Test Bank For Lehninger Principles of Biochemistry 5th Edition by David L. Nelson (Author), Michael M. Cox (Author) (All Chapters Covered) (Graded A+)

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, Test Bank: Lehninger Principles of Biochemistry, 8th
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Edition, David L. Nelson Chapters 1-28.
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1. In a bacterial cell, the DNA is
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mmin the: mm



A) cell envelope. m m



B) cell membrane. m m



C) nucleoid.
D) nucleus.
E) ribosomes.


2. A major change occurring in the evolution of eukaryotes from prokaryotes
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was the
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development of: m m



A) DNA.
B) photosynthetic capability. m m



C) plasma membranes. m m



D) ribosomes.
E) the nucleus. m m




3. In eukaryotes, the nucleus is enclosed by a double membrane
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mmcalled the: m m



A) cell membrane. m m



B) nuclear envelope. m m



C) nucleolus.
D) nucleoplasm.
E) nucleosome.


4. The dimensions of living cells are limited, on the lower end by the
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m mminimum number of biomolecules necessary for function, and on the
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m mupper end by the rate of diffusion of
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solutes such as oxygen. Except for highly elongated cells, they usually have
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mmlengths and diameters in the range of:
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A) 0.1 m to 10 m. m m m m mm m m



B) 0.3 m to 30 m. m m m m mm m m



C) 0.3 m to 100 m. m m m m mm m m



D) 1 m to 100 m.
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E) 1 m to 300 m.
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,5. Which group of single-celled microorganisms has many members found
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growing in
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extreme environments? m m



A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None of the answers is correct.
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6. The bacterium E. coli requires simple organic molecules for growth and
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m menergy—it is mm



therefore a: mm



A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.


7. Which is a list of organelles?
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A) mitochondria, chromatin, endoplasmic m m m m



reticulum
m m



B) peroxisomes, lysosomes, plasma membrane mm m m m m



C) proteasomes, peroxisomes, lysosomes m m m m



D) mitochondria, endoplasmic reticulum, mm mm



peroxisomes
mm



E) All of the answers are correct.
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8. Which list has the cellular components arranged in order of
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INCREASING size?
m m m m



A) amino acid < protein < mitochondrion < ribosome
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B) amino acid < protein < ribosome < mitochondrion
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C) amino acid < ribosome < protein < mitochondrion
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D) protein < amino acid < mitochondrion < ribosome
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E) protein < ribosome < mitochondrion < amino acid
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9. The three-dimensional structure of macromolecules is formed and maintained
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primarily through noncovalent interactions. Which one of the following
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is NOT considered a
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noncovalent interaction? m m




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, A) carbon-carbon bonds mm



B) hydrogen bonds m m



C) hydrophobic interactions m m



D) ionic interactions m m



E) van der Waals interactions
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10. Which element is NOT among the four most abundant in
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living organisms?
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A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus


11. The four covalent bonds in methane (CH4) are arranged around carbon
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to give which
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geometry?
A) linear
B) tetrahedral
C) trigonal bipyramidal mm



D) trigonal planar mm



E) trigonal pyramidal mm




12. What functional groups are present on
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this molecule?
mm mm




A) ether and aldehyde mm m m



B) hydroxyl and aldehyde m m m m



C) hydroxyl and carboxylic acid m m mm m m



D) hydroxyl and ester m m m m



E) hydroxyl and ketone m m m m




13. The macromolecules that serve in the storage and transmission of
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mmgenetic information m m



are:
A) carbohydrates.




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