As macrophages crawl forward, they must bring molecules from the back of the cel

Question

As macrophages crawl forward, they must bring molecules from the back of the cell to the front using microtubule tracks. Which of the following allows the back ‘foot’ of kinesin to be thrown forward and take a ‘step’?

A.) ATP binding to the front foot

B.) ATP binding to the back foot

C.) ATP hydrolysis on the front foot

D.) ADP and Pi release on the front foot

A.) ATP binding to the front foot

B