Test Bank - Lehninger Principles of Biochemistry, 7th Edition (Nelson, 2018) Chapter 1-28 | All Chapters

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Test Bank –
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Lehninger Principles of Biochemistry, 7th Edition (Nelson, 2018) Chapter
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p6 1-28 | All Chapters
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Prose1 Stuvia
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, Test Bank: Lehninger Principles of Biochemistry, 7th
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Edition, David L. Nelson Chapters 1-28.
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1. In a bacterial cell, the DNA is in
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the:
p6



A) cell envelope. p6



B) cell membrane. p6



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


2. A major change occurring in the evolution of eukaryotes from prokaryotes was
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the
p6



development of: p6



A) DNA.
B) photosynthetic capability. p6



C) plasma membranes. p6



D) ribosomes.
E) the nucleus. p6




3. In eukaryotes, the nucleus is enclosed by a double membrane called
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the:
p6



A) cell membrane. p6



B) nuclear envelope. p6



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


4. The dimensions of living cells are limited, on the lower end by the minimum number
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of biomolecules necessary for function, and on the upper end by the rate of diffusion
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of
p6



solutes such as oxygen. Except for highly elongated cells, they usually have lengths
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and diameters in the range of:
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A) 0.1 m to 10 m. p6 p6 p6 p6



B) 0.3 m to 30 m. p6 p6 p6 p6



C) 0.3 m to 100 m. p6 p6 p6 p6



D) 1 m to 100 m. p6 p6 p6 p6




E) 1 m to 300 m. p6 p6 p6 p6




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,5. Which group of single-celled microorganisms has many members found growing
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p6in
extreme environments?
p6



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 energy—it
p6 p6 p6 p6 p6 p6 p6 p6 p6 p6 p6



p6is
therefore a: p6



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 reticulum p6 p6 p6



B) peroxisomes, lysosomes, plasma membrane p6 p6 p6



C) proteasomes, peroxisomes, lysosomes p6 p6



D) mitochondria, endoplasmic reticulum, peroxisomes p6 p6 p6



E) All of the answers are correct.
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8. Which list has the cellular components arranged in order of INCREASING
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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 primarily
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p6through noncovalent interactions. Which one of the following is NOT considered a
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noncovalent interaction? p6



A) carbon-carbon bonds p6



B) hydrogen bonds p6




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, C) hydrophobic interactions p6



D) ionic interactions p6



E) van der Waals interactions
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10. Which element is NOT among the four most abundant in living
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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 to give
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which
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geometry?
A) linear
B) tetrahedral
C) trigonal bipyramidal p6



D) trigonal planar p6



E) trigonal pyramidal p6




12. What functional groups are present on this
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molecule?
p6




A) ether and aldehyde
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B) hydroxyl and aldehyde p6 p6



C) hydroxyl and carboxylic acid
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D) hydroxyl and ester p6 p6



E) hydroxyl and ketone p6 p6




13. The macromolecules that serve in the storage and transmission of genetic
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information
p6



are:
A) carbohydrates.
B) lipids.
C) membranes.




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