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Chem 210 Exam 4: Carbohydrate Structure and Function, Exams of Chemistry

Hampton University (HU)Chemistry

A comprehensive set of multiple-choice questions and answers covering key concepts in carbohydrate chemistry, including monosaccharide structure, disaccharide formation, polysaccharide types, and their functions in biological systems. It is a valuable resource for students studying organic chemistry or biochemistry, offering a structured review of important topics and testing their understanding.

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2024/2025

Available from 02/26/2025

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Chem 210 exam 4 Questions and answers
2025
which .of .the .following .monosaccharides .is .a .ketose?
A. .dihydroxyacetone
B. .galactose
C. .glucose
D. .glyceraldehyde
E. .idose .- .ANSโœ“โœ“-A. .dihydroxyacetone
when .two .carbohydrates .are .epimers:
A. .one .is .a .pyranose, .the .other .is .a .furanose
B. .one .is .an .aldose, .the .other .is .a .ketose
C. .they .differ .in .length .by .one .carbon
D. .they .differ .only .in .the .configuration .about .one .carbon .atom
E. .they .react .differently .with .iodine .- .ANSโœ“โœ“-
D. .they .differ .only .in .the .configuration .about .one .carbon .atom
which .pair .is .anomeric?
A. .D-glucose .and .D-fructose
B. .D-glucose .and .L-fructose
C. .D-glucose .and .L-glucose
D. .a-D-glucose .and .b-D-glucose
E. .a-D-glucose .and .b-L-glucose .- .ANSโœ“โœ“-D. .a-D-glucose .and .b-D-glucose
lactose .is .made .from .linking .galactose .and .glucose. .when .this .happens, .______
_.
A. .gas .is .eliminated
B. .an .anomeric .carbon .is .formed .on .carbon-1
C. .water .is .release
D. .an .epimer .is .formed
E. .an .aldose .is .formed .- .ANSโœ“โœ“-C. .water .is .released
amylose .and .amylopectin .are .both .polymers .of:
A. .a-D-glucose
B. .b-D-glucose
C. .galactose
D. .idose
E. .maltose .- .ANSโœ“โœ“-A. .a-D-glucose
which .statement .about .starch .and .glycogen .is .false?
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Chem 210 exam 4 Questions and answers

which .of .the .following .monosaccharides .is .a .ketose? A. .dihydroxyacetone B. .galactose C. .glucose D. .glyceraldehyde E. .idose .- .ANS โœ“โœ“ -A. .dihydroxyacetone when .two .carbohydrates .are .epimers: A. .one .is .a .pyranose, .the .other .is .a .furanose B. .one .is .an .aldose, .the .other .is .a .ketose C. .they .differ .in .length .by .one .carbon D. .they .differ .only .in .the .configuration .about .one .carbon .atom E. .they .react .differently .with .iodine .- .ANS โœ“โœ“ - D. .they .differ .only .in .the .configuration .about .one .carbon .atom which .pair .is .anomeric? A. .D-glucose .and .D-fructose B. .D-glucose .and .L-fructose C. .D-glucose .and .L-glucose D. .a-D-glucose .and .b-D-glucose E. .a-D-glucose .and .b-L-glucose .- .ANS โœ“โœ“ -D. .a-D-glucose .and .b-D-glucose lactose .is .made .from .linking .galactose .and .glucose. .when .this .happens, .______ _. A. .gas .is .eliminated B. .an .anomeric .carbon .is .formed .on .carbon- C. .water .is .release D. .an .epimer .is .formed E. .an .aldose .is .formed .- .ANS โœ“โœ“ -C. .water .is .released amylose .and .amylopectin .are .both .polymers .of: A. .a-D-glucose B. .b-D-glucose C. .galactose D. .idose E. .maltose .- .ANS โœ“โœ“ -A. .a-D-glucose which .statement .about .starch .and .glycogen .is .false?

A. .both .have .b-D-glucose .monomers B. .both .starch .and .glycogen .are .energy .storage .polysaccharides C. .both .are .homopolymers .of .glucose D. .glycogen .is .more .extensively .branched .than .starch E. .both .have .O-glycosidic .linkages .- .ANS โœ“โœ“ -A. .both .have .b-D- glucose .monomers which .monosaccharide .is .not .a .six-carbon .monosaccharide? A. .fructose B. .ribose C. .mannose D. .galactose E. .glucose .- .ANS โœ“โœ“ -B. .ribose which .statement .about .cellulose .is .true? A. .cellulose .is .the .primary .storage .polysaccharide .of .animal .cells B. .cellulose .is .a .highly .branched .polysaccharide C. .cellulose .is .a .homopolysaccharide D. .the .glucose .residues .of .cellulose .contain .the .same .configuration .as .the .gluc ose .residues .of .amylose E. .cellulose .is .an .anomer .of .chitin .- .ANS โœ“โœ“ - C. .cellulose .is .a .homopolysaccharide the .polysaccharide .cellulose .is .most .chemically .similar .to: A. .glycogen B. .dextrose C. .glycogen D. .chitin E. .starch .- .ANS โœ“โœ“ -D. .chitin which .of .the .following .is .the .most .common .monosaccharide .on .earth? A. .ribose B. .cellulose C. .chitin D. .sucrose E. .glucose .- .ANS โœ“โœ“ -E. .glucose the ."D" .in .the .D-carbohydrates .stand .for: A. .derivation B. .double C. .disaccharide D. .3-dimensional E. .dextrorotatory .- .ANS โœ“โœ“ -E. .dextrorotatory which .compound .does .not .fit .the .formula .of .a .carbohydrate? A. .C6H12O B. .C7H10O C. .C8H16O

