,Chapter 1 bk b k The Foundations of Biochemistry
bk bk bk
Multiple Choice Questions
bk bk
1. Cellular bkfoundations
Pages: bk3-4 bk b k Difficulty: bk1 Ans: bkC
In bka bkbacterial bkcell, bkthe bkDNA bkis bkin bkthe:
A) cell bkenvelope.
B) cell b k membrane.
C) nucleoid.
D) nucleus.
E) ribosomes.
2. Cellular bkfoundations
Page: bk4 Difficulty: bk1 Ans: bkE
A bkmajor bkchange bkoccurring bkin bkthe b k evolution bkof bkeukaryotes bkfrom bkprokaryotes bkwas b
bk of:
A) DNA.
B) bkphotosynthetic b k capability.
C) bkplasma b k membranes.
D) ribosomes.
E) the bknucleus.
3. Cellular bkfoundations
Page: bk4 Difficulty: bk1 Ans: bkB
In bkeukaryotes, bkthe bknucleus bkis bkenclosed bkby bka b k double bkmembrane bkcalled bkthe:
A) cell b k membrane.
B) nuclear bkenvelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. Cellular bkfoundations
Page: bk4 Difficulty: bk1 Ans: bkC
The bkdimensions bkof bkliving bkcells bkare bklimited, bkon bkthe bklower bkend bkby bkthe bkminimum bknu
bkbiomoleculesb necessary bkfor bkfunction, bkand bkon bkthe bkupper bkend bkby bkthe bkrate b k of bkdiffusion
k
bkas bkoxygen.
Except bkfor bkhighly bkelongated bkcells, bkthey bkusually bkhave bklengths bkand bkdiameters bkin bkthe
A) 0.1 bk µm bkto bk10 b k µm.
B) 0.3 bk µm bkto bk30 b k µm.
C) 0.3 bk µm bkto bk100 b k µm.
D) 1 bkµm bkto bk100 b k µm.
E) 1 bkµm bkto bk300 b k µm.
,2 Chapter bk1 bk b k The bkFoundations
bkBiochemistry
5. Cellular bkfoundations
Page:bkbk5 Difficulty:bkbk2 Ans:bkbkB
The bkbacterium bkE. b k coli bkrequires bksimple bkorganic bkmolecules bkfor bkgrowth bkand b k energy—
bka:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) bkphotoautotroph.
E) bkphotoheterotroph.
6. Cellular bkfoundations
Page:bkbk10 Difficulty:bkbk2 Ans:bkbkB
Which bkone bkof bkthe bkfollowing bkhas bkthe b k cellular bkcomponents bkarranged bkin bkorder bkof b k inc
A) Amino bkacid bk< bkprotein bk< b k mitochondrion bk < bkribosome
B) Amino bkacid bk< bkprotein bk< b k ribosome bk< bk mitochondrion
C) Amino bkacid bk< bkribosome bk< b k protein bk< bkmitochondrion
D) Protein bk< bkamino bkacid bk< b k mitochondrion bk< bkribosome
E) Protein bk< bkribosome bk< bkmitochondrion bk< bkamino bkacid
7. Cellular bkfoundations
Page:bkbk11 Difficulty:bkbk2 Ans:bkbkA
The bkthree-dimensional bkstructure bkof bkmacromolecules bkis bkformed bkand bkmaintained bkprim
bknoncovalent bk interactions. b k Which bk one bk of bk the bk following bk is b k not bkconsidered bka b k nonc
bkinteraction?
A) carbon-carbon bkbonds
B) hydrogen bkbonds
C) hydrophobic bkinteractions
D) ionic bkinteractions
E) van bkder bkWaals bkinteractions
8. Chemical bkfoundations
Page:bkbk12 Difficulty:bkbk2 Ans:bkbkE
Which bkone bkof bkthe bkfollowing bkis b k not bkamong bkthe bkfour b k most bkabundant bkelements bkin bk
A) Carbon
B) Hydrogen
C) bkNitrogen
D) Oxygen
E) Phosphorus
9. Chemical bkfoundations
Page:bkbk13 Difficulty:bkbk1 Ans:bkbkB
The bkfour bkcovalent bkbonds bkin bkmethane bk(CHbk4) bkare bkarranged bkaround bkcarbon bkto bkgive bk
bk of bk the bkfollowing bkgeometries?
, Chapter bk1 b k The bkFbkoundations bkof bk b k B
bkiochemistry
10. Chemical bkfoundations
Page: bk14 Difficulty: bk1 Ans: bkB
What bkfunctional bkgroups bkare bkpresent bkon bkthis bkmolecule?
A) ether bkand bkaldehyde
B) hydroxyl bkand bkaldehyde
C) hydroxyl bkand bkcarboxylic bkacid
D) hydroxyl bkand bkester
E) hydroxyl bkand bkketone
11. Chemical bkfoundations
Page: bk16 Difficulty: bk1 Ans: bkD
The bkmacromolecules bkthat bkserve bkin bkthe bkstorage b k and bktransmission bkof bkgenetic bkinform
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleic bkacids.
E) bkproteins.
12. Chemical bkfoundations
Page: bk17 Difficulty: bk1 Ans: bkD
Stereoisomers bkthat bkare bknonsuperimposable bkmirror bkimages bkof bkeach bkother b k are bkknow
A) anomers.
B) cis-trans b k isomers.
C) diastereoisomers.
D) enantiomers.
E) geometric bkisomers.
13. Chemical bkfoundations
Page: bk20 Difficulty: bk3 Ans: bkE
The bkenzyme bkfumarase bkcatalyzes bkthe bkreversible bkhydration bkof bkfumaric bkacid bkto bkl-malat
bkwill bknotb
catalyze bkthe bkhydration bkof bkmaleic bkacid, bkthe bkcis bkisomer bkof bkfumaric bkacid. b k Th
k
bkexample bkof:
A) bkbiological bkactivity.
B) chiral bkactivity.
C) racemization.
D) stereoisomerization.
E) stereospecificity.
bk bk bk
Multiple Choice Questions
bk bk
1. Cellular bkfoundations
Pages: bk3-4 bk b k Difficulty: bk1 Ans: bkC
In bka bkbacterial bkcell, bkthe bkDNA bkis bkin bkthe:
A) cell bkenvelope.
B) cell b k membrane.
C) nucleoid.
D) nucleus.
E) ribosomes.
2. Cellular bkfoundations
Page: bk4 Difficulty: bk1 Ans: bkE
A bkmajor bkchange bkoccurring bkin bkthe b k evolution bkof bkeukaryotes bkfrom bkprokaryotes bkwas b
bk of:
A) DNA.
B) bkphotosynthetic b k capability.
C) bkplasma b k membranes.
D) ribosomes.
E) the bknucleus.
3. Cellular bkfoundations
Page: bk4 Difficulty: bk1 Ans: bkB
In bkeukaryotes, bkthe bknucleus bkis bkenclosed bkby bka b k double bkmembrane bkcalled bkthe:
A) cell b k membrane.
B) nuclear bkenvelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. Cellular bkfoundations
Page: bk4 Difficulty: bk1 Ans: bkC
The bkdimensions bkof bkliving bkcells bkare bklimited, bkon bkthe bklower bkend bkby bkthe bkminimum bknu
bkbiomoleculesb necessary bkfor bkfunction, bkand bkon bkthe bkupper bkend bkby bkthe bkrate b k of bkdiffusion
k
bkas bkoxygen.
Except bkfor bkhighly bkelongated bkcells, bkthey bkusually bkhave bklengths bkand bkdiameters bkin bkthe
A) 0.1 bk µm bkto bk10 b k µm.
B) 0.3 bk µm bkto bk30 b k µm.
C) 0.3 bk µm bkto bk100 b k µm.
D) 1 bkµm bkto bk100 b k µm.
E) 1 bkµm bkto bk300 b k µm.
