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

---

Definitions:

Arrested Growth

A halt or significant slowdown in the development or expansion of something, often due to external factors.

Pottery

The craft or profession of making objects from clay, which are then hardened by heat, widely used for cooking, storage, and decorative purposes throughout human history.

Sedentary Society

A society whose members settle in one place, establishing permanent homes and communities, as opposed to nomadic lifestyles.

Neolithic Transition

The period marking the shift from hunter-gatherer societies to agricultural communities, leading to the development of settled life and the beginnings of civilization.