Test Bank - Lehninger Principles of Biochemistry, 8th Edition (Nelson) Chapter 1-28 | All Chapters

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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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in the:
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A) cell envelope. cv


B) cell membrane. cv


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: cv


A) DNA.
B) photosynthetic capability. cv


C) plasma membranes. cv


D) ribosomes.
E) the nucleus. cv




3. In eukaryotes, the nucleus is enclosed by a double membrane
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called the:
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A) cell membrane. cv


B) nuclear envelope. cv


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


4. The dimensions of living cells are limited, on the lower end by the
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minimum number of biomolecules necessary for function, and on the
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cvupper 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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lengths and diameters in the range of:
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A) 0.1 m to 10 m. cv cv cv c v


B) 0.3 m to 30 m. cv cv cv c v


C) 0.3 m to 100 m. cv cv cv c v


D) 1 m to 100 m. cv cv cv c v


E) 1 m to 300 m. cv cv cv c v




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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? cv


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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cv energy— it is cv cv


therefore a: cv


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 cv cv


reticulum
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B) peroxisomes, lysosomes, plasma membrane cv cv cv


C) proteasomes, peroxisomes, lysosomes cv cv


D) mitochondria, endoplasmic reticulum, cv cv


peroxisomes
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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?
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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 is
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cvNOT considered acv cv


noncovalent interaction? cv




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, A) carbon-carbon bonds cv


B) hydrogen bonds cv


C) hydrophobic interactions cv


D) ionic interactions cv


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 cv


D) trigonal planar cv


E) trigonal pyramidal cv




12. What functional groups are present on
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this molecule?
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A) ether and aldehyde cv cv


B) hydroxyl and aldehyde cv cv


C) hydroxyl and carboxylic acid cv cv cv


D) hydroxyl and ester cv cv


E) hydroxyl and ketone cv cv




13. The macromolecules that serve in the storage and transmission of
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genetic information
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are:
A) carbohydrates.




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