Bio 353 Exam 1 – ASU Questions and
Answers 100% Pass
Actin filaments: - ✔✔have a diameter of 7 nm and contain 375 amino acids
Actin filaments will - ✔✔two of the above: undergo treadmilling in a living cell. and
never reach equilibrium
The number of amino acids in an actin monomer is - ✔✔375
Hydrolysis of ATP to ADP - ✔✔helps identify the assembly vs the disassembly end
Actin filaments associate with a nucleotide triphosphate. - ✔✔true
Treadmilling of actin filaments only occurs in a test tube - ✔✔false
Preassembled nucleaton sites in a living cell are equivalent to the intracellular
preference for actin filaments - ✔✔true
Intracellular preference for actin filaments - ✔✔is a way to look at the geography of the
cell and show where the role of actin filaments is important.
The ability of actin filaments to disassemble into small monomers - ✔✔two of the above
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, What causes a myosin II molecule to be able to form a bipolar fiber - ✔✔Calcium
binding to calmodulin.
The diameter of the actin filament is ...... nm - ✔✔7
Actin filaments will only assemble in parallel bundles - ✔✔false
The ability of actin filaments to disassemble into small monomers - ✔✔enables the
building blocks of actin filaments to move from one side of the cell to the other.
Transmembrane Proteins - ✔✔can move laterally and cannot flip 180˚ in the membrane.
From the following, where would a proline residue be least likely to be? - ✔✔in the
middle of an alpha helix
The presence of 2 disulfide bonds near each other is a good thing when a stretch of
protein is to be immobilized. - ✔✔true
Submembrane cytoskeletons can provide shape to a cell - ✔✔true
Beta pleated sheets can provide a unique environment on one side of the sheet relative
to the other side of the sheet because of the types of side groups that can accumulate
there. - ✔✔true
The empty center of a single pass transmembrane protein provides a channel for the
transport of ions. - ✔✔false
Katelyn Whitman, All Rights Reserved © 2025 2
Answers 100% Pass
Actin filaments: - ✔✔have a diameter of 7 nm and contain 375 amino acids
Actin filaments will - ✔✔two of the above: undergo treadmilling in a living cell. and
never reach equilibrium
The number of amino acids in an actin monomer is - ✔✔375
Hydrolysis of ATP to ADP - ✔✔helps identify the assembly vs the disassembly end
Actin filaments associate with a nucleotide triphosphate. - ✔✔true
Treadmilling of actin filaments only occurs in a test tube - ✔✔false
Preassembled nucleaton sites in a living cell are equivalent to the intracellular
preference for actin filaments - ✔✔true
Intracellular preference for actin filaments - ✔✔is a way to look at the geography of the
cell and show where the role of actin filaments is important.
The ability of actin filaments to disassemble into small monomers - ✔✔two of the above
Katelyn Whitman, All Rights Reserved © 2025 1
, What causes a myosin II molecule to be able to form a bipolar fiber - ✔✔Calcium
binding to calmodulin.
The diameter of the actin filament is ...... nm - ✔✔7
Actin filaments will only assemble in parallel bundles - ✔✔false
The ability of actin filaments to disassemble into small monomers - ✔✔enables the
building blocks of actin filaments to move from one side of the cell to the other.
Transmembrane Proteins - ✔✔can move laterally and cannot flip 180˚ in the membrane.
From the following, where would a proline residue be least likely to be? - ✔✔in the
middle of an alpha helix
The presence of 2 disulfide bonds near each other is a good thing when a stretch of
protein is to be immobilized. - ✔✔true
Submembrane cytoskeletons can provide shape to a cell - ✔✔true
Beta pleated sheets can provide a unique environment on one side of the sheet relative
to the other side of the sheet because of the types of side groups that can accumulate
there. - ✔✔true
The empty center of a single pass transmembrane protein provides a channel for the
transport of ions. - ✔✔false
Katelyn Whitman, All Rights Reserved © 2025 2