A. .sugar B. .carbohydrate C. .energy .molecule D. .sucrose E. .starch .- .ANS โœ“โœ“ -A. .sugar which .of .the .following .monosaccharides .is .not .an .aldose? A. .erythrose B. .dihydroxyacetone C. .glucose D. .glyceraldehyde E. .robise .- .ANS โœ“โœ“ -B. .dihydroxyacetone which .pair .is .anomeric? A. .a-D-talose .and .B-D-talose B. .D-ribose .and .D-galactose C. .D-allose .and .L-fructose D. .D-galactose .and .L-galactose E. .a-D-mannose .and .B-L-mannose .- .ANS โœ“โœ“ -A. .a-D-talose .and .B-D-talose lactose .is .made .from .linkage .galactose .and .glucose. .when .this .happens,______ _. A. .a .polysaccharide .is .formed B. .gas .is .eliminated C. .an .epimer .is .formed D. .an .anomeric .carbon .is .formed .on .carbon- E. .lactose .forms .by .a .condensation .reaction .- .ANS โœ“โœ“ - E. .lactose .forms .by .a .condensation .reaction which .statement .about .starch .and .glycogen .is .false? A. .amylose .is .unbranched; .amylopectin .and .glycogen .contain .many .(a1-

  1. .branches B. .both .are .heteropolymers .of .glucose C. .both .have .many .-OH .groups .in .their .structures D. .both .starch .and .glycogen .are .energy .storage .polysaccharides E. .glycogen .is .more .extensively .branched .than .starcg .- .ANS โœ“โœ“ - B. .both .are .heteropolymers .of .glucose which .monosaccharide .is .not .a .six-carbon .monosaccharide? A. .idose B. .glucose C. .galactose D. .dihydroxyacetone E. .allose .- .ANS โœ“โœ“ -D. .dihydroxyacetone the .organic .molecule .that .is .produced .abundantly .by .photosynthesis .is .______ A. .ribose B. .glucose

C. .cellulose D. .chitin E. .sucrose .- .ANS โœ“โœ“ -B. .glucose which .compound .does .not .fit .the .formal .definition .of .a .carbohydrate? A. .C6H12O B. .C9H18O C. .C3H6O D. .C8H14O E. .C5H10O5 .- .ANS โœ“โœ“ -D. .C8H14O Amylose .has .a1->6 .branching .about .every .____ .residues A.. 1 .to. 10 B.. 8 .to. 12 C.. 10 .to. 30 D.. 24 .to. 30 E. .no .branching .- .ANS โœ“โœ“ -E. .no .branching when .forming .the .disaccharide .maltose .from .two .glucose .monosaccharides: A. .water .is .eliminated B. .gas .is .eliminated C. .an .anomeric .carbon .is .formed D. .an .epimer .is .formed E. .a .hydrogen .bond .is .formed .- .ANS โœ“โœ“ -A. .water .is .eliminated cellulose .and .chitin .are .both .polymers .of: A. .beta-D-glucose B. .galactose C. .alpha-D-glucose D. .idose E. .maltose .- .ANS โœ“โœ“ -A. .beta-D-glucose which .statement .about .starch .and .glycogen .is .false? A. .amylose .is .unbranched; .amylopectin .and .glycogen .contain .many .(a1-

  1. .branches B. .both .are .homopolymers .of .glucose C. .both .serve .primarily .as .structural .elements .in .cell .walls D. .both .starch .and .glycogen .are .energy-storage .polysaccharides E. .glycogen .is .more .extensively .branched .than .starch .- .ANS โœ“โœ“ - C. .both .serve .primarily .as .structural .elements .in .cell .walls which .monosaccharide .is .not .a .five-carbon .monosaccharide? A. .ribose B. .lyxose C. .xylose D. .erythrose E. .arabinose .- .ANS โœ“โœ“ -D. .erythrose

B. .glyceraldehyde C. .glucose D. .lactose E. .both .B .and .C .- .ANS โœ“โœ“ -E. .both .B .and .C which .pair .is .anomeric? A. .D-ribose .and .D-galactose B. .alpha-D-allose .and .beta-D-allose C. .D-ribose .and .L-fructose D. .D-glucose .and .L-glucose E. .alpha-D-idose .and .beta-L-idose .- .ANS โœ“โœ“ -B. .alpha-D-allose .and .beta-D-allose which .monosaccharide .is .not .a .six-carbon .monosaccharide A. .glyceraldehyde B. .atrose C. .galactose D. .talose E. .allose .- .ANS โœ“โœ“ -A. .glyceraldehyde carbohydrates .are .not .used .in .the .following .function: A. .structure B. .energy .storage C. .RNA .sugar D. .metabolic .intermediate E. .all .of .the .above .are .functions .- .ANS โœ“โœ“ -E. .all .of .the .above .are .functions which .of .the .following .monosaccharides .is .a .ketose? A. .glucose B. .fructose C. .galactose D. .mannose .- .ANS โœ“โœ“ -B. .fructose