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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, Test Bank: Lehninger Principles of Biochemistry, 8th Editi
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on, David L. Nelson Chapters 1-28. Xt Xt Xt Xt Xt




1. In a Xt Xt bacterial cell, the DNA is in th
Xt Xt Xt Xt Xt Xt


e:
A) cell envelope.
Xt


B) cell membrane.
Xt


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


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


A) DNA.
B) photosynthetic capability. Xt


C) plasma membranes. Xt


D) ribosomes.
E) the nucleus. Xt




3. In eukaryotes, the nucleus is enclosed by a double membrane called th
Xt Xt Xt Xt Xt Xt Xt Xt Xt Xt Xt


e:
A) cell membrane. Xt


B) nuclear envelope. Xt


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 diffusio
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n of Xt


solutes such as oxygen. Except for highly elongated cells, they usually have lengths a
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nd diameters in the range of:
Xt Xt Xt Xt Xt


A) 0.1 m to 10 m. Xt Xt Xt Xt


B) 0.3 m to 30 m. Xt Xt Xt Xt


C) 0.3 m to 100 m. Xt Xt Xt Xt


D) 1 m to 100 m. Xt Xt Xt Xt


E) 1 m to 300 m. Xt Xt Xt Xt




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, 5. Which group of single-
Xt Xt Xt


celled microorganisms has many members found growing in
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extreme environments?
Xt


A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None of the answers is correct.
Xt Xt Xt Xt Xt




6. The bacterium E. coli requires simple organic molecules for growth and energy—
Xt Xt Xt Xt Xt Xt Xt Xt Xt Xt Xt


it is
Xt


therefore a: Xt


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 Xt Xt Xt


B) peroxisomes, lysosomes, plasma membrane Xt Xt Xt


C) proteasomes, peroxisomes, lysosomes Xt Xt


D) mitochondria, endoplasmic reticulum, peroxisomes Xt Xt Xt


E) All of the answers are correct.
Xt Xt Xt Xt Xt




8. Which list has the cellular components arranged in order of INCREASING siz
Xt Xt Xt Xt Xt Xt Xt Xt Xt Xt Xt


e?
A) amino acid < protein < mitochondrion < ribosome
Xt Xt Xt Xt Xt Xt Xt


B) amino acid < protein < ribosome < mitochondrion
Xt Xt Xt Xt Xt Xt Xt


C) amino acid < ribosome < protein < mitochondrion
Xt Xt Xt Xt Xt Xt Xt


D) protein < amino acid < mitochondrion < ribosome
Xt Xt Xt Xt Xt Xt Xt


E) protein < ribosome < mitochondrion < amino acid
Xt Xt Xt Xt Xt Xt Xt




9. The three-
Xt


dimensional structure of macromolecules is formed and maintained primarily through
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noncovalent interactions. Which one of the following is NOT considered a
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noncovalent interaction? Xt


A) carbon-carbon bonds Xt




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