Test Bank: Lehninger Principles of Biochemistry, 7th Edition,
By David L. Nelson
All Chapters 1-28 | Expert Verified Answers | Grade A+
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TABLE OF CONTENTS
Chapter 1 – The Foundations of Biochemistry
Chapter 2 – Water
Chapter 3 – Amino Acids, Peptides, and Proteins
Chapter 4 – The Three-Dimensional Structure of Proteins
Chapter 5 – Protein Function
Chapter 6 – Enzymes
Chapter 7 – Carbohydrates and Glycobiology
Chapter 8 – Nucleotides and Nucleic Acids
Chapter 9 – DNA-Based Information Technologies
Chapter 10 – Lipids
Chapter 11 – Biological Membranes and Transport
Chapter 12 – Biosignaling
Chapter 13 – Principles of Bioenergetics
Chapter 14 – Glycolysis, Gluconeogenesis
Chapter 15 – Principles of Metabolic Regulation
Chapter 16 – The Citric Acid Cycle
Chapter 17 – Fatty Acid Catabolism
Chapter 18 – Amino Acid Oxidation
Chapter 19 – Oxidative Phosphorylation
Chapter 20 – Carbohydrate Biosynthesis in Plants
Chapter 21 – Lipid Biosynthesis
Chapter 22 – Biosynthesis of Amino Acids
Chapter 23 – Integration and Hormonal Regulation
Chapter 24 – Genes and Chromosomes
Chapter 25 – DNA Metabolism
Chapter 26 – RNA Metabolism
Chapter 27 – Protein Metabolism
Chapter 28 – Regulation of Gene Expression
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Answers At The End Of Each Chapter
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 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 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.
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5. Which group of single-celled microorganisms has many members found growing in
extreme environments?
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 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
through noncovalent interactions. Which one of the following is NOT considered a
noncovalent interaction?
A) carbon-carbon bonds
B) hydrogen bonds
C) hydrophobic interactions
D) ionic interactions
E) van der Waals interactions
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