©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
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 ATPases
Dynein is a molecular motor that: - Ans:✔✔-moves cargo to the centrosome
To move cargo from one side of the cell to the other, the sequence would be in the following order: -
Ans:✔✔-dynein, centrosome, kinesin
The electron dense cloud surrounding the centrioles in animal cells contains nucleation sites for -
Ans:✔✔-MTs made of gamma tubulin
The 9+0 configuration refers to......, and is found only in ........cells. - Ans:✔✔-centrioles, animal
At steady state equilibrium, microtubules in a test tube have a ....... and .....end. - Ans:✔✔-assembly,
disassembly
Page 1/5
, ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
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
Page 2/5
FIRST PUBLISH OCTOBER 2024
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 ATPases
Dynein is a molecular motor that: - Ans:✔✔-moves cargo to the centrosome
To move cargo from one side of the cell to the other, the sequence would be in the following order: -
Ans:✔✔-dynein, centrosome, kinesin
The electron dense cloud surrounding the centrioles in animal cells contains nucleation sites for -
Ans:✔✔-MTs made of gamma tubulin
The 9+0 configuration refers to......, and is found only in ........cells. - Ans:✔✔-centrioles, animal
At steady state equilibrium, microtubules in a test tube have a ....... and .....end. - Ans:✔✔-assembly,
disassembly
Page 1/5
, ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
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
Page 2/5
