Lehninger Principles of Biochemistry, 6th Edition

,Multiple Choice Questions

1. Cellular foundations
Pages: 3-4 Difficulty: 1 Ans: C
In a bacterial cell, the DNA is in the:

A) cell envelope.
B) cell membrane.
C) nucleoid.
D) nucleus.
E) ribosomes.

2. Cellular foundations
Page: 4 Difficulty: 1 Ans: E
A major change occurring in the evolution of
eukaryotes from prokaryotes was the development of:

A) DNA.
B) photosynthetic capability.
C) plasma membranes.
D) ribosomes.
E) the nucleus.

3. Cellular foundations
Page: 4 Difficulty: 1 Ans: B
In eukaryotes, the nucleus is enclosed by a double
membrane called the:

A) cell membrane.
B) nuclear envelope. @thebo
C) nucleolus.
D) nucleoplasm.
E) nucleosome.

4. Cellular foundations
Page: 4 Difficulty: 1 Ans: C

,The dimensions of living cells are limited, on the lower
end by the minimum number of biomolecules
necessary for function, and on the upper end by the
rate of diffusion of solutes such as oxygen.
Except for highly elongated cells, they usually have
lengths and diameters in the range of:

A) 0.1 µm to 10 µm.
B) 0.3 µm to 30 µm.
C) 0.3 µm to 100 µm.
D) 1 µm to 100 µm.
E) 1 µm to 300 µm.

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