BIOCHEMISTRY 8TH EDITION BY DAVID L. NELSON &
MICHAEL M. COX | ISBN 9781319228002 | COMPLETE
CHAPTERS 1–28 QUESTIONS & VERIFIED ANSWERS |
LATEST UPDATED STUDY GUIDE
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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
the development of:
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.
4. The dimensions of living cells are limited, on the lower end by the minimum numb
er of biomolecules necessary for function, and on the upper end by the rate of diff
usion of solutes such as oxygen. Except for highly elongated cells, they usually hav
e lengths and diameters in the range of:
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, A) 0.1 m to 10 m.
B) 0.3 m to 30 m.
C) 0.3 m to 100 m.
D) 1 m to 100 m.
E) 1 m to 300 m.
5. Which group of single-
celled microorganisms has many members found growing in extreme environme
nts?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None of the answers is correct.
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6. The bacterium E. coli requires simple organic molecules for growth and energy—
it is therefore a:
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 primarily throug
h noncovalent interactions. Which one of the following is NOT considered a nonc
ovalent interaction?
A) carbon-carbon bonds
B) hydrogen bonds
C) hydrophobic interactions
D) ionic interactions
E) van der Waals interactions
10. Which element is NOT among the four most abundant in living organisms?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
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11. The four covalent bonds in methane (CH4) are arranged around carbon to give w
hich geometry?
A) linear
B) tetrahedral
C) trigonal bipyramidal
D) trigonal planar
E) trigonals\ pyramidal
12. Whats \ functionals \ groupss \ ares \ presents \ ons \ thiss \ molecule?
A) ethers \ ands \ aldehyde
B) hydroxyls\ ands \ aldehyde
C) hydroxyls\ ands \ carboxylics \ acid
D) hydroxyls\ ands \ ester
E) hydroxyls\ ands \ ketone
13. Thes\macromoleculess\thats\serves\ins\thes\storages\ands\transmissions\ofs\genetics \ informa
ts\ions \ are:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleics \ acids.
E) proteins.
14. Stereoisomerss \ thats \ ares \ nonsuperimposables \ mirrors \ imagess \ ofs \ eachs \ others \ ares \ knowns \ as:
A) anomers.
B) cis-transs\ isomers.
C) diastereoisomers.
D) enantiomers.
E) geometrics \ isomers.
15. Thes \ catalogs \ ofs \ alls \ proteinss \ functionings \ ins \ as \ cells \ iss \ the:
A) metabolome.
B) proteasome.
C) lysosome.
D) proteome.
E) genome.
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