1
Lehninger Principles of Biochemistry 7th Edition
!| !| !| !| !|
Nelson Test Bank
!| !| !|
Table !|Of !|Contents
Table !|of !|Contents 1. !|The !|Foundations !|of !|Biochemistry !|2. !|Water !|3. !|Amino !|Acids, !|Peptides,
!|and !|Proteins !|4. !|The !|Three-Dimensional !|Structure !|of !|Proteins !|5. !|Protein !|Function !|6.
!|Enzymes !|7.
Carbohydrates !|and !|Glycobiology !|8. !|Nucleotides !|and !|Nucleic !|Acids !|9. !|DNA-Based !|Information
!|Technologies !|10. !|Lipids !|11. !|Biological !|Membranes !|and !|Transport !|12. !|Biosignaling !|13. !|Bioenergetics
!|and !|Biochemical !|Reaction !|Types !|14. !|Glycolysis, !|Gluconeogenesis, !|and !|the !|Pentose !|Phosphate
!|Pathway !|15. !|Principles !|of !|Metabolic !|Regulation !|16. !|The !|Citric !|Acid !|Cycle !|17. !|Fatty !|Acid
!|Catabolism !|18. !|Amino !|Acid !|Oxidation !|and !|the !|Production !|of !|Urea !|19. !|Oxidative
!|Phosphorylation !|and !|Photophosphorylation !|Oxidative !|Phosphorylation !|20. !|Carbohydrate
!|Biosynthesis !|in !|Plants !|and !|Bacteria !|21. !|Lipid !|Biosynthesis
22. !|Biosynthesis !|of !|Amino !|Acids, !|Nucleotides, !|and !|Related !|Molecules !|23. !|Hormonal
!|Regulation ! | and !|Integration !|of !|Mammalian !|Metabolism !|24. !|Genes !|and !|Chromosomes !|25.
!|DNA !|Metabolism !|26. !|RNAMetabolism !|27. !|Protein !|Metabolism !|28. !|Regulation !|of !|Gene
,!| Expression
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1. In !|a !|bacterial !|cell, !|t he !|DNA ! | is !|in !|the:
A) cell !|envelope.
B) cell !|membrane.
C) nucleoid.
D) nucleus.
E) ribosomes.
2. A !|major !|change !|occurring !|in !|t he !|evolution !|o f !|eukaryotes !|from !|prokaryotes !|was
!|t he !|development !|of:
A) DNA.
B) photosynthetic !|capability.
C) plasma !|membranes.
D) ribosomes.
E) the !|nucleus.
3. In !|eukaryotes, !|the !|nucleus !|is !|enclosed !|by !|a !|double !|membrane !|called !|the:
A) cell !|membrane.
B) nuclear !|envelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. The !|dimensions !|o f !|living !|cells !|are !|limited, !|o n !|the !|lower !|end !|by !|the !|minimum !|number
!|o f !|biomolecules !|necessary !|for !|function, !|and !|on !|the !|upper !|end !|by !|the !|rate !|of
!|diffusion !|of !|solutes !|such !|as !|o xygen. !|E xcept !|for !|highly !|elongated !|cells, !|t hey !|u sually
!|have !|lengths !|a nd !|diameters !|in !|the !|range !|of:
A) 0.1 !|m !|to !|10 !|m.
B) 0.3 !|m !|to !|30 !|m.
C) 0.3 !|m !|to !|100 !|m.
D) 1 !|m !|to !|100 !|m.
E) 1 !|m !|to !|300 !|m.
5. Which !|group !|of !|single-celled !|microorganisms !|has !|many !|members !|found !|growing !|in
!|extreme !|environments?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None !|o f !|t he !|answers !|is !|correct.
Page !|1
, 2
6. The !|bacterium !|E. !|coli !|requires !|simple !|organic !|molecules !|for !|growth !|and !|energy—it
!|is !|therefore !|a:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
7. Which !|is !|a !|list !|o f !|organelles?
A) mitochondria, !|chromatin, !|endoplasmic !|reticulum
B) peroxisomes, !|lysosomes, !|plasma !|membrane
C) proteasomes, !|peroxisomes, !|lysosomes
D) mitochondria, !|endoplasmic !|reticulum, !|peroxisomes
E) All !|o f !|t he !|answers !|are !|correct.
8. Which !|list !|has !|the !|cellular !|components !|arranged !|in !|order !|o f !|INCREASING !|size?
A) amino !|acid !|< !|protein !|< !|mitochondrion !|< !|ribosome
B) amino !|acid !|< !|protein !|< !|ribosome !|< !|mitochondrion
C) amino !|acid !|< !|ribosome !|< !|protein !|< !|mitochondrion
D) protein !|< !|amino !|acid !|< !|mitochondrion !|< !|ribosome
E) protein !|< !|ribosome !|< !|mitochondrion !|< !|amino !|acid
9. The !|three-dimensional!|structure !|o f !|macromolecules !|is !|formed !|and !|maintained !|primarily
!|through !|noncovalent !|interactions. !|Which !|one !|of !|the !|following !|is !|NOT !|considered !|a
!|noncovalent !|interaction?
