Test Bank for Lehninger Principles of Biochemistry 8th Edition by David L. Nelson 9781319228002 | Complete Guide A+

Test Bank for Lehninger Principles of Biochemistry
8th Edition by David L. Nelson 9781319228002 |
Complete Guide A+

,1. In a bacterial cell, the DNA is in the:
x x x x x x x x


A) cell envelope. x


B) cell membrane. x


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


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


development of: x


A) DNA.
B) photosynthetic capability. x


C) plasma membranes. x


D) ribosomes.
E) the nucleus. x




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


A) cell membrane. x


B) nuclear envelope. x


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


4. The dimensions of living cells are limited, on the lower end by the minimum number of
x x x x x x x x x x x x x x x x


biomolecules necessary for function, and on the upper end by the rate of diffusion of
x x x x x x x x x x x x x x x


solutes such as oxygen. Except for highly elongated cells, they usually have lengths
x x x x x x x x x x x x x


anddiameters in the range of:
x x x x x x


A) 0.1 m to 10 m.
xx x x x x x


B) 0.3 m to 30 m. x x x x


C) 0.3 m to 100 m. x x x x


D) 1 m to 100 m.
xx x x x x x


E) 1 m to 300 m. x x x x




5. Which group of single-celled microorganisms has many members found growing in
x x x x x x x x x x


extreme environments? x


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




Page 1 x

, 6. The bacterium E. coli requires simple organic molecules for growth and energyóit is
x x x x x x x x x x x x


therefore a: x


A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.


7. Which is a list of organelles?
x x x x x


A) mitochondria, chromatin, endoplasmic reticulum x x x


B) peroxisomes, lysosomes, plasma membrane x x x


C) proteasomes, peroxisomes, lysosomes x x


D) mitochondria, endoplasmic reticulum, peroxisomes x x x


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




8. Which list has the cellular components arranged in order of INCREASING size?
x x x x x x x x x x x


A) amino acid < protein < mitochondrion < ribosome
x x x x x x x


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


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


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


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




9. The three-dimensional structure of macromolecules is formed and maintained primarily
x x x x x x x x x


through noncovalent interactions. Which one of the following is NOT considered a
x x x xx x x x x x x x x


noncovalent interaction? x


A) carbon-carbon bonds x


B) hydrogen bonds x


C) hydrophobic interactions x


D) ionic interactions x


E) van der Waals interactions
x x x




10. Which element is NOT among the four most abundant in living organisms?
x x x x x x x x x x x


A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus




Page 2 x

, 11. The four covalent bonds in methane (CH4) are arranged around carbon to give which
x x x x x x x x x x x x x


geometry?
x


A) linear
B) tetrahedral
C) trigonal bipyramidal x


D) trigonal planar x


E) trigonal pyramidal x




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




A) ether and aldehyde
x x


B) hydroxyl and aldehyde x x


C) hydroxyl and carboxylic acid
x x x


D) hydroxyl and ester x x


E) hydroxyl and ketone x x




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


are:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleic acids. x


E) proteins.


14. Stereoisomers that are nonsuperimposable mirror images of each other are known as:
x x x x x x x x x x x


A) anomers.
B) cis-trans isomers. x


C) diastereoisomers.
D) enantiomers.
E) geometric isomers. x




Page 3 x