
Concept explainers
A.
To examine: Whether the statement “Kinesin moves endoplasmic reticulum membranes along microtubules so that the network of ER tubules becomes stretched throughout the cell” is correct or incorrect.
B.
To examine: Whether the statement “Without actin, cells can form a functional mitotic spindle and pull their chromosomes apart but cannot divide” is correct or incorrect.
C.
To examine: Whether the statement “Lamellipodia and filopodia are “feelers” that a cell extends to find anchor points on the substratum that it will then crawl over” is correct or incorrect.
D.
To examine: Whether the statement “GTP is hydrolyzed by tubulin to cause the bending of flagella”is correct or incorrect.
E.
To examine: Whether the statement “Cells having an intermediate-filament network that cannot be depolymerized would die” is correct or incorrect.
F.
To examine: Whether the statement “Theplus ends of microtubules grow faster because they have a larger GTP cap”is correct or incorrect.
G.
To examine: Whether the statement “The transverse tubules in muscle cells are an extension of the plasma membrane, with which they are continuous; similarly, the sarcoplasmic reticulum is an extension of the endoplasmic reticulum” is correct or incorrect.
H.
To examine: Whether the statement “Activation of myosin movement on actin filaments is triggered by the phosphorylation of troponin in some situations and by calcium ion (Ca2+) binding to troponin in others” is correct or incorrect.

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Chapter 17 Solutions
Essential Cell Biology 5e
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