of the following is true?
a. O linked sugars act as a timer for circulating asialoglycoprotein
b. proteins with o linked sugars cannot have N linked sugars
c. o linked sugars can be attached through serine or asparagine side chains
d. proteoglycans do not contain O linked carbs
e. both oligosaccharides and glycosaminoglycans are O linked through a serine side chain correct
answers both oligosacchardies and glycosaminoglycans are o linked through a serine side chain
regarding proteins w N linked sugars, which of the following is true?
