Test Bank For Molecular Cell By Harvey Lodish, Angelika Amon|newest version 2025/2026

© Garland Science 2025
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,
, TEST BANK FOR MOLECULAR BIOLOGY OF THE CELL,
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NINTH EDITION juki juki juki




1 Imagine a protein that has been engineered to contain a nuclear localization signal, a
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nuclear export signal, a C-terminal peroxisomal targeting sequence, and a canonical
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endoplasmic reticulum (ER) signal sequence. With all of these signals, where would you
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expect to find the protein after its synthesis?
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A. Cytosol
B. Nucleus
C. Shuttling between the cytosol and the nucleus juki juki juki juki juki juki




D. Peroxisomes
E. Endoplasmic reticulum juki




2 Consider a human cell such as a hepatocyte. j u k i j u k i j u k i j u k i j u k i j u k i j u k i j u k i Which j u k i of j u k i the
j u k i following compartments occupies a larger volume in the cell?
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A. Cytosol
B. Nucleus
C. Endoplasmic reticulum juki




D. Mitochondria
E. Peroxisomes


3 Consider a human liver hepatocyte. Among the following membranes, which one has
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the largest total area?
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A. Plasma membrane juki




B. Nuclear inner membrane juki juki




C. Mitochondrial outer membrane juki juki




D. Rough ER membrane juki juki




E. Smooth ER membrane juki juki




4 Consider two cells, A and B. Both are approximately spherical, but cell A is a bacterium
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with a diameter of only about 1 µm, while the diameter of the eukaryotic cell B is about 10
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µm.
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, If the plasma membrane in the eukaryotic cell comprises only about 2% of the total cell
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membrane, which cell has a higher ratio of total cell membrane to volume? Write down A or B
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j u k i as your answer.
juki juki j u k i




5 Indicate whether the location of each of the following is topologically equivalent to the juki juki juki juki juki juki juki juki juki juki juki juki juki




cytosol (C) or the extracellular space (E). Your answer would be a five-letter string composed
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of letters C and E only, e.g. CCECE.
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( ) Ribosomes juki




juki ( )
j u k i Chromatin
( ) Lysosomal hydrolases juki juki




j ( ) Calcium ions in the
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juki ER ( ) Peroxisomal juki juki




juki catalase

6 Indicate whether each of the following transport processes occurs via the mechanisms juki juki juki juki juki juki juki juki juki juki juki




described as gated transport (G), transmembrane transport (T), or vesicular transport (V). Your
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answer would be a five-letter string composed of letters G, T, and V only, e.g. VTTTG.
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( ) Import into nucleus juki juki juki




j ( ) Export from
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jukinucleus
( ) Import into mitochondriajuki juki juki




j ( ) Return from Golgi
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juki to ER ( ) Return from ER
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jukito cytosol juki




7 Indicate true (T) and false (F) statements below regarding the j u k i j u k i j u k i j u k i j u k i j u k i j u k i j u k i j u k i




j u k i compartmentalization of cells. Your answer would be a four-letter string composed of letters j u k i juki juki juki juki juki juki juki juki juki juki juki




juki T and F only, e.g. TTTF.
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( ) Almost all eukaryotic j u ki j u k i j u k i j u k i cells j u k i have j u k i plastids, j u k i but j u k i only j u k i plant j u k i cells
capable of photosynthesis.
j u k i have j u k i chloroplasts j u k i juki juki




( ) The perinuclear space is topologically equivalent to the extracellular space.
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( ) The mitochondria and chloroplasts are thought to have evolved by invagination and
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pinching off from the plasma membrane of the ancient eukaryotic cell.
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( ) All organelles in a eukaryotic cell can be constructed de novo, which means that the
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information to construct them is encoded in the genome.
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8 Fill in the blank in the following paragraph. DO NOT use abbreviations.
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