Test Bank For Lehninger Principles of Biochemistry 8th Edition By David L. Nelson; Michael M. Cox | 9781319228002 | | Chapter 1-28 | All Chapters with Answers

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,1. In a bacterial cell, the DNA is in the:
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A) cell envelope. 0


B) cell membrane. 0


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


2. A major change occurring in the evolution of eukaryotes from prokaryotes was the de
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velopment of: 0


A) DNA.
B) photosynthetic capability. 0


C) plasma membranes. 0


D) ribosomes.
E) the nucleus. 0




3. In eukaryotes, the nucleus is enclosed by a double membrane called the:
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A) cell membrane. 0


B) nuclear envelope. 0


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


4. The dimensions of living cells are limited, on the lower end by the minimum number of bio
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molecules necessary for function, and on the upper end by the rate of diffusion of solutes s
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uch as oxygen. Except for highly elongated cells, they usually have lengths and diameters i
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n the range of:
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A) 0.1 m to 10 m. 0 0 0 0


B) 0.3 m to 30 m. 0 0 0 0


C) 0.3 m to 100 m. 0 0 0 0


D) 1 m to 100 m.
0 0 0 0


E) 1 m to 300 m.
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5. Which group of single-
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celled microorganisms has many members found growing in extreme environments?
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A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None of the answers is correct. 0 0 0 0 0




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6. The bacterium E. coli requires simple organic molecules for growth and energy—
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it is therefore a:
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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 0 0 0


B) peroxisomes, lysosomes, plasma membrane 0 0 0


C) proteasomes, peroxisomes, lysosomes 0 0


D) mitochondria, endoplasmic reticulum, peroxisomes 0 0 0


E) All of the answers are correct.
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8. Which list has the cellular components arranged in order of 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-
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dimensional structure of macromolecules is formed and maintained primarily through no
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ncovalent interactions. Which one of the following is NOT considered a noncovalent inte
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raction?
A) carbon-carbon bonds 0


B) hydrogen bonds 0


C) hydrophobic interactions 0


D) ionic interactions 0


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




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