Test Bank for Lehninger Principles of Biochemistry, 7th Edition by David L. Nelson 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. ...
1. In pra prbacterial prcell, prthe prDNA p r is prin prthe:
A) cell prenvelope.
B) cell prmembrane.
C) nucleoid.
D) nucleus.
E) ribosomes.
2. A prmajor prchange proccurring prin prthe prevolution prof preukaryotes prfrom prprokaryotes
prwas prthe prdevelopment prof:
A) DNA.
B) photosynthetic prcapability.
C) plasma prmembranes.
D) ribosomes.
E) the prnucleus.
3. In preukaryotes, prthe prnucleus pris prenclosed prby pra prdouble prmembrane prcalled prthe:
A) cell prmembrane.
B) nuclear prenvelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. The prdimensions prof prliving prcells prare prlimited, pron prthe prlower prend prby prthe prminimum
prnumber prof prbiomolecules prnecessary prfor prfunction, prand pron prthe prupper pr end prby prthe
A) carbon-carbon prbonds
B) hydrogen prbonds
C) hydrophobic printeractions
D) ionic printeractions
E) van prder prWaals pr interactions
10. Which prelement pris prNOT pramong prthe prfour prmost prabundant prin prliving prorganisms?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
Page pr2
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11. The prfour prcovalent prbonds prin prmethane pr(CH4) prare prarranged praround prcarbon prto prgive
prwhich prgeometry?
A) linear
B) tetrahedral
C) trigonal prbipyramidal
D) trigonal prplanar
E) trigonal prpyramidal
12. What prfunctional prgroups prare prpresent pron prthis prmolecule?
A) ether prand pr aldehyde
B) hydroxyl prand pr aldehyde
C) hydroxyl prand prcarboxylic pracid
D) hydroxyl prand pr ester
E) hydroxyl prand pr ketone
13. The prmacromolecules prthat prserve prin prthe prstorage prand prtransmission prof prgenetic
prinformation prare:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleic pracids.
E) proteins.
14. Stereoisomers prthat prare prnonsuperimposable prmirror primages prof preach prother prare prknown pras:
A) anomers.
B) cis-trans prisomers.
C) diastereoisomers.
D) enantiomers.
E) geometric prisomers.
15. The prcatalog prof prall prproteins prfunctioning prin pra prcell pr is prthe:
A) metabolome.
B) proteasome.
C) lysosome.
D) proteome.
E) genome.
Page pr3
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