The Simplest and the Original Assumption About Step Size for Molecular

question 52

Multiple Choice

The simplest and the original assumption about step size for molecular motors was that as the motor protein walked along the actin or microtubule polymer it would step__________.

• A)10 nm for every ATP that was hydrolyzed whether it was traveling along actin or tubulin
• B)the distance of one tubulin dimer or actin subunit for every 2 ATPs that were hydrolyzed
• C)the distance of three tubulin dimers or actin subunits for every ATP that was hydrolyzed
• D)varying distances along the cytoskeletal polymer for every ATP that was hydrolyzed
• E)the distance of one tubulin dimer or actin subunit for every ATP that was hydrolyzed

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