BIO 353 exam 2 – ASU Exam Questions
and Answers
The monomer of tubulin: - Ans:-is a heterodimer with a total molecular weight of 110 kDa.
Treadmilling can occur - Ans:-in a test tube for actin filaments and microtubules
Molecular motors working with microtubules - Ans:-are calcium-dependent A...
In a living cell, which end of the microtubule is effectively capped? - Ans:✔✔-disassembly end
The intracellular preference for microtubules is - Ans:✔✔-the centrosome
Gamma-tubulin is present in - Ans:✔✔-the centrosome
The outer diameter of a microtubule is ....... nm. - Ans:✔✔-25
The dynactin complex acts only on actin filaments. - Ans:✔✔-false
The barrier function of an epithelium extends the role of the plasma membrane over a larger surface
area - Ans:✔✔-true
Desmosome junctions are calcium-dependent but cadherin junctions are not. - Ans:✔✔-false
A hemidesmosome connects one cell to another - Ans:✔✔-true
Gap junctions in plant cells cannot close - Ans:✔✔-true
Nuclear lamins differs in all the different cell types of an organism - Ans:✔✔-false
Desmin is present in muscle cells - Ans:✔✔-true
In neurons, actin filaments are really intermediate filaments - Ans:✔✔-false
Intermediate filaments assemble and disassemble in a living cell - Ans:✔✔-false
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