Biochemistry 7th Edition – Test
Bank
Questions
1. In a bacterial cell, the DNA is in the:
A) cell envelope.
B) cell membrane.
, C) nucleoid.
D) nucleus.
E) ribosomes.
2. A major change occurring in the evolution of eukaryotes from prokaryotes was t
A) DNA.
B) photosynthetic capability.
C) plasma membranes.
D) ribosomes.
E) the nucleus.
3. In eukaryotes, the nucleus is enclosed by a double membrane called the:
A) cell membrane.
B) nuclear envelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
, The dimensions of living cells are limited, on the lower end by the minimum nu
4. the upper end by the rate of diffusion of solutes such as oxygen. Except for
high diameters in the range of:
A) 0.1 mm to 10 mm.
B) 0.3 mm to 30 mm.
C) 0.3 mm to 100 mm.
D) 1 mm to 100 mm.
E) 1 mm to 300 mm.
5. Which group of single-celled microorganisms has many members found growin
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None of the answers is correct.
6. The bacterium E. coli requires simple organic molecules for growth and ener
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
, D) photoautotroph.
E) photoheterotroph.
7. Which is a list of organelles?
A) mitochondria, chromatin, endoplasmic reticulum
B) peroxisomes, lysosomes, plasma membrane
C) proteasomes, peroxisomes, lysosomes
D) mitochondria, endoplasmic reticulum, peroxisomes
E) All of the answers are correct.
8. Which list has the cellular components arranged in order of INCREASING size?
A) amino acid < protein < mitochondrion < ribosome
B) amino acid < protein < ribosome < mitochondrion
C) amino acid < ribosome < protein < mitochondrion
D) protein < amino acid < mitochondrion < ribosome
E) protein < ribosome < mitochondrion < amino acid
9. The three-dimensional structure of macromolecules is formed and maintained p on
of the following is NOT considered a noncovalent interaction?