Molecular Biology of the Cell – Test Bank (6th Edition) | ISBN 9780815344322 | Comprehensive Q&A for All Chapters 1–24

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Test Bank for Molecular Biology of The Cell, 6th Edition

by Alberts, Bruce

All Chapters (1-24) |Q&A Verified |Grade A+ Assured

ISBN 9780815344322




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TABLE OF CONTENTS

Chapter 1: Cells And Genomes .........................................................................................................................................................................
Chapter 2: Cell Chemistry And Bioenergetics ........................................................................................................................................ 1
Chapter 3: Proteins ............................................................................................................................................................................................ 3
Chapter 4: Dna, Chromosomes, And Genomes..................................................................................................................................... 4
Chapter 5: Dna Replication, Repair, And Recombination ..................................................................................................................... 6
Chapter 6: How Cells Read The Genome: From Dna To Protein ..................................................................................................... 8
Chapter 7: CONTROL OF GENE EXPRESSION ..................................................................................................................................... 10
Chapter 8: ANALYZING CELLS, MOLECULES, AND SYSTEMS ..................................................................................................... 12
Chapter 9: Visualizing Cells ............................................................................................................................................................................ 17
Chapter 10 Membrane Structure ................................................................................................................................................................. 18
Chapter 11 Membrane Transport Of Small Molecules And The Electrical Properties Of Membranes......................... 19
Chapter 12 Intracellular Compartments And Protein Sorting ....................................................................................................... 20
Chapter 13: INTRACELLULAR MEMBRANE TRAFFIC ......................................................................................................................... 22
Chapter 14: Energy Conversion: Mitochondria And Chloroplasts ........................................................................................... 24
Chapter 15: Cell Signaling ............................................................................................................................................................................... 25
Chapter 16: The Cytoskeleton .................................................................................................................................................................... 28
Chapter 17: THE CELL CYCLE .................................................................................................................................................................... 30
Chapter 18: Cell Death ...................................................................................................................................................................................... 32
Chapter 19: Cell Junctions And The Extracellular Matrix ................................................................................................................. 33
Chapter 20: Cancer............................................................................................................................................................................................. 35
Chapter 21: Development Of Multicellular Organisms ....................................................................................................................... 36
Chapter 22: Stem Cells And Tissue Renewal...................................................................................................................................... 39
Chapter 23: Pathogens And Infection ..................................................................................................................................................... 40
Chapter 24: The Innate And Adaptive Immune Systems.................................................................................................................... 41




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CHAPTER 1: CELLS AND GENOMES

1 Scientists discover more than ten thousand new species of living organisms every
year. What is shared between all of these organisms?
A. They are made of cells, whose nuclei enclose their DNA.
B. They obtain their energy from sunlight.
C. They produce and use adenosine triphosphate (ATP).
D. Their genome contains at least 1000 genes.
E. All of the above.


2 All cells …
A. have membrane transport proteins.
B. synthesize proteins on the ribosome.
C. replicate their genome by DNA polymerization.
D. transcribe their genetic information by RNA polymerization.
E. All of the above.


3 Imagine a segment of DNA (within a gene) encoding a certain amount of information
in its nucleotide sequence. When this segment is fully transcribed into mRNA and then
translated into protein, in general, …
A. the protein sequence would carry more information compared to the DNA and
mRNA sequences, because its alphabet has 20 letters.
B. the protein sequence would carry less information compared to the DNA and
mRNA sequences, because several codons can correspond to one amino acid.
C. the amount of information in the mRNA sequence is lower, because the mRNA
has been transcribed using only one of the DNA strands as the template.
D. the amount of information in the mRNA sequence is higher, because several
mRNA molecules can be transcribed from one DNA molecule.

4 Which of the following processes that happens inside a cell DOES NOT normally
require consumption of free energy by the cell?




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A. Replication of the genetic material
B. Import of nutrients from the environment
C. Diffusion of small molecules within the cell
D. Regulation of gene expression
E. Synthesis of enzymes that catalyze cellular reactions


5 Which of the following would you NOT expect to find in a bacterial cell?
A. Swimming using flagella
B. Having a cell wall around the plasma membrane
C. ATP production in mitochondria
D. Protein production on the ribosome
E. Sexual exchange of DNA with other bacteria


6 To trace family relationships between distantly related organisms such as humans,
algae, bacteria, and archaea, one should compare their genomes in regions …
A. that evolve rapidly.
B. that have a higher mutation rate.
C. that code for proteins.
D. where mutations are hardly tolerated.
E. where most mutations are selectively neutral.


7 Laboratory strains of the model organism Escherichia coli that are resistant to
antibiotics are very often used in research laboratories as well as in the biotechnology
industry. If cultures of such bacteria were allowed to contaminate the environment
uncontrollably, it is possible that at some point, pathogenic bacteria such as Neisseria
meningitidis (which causes meningitis and can cause death, especially in children) could
acquire the same antibiotic-resistance gene, causing a meningitis outbreak that is difficult
to treat. In this scenario, which of the following mechanisms is a more likely source of the
antibiotic-resistance gene in N. meningitidis?
A. Random new gene generation
B. Intragenic mutation
C. Gene duplication
D. DNA segment shuffling
E. Horizontal gene transfer


8 A virus …
A. is a type of cell.
B. has genetic material made of proteins.
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