MOLECULAR CELL BIOLOGY CHAPTER 18 FULL
TEST BANK WITH ACTUAL QUESTIONS AND
CORRECT SOLUTIONS GUARANTEED PASS
◉The major component of cilia . Answer: Microtubules
◉What drives chromosome movement in mitosis? . Answer: Motor
proteins and microtubule dynamics
◉At what end of the microtubule is the y-tubulin ring complex found? .
Answer: (-) end
◉What are responsible for "capturing" chromosomes during mitosis? .
Answer: Kinetochore microtubules
◉What structures are involved in cell movement? . Answer:
Microtubules and microfilaments, NOT intermediate filaments.
◉Which tubulin subunits bind to nucleotides? . Answer: Alpha and
Beta-tubulin
◉Are intermediate filaments polarized structures? . Answer: No
, ◉What end of the microtubule is anchored at the centrosomes? .
Answer: The (-) end
◉When are microtubules more dynamic? . Answer: During mitosis
◉A shrinking microtubule peels off at its ____ end with beta-tubulin
bound with ____. . Answer: (+), GDP
◉Is branching included in the description of dynamic instability of
microtubules? . Answer: Nope
◉Is actin a GTPase? . Answer: Nah.
◉How is mictrotubule protofilament formed? . Answer: By the head to
tail association of tubulin dimers
◉How is a dynein motor linked to its cargo? . Answer: It is linked
through the associated dynein complex.
◉What kind of cytoskeletal element is nuclear lamin? . Answer:
Intermediate filament
TEST BANK WITH ACTUAL QUESTIONS AND
CORRECT SOLUTIONS GUARANTEED PASS
◉The major component of cilia . Answer: Microtubules
◉What drives chromosome movement in mitosis? . Answer: Motor
proteins and microtubule dynamics
◉At what end of the microtubule is the y-tubulin ring complex found? .
Answer: (-) end
◉What are responsible for "capturing" chromosomes during mitosis? .
Answer: Kinetochore microtubules
◉What structures are involved in cell movement? . Answer:
Microtubules and microfilaments, NOT intermediate filaments.
◉Which tubulin subunits bind to nucleotides? . Answer: Alpha and
Beta-tubulin
◉Are intermediate filaments polarized structures? . Answer: No
, ◉What end of the microtubule is anchored at the centrosomes? .
Answer: The (-) end
◉When are microtubules more dynamic? . Answer: During mitosis
◉A shrinking microtubule peels off at its ____ end with beta-tubulin
bound with ____. . Answer: (+), GDP
◉Is branching included in the description of dynamic instability of
microtubules? . Answer: Nope
◉Is actin a GTPase? . Answer: Nah.
◉How is mictrotubule protofilament formed? . Answer: By the head to
tail association of tubulin dimers
◉How is a dynein motor linked to its cargo? . Answer: It is linked
through the associated dynein complex.
◉What kind of cytoskeletal element is nuclear lamin? . Answer:
Intermediate filament