,2 Chapter bk1 bk b k The bkFoundations
bkBiochemistry
5. Cellular bkfoundations
Page:bkbk5 Difficulty:bkbk2 Ans:bkbkB
The bkbacterium bkE. b k coli bkrequires bksimple bkorganic bkmolecules bkfor bkgrowth bkand b k energy—
bka:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) bkphotoautotroph.
E) bkphotoheterotroph.
6. Cellular bkfoundations
Page:bkbk10 Difficulty:bkbk2 Ans:bkbkB
Which bkone bkof bkthe bkfollowing bkhas bkthe b k cellular bkcomponents bkarranged bkin bkorder bkof b k inc
A) Amino bkacid bk< bkprotein bk< b k mitochondrion bk < bkribosome
B) Amino bkacid bk< bkprotein bk< b k ribosome bk< bk mitochondrion
C) Amino bkacid bk< bkribosome bk< b k protein bk< bkmitochondrion
D) Protein bk< bkamino bkacid bk< b k mitochondrion bk< bkribosome
E) Protein bk< bkribosome bk< bkmitochondrion bk< bkamino bkacid
7. Cellular bkfoundations
Page:bkbk11 Difficulty:bkbk2 Ans:bkbkA
The bkthree-dimensional bkstructure bkof bkmacromolecules bkis bkformed bkand bkmaintained bkprim
bknoncovalent bk interactions. b k Which bk one bk of bk the bk following bk is b k not bkconsidered bka b k nonc
bkinteraction?
A) carbon-carbon bkbonds
B) hydrogen bkbonds
C) hydrophobic bkinteractions
D) ionic bkinteractions
E) van bkder bkWaals bkinteractions
8. Chemical bkfoundations
Page:bkbk12 Difficulty:bkbk2 Ans:bkbkE
Which bkone bkof bkthe bkfollowing bkis b k not bkamong bkthe bkfour b k most bkabundant bkelements bkin bk
A) Carbon
B) Hydrogen
C) bkNitrogen
D) Oxygen
E) Phosphorus
9. Chemical bkfoundations
Page:bkbk13 Difficulty:bkbk1 Ans:bkbkB
The bkfour bkcovalent bkbonds bkin bkmethane bk(CHbk4) bkare bkarranged bkaround bkcarbon bkto bkgive bk
bk of bk the bkfollowing bkgeometries?
, Chapter bk1 b k The bkFbkoundations bkof bk b k B
bkiochemistry
10. Chemical bkfoundations
Page: bk14 Difficulty: bk1 Ans: bkB
What bkfunctional bkgroups bkare bkpresent bkon bkthis bkmolecule?
A) ether bkand bkaldehyde
B) hydroxyl bkand bkaldehyde
C) hydroxyl bkand bkcarboxylic bkacid
D) hydroxyl bkand bkester
E) hydroxyl bkand bkketone
11. Chemical bkfoundations
Page: bk16 Difficulty: bk1 Ans: bkD
The bkmacromolecules bkthat bkserve bkin bkthe bkstorage b k and bktransmission bkof bkgenetic bkinform
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleic bkacids.
E) bkproteins.
12. Chemical bkfoundations
Page: bk17 Difficulty: bk1 Ans: bkD
Stereoisomers bkthat bkare bknonsuperimposable bkmirror bkimages bkof bkeach bkother b k are bkknow
A) anomers.
B) cis-trans b k isomers.
C) diastereoisomers.
D) enantiomers.
E) geometric bkisomers.
13. Chemical bkfoundations
Page: bk20 Difficulty: bk3 Ans: bkE
The bkenzyme bkfumarase bkcatalyzes bkthe bkreversible bkhydration bkof bkfumaric bkacid bkto bkl-malat
bkwill bknotb
catalyze bkthe bkhydration bkof bkmaleic bkacid, bkthe bkcis bkisomer bkof bkfumaric bkacid. b k Th
k
bkexample bkof:
A) bkbiological bkactivity.
B) chiral bkactivity.
C) racemization.
D) stereoisomerization.
E) stereospecificity.