A) carbon-carbon !|bonds
B) hydrogen !|bonds
C) hydrophobic !|interactions
D) ionic !|interactions
E) van !|der !|Waals !|interactions
10. Which !|element !|is !|NOT !|among !|the !|four !|most !|abundant !|in !|living !|organisms?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
Page !|2
Lehninger Principles of Biochemistry 7th Edition
!| !| !| !| !|
Nelson Test Bank
!| !| !|
Table !|Of !|Contents
Table !|of !|Contents 1. !|The !|Foundations !|of !|Biochemistry !|2. !|Water !|3. !|Amino !|Acids, !|Peptides,
!|and !|Proteins !|4. !|The !|Three-Dimensional !|Structure !|of !|Proteins !|5. !|Protein !|Function !|6.
!|Enzymes !|7.
Carbohydrates !|and !|Glycobiology !|8. !|Nucleotides !|and !|Nucleic !|Acids !|9. !|DNA-Based !|Information
!|Technologies !|10. !|Lipids !|11. !|Biological !|Membranes !|and !|Transport !|12. !|Biosignaling !|13. !|Bioenergetics
!|and !|Biochemical !|Reaction !|Types !|14. !|Glycolysis, !|Gluconeogenesis, !|and !|the !|Pentose !|Phosphate
!|Pathway !|15. !|Principles !|of !|Metabolic !|Regulation !|16. !|The !|Citric !|Acid !|Cycle !|17. !|Fatty !|Acid
!|Catabolism !|18. !|Amino !|Acid !|Oxidation !|and !|the !|Production !|of !|Urea !|19. !|Oxidative
!|Phosphorylation !|and !|Photophosphorylation !|Oxidative !|Phosphorylation !|20. !|Carbohydrate
!|Biosynthesis !|in !|Plants !|and !|Bacteria !|21. !|Lipid !|Biosynthesis
22. !|Biosynthesis !|of !|Amino !|Acids, !|Nucleotides, !|and !|Related !|Molecules !|23. !|Hormonal
!|Regulation ! | and !|Integration !|of !|Mammalian !|Metabolism !|24. !|Genes !|and !|Chromosomes !|25.
!|DNA !|Metabolism !|26. !|RNAMetabolism !|27. !|Protein !|Metabolism !|28. !|Regulation !|of !|Gene
,!| Expression
Page !|1 !|of !|648
,1
1. In !|a !|bacterial !|cell, !|t he !|DNA ! | is !|in !|the:
A) cell !|envelope.
B) cell !|membrane.
C) nucleoid.
D) nucleus.
E) ribosomes.
2. A !|major !|change !|occurring !|in !|t he !|evolution !|o f !|eukaryotes !|from !|prokaryotes !|was
!|t he !|development !|of:
A) DNA.
B) photosynthetic !|capability.
C) plasma !|membranes.
D) ribosomes.
E) the !|nucleus.
3. In !|eukaryotes, !|the !|nucleus !|is !|enclosed !|by !|a !|double !|membrane !|called !|the:
A) cell !|membrane.
B) nuclear !|envelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. The !|dimensions !|o f !|living !|cells !|are !|limited, !|o n !|the !|lower !|end !|by !|the !|minimum !|number
!|o f !|biomolecules !|necessary !|for !|function, !|and !|on !|the !|upper !|end !|by !|the !|rate !|of
!|diffusion !|of !|solutes !|such !|as !|o xygen. !|E xcept !|for !|highly !|elongated !|cells, !|t hey !|u sually
!|have !|lengths !|a nd !|diameters !|in !|the !|range !|of:
A) 0.1 !|m !|to !|10 !|m.
B) 0.3 !|m !|to !|30 !|m.
C) 0.3 !|m !|to !|100 !|m.
D) 1 !|m !|to !|100 !|m.
E) 1 !|m !|to !|300 !|m.
5. Which !|group !|of !|single-celled !|microorganisms !|has !|many !|members !|found !|growing !|in
!|extreme !|environments?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None !|o f !|t he !|answers !|is !|correct.
Page !|1
, 2
6. The !|bacterium !|E. !|coli !|requires !|simple !|organic !|molecules !|for !|growth !|and !|energy—it
!|is !|therefore !|a:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
7. Which !|is !|a !|list !|o f !|organelles?
A) mitochondria, !|chromatin, !|endoplasmic !|reticulum
B) peroxisomes, !|lysosomes, !|plasma !|membrane
C) proteasomes, !|peroxisomes, !|lysosomes
D) mitochondria, !|endoplasmic !|reticulum, !|peroxisomes
E) All !|o f !|t he !|answers !|are !|correct.
8. Which !|list !|has !|the !|cellular !|components !|arranged !|in !|order !|o f !|INCREASING !|size?
A) amino !|acid !|< !|protein !|< !|mitochondrion !|< !|ribosome
B) amino !|acid !|< !|protein !|< !|ribosome !|< !|mitochondrion
C) amino !|acid !|< !|ribosome !|< !|protein !|< !|mitochondrion
D) protein !|< !|amino !|acid !|< !|mitochondrion !|< !|ribosome
E) protein !|< !|ribosome !|< !|mitochondrion !|< !|amino !|acid
9. The !|three-dimensional!|structure !|o f !|macromolecules !|is !|formed !|and !|maintained !|primarily
!|through !|noncovalent !|interactions. !|Which !|one !|of !|the !|following !|is !|NOT !|considered !|a
!|noncovalent !|interaction?
A) carbon-carbon !|bonds
B) hydrogen !|bonds
C) hydrophobic !|interactions
D) ionic !|interactions
E) van !|der !|Waals !|interactions
10. Which !|element !|is !|NOT !|among !|the !|four !|most !|abundant !|in !|living !|organisms?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
Page !|2
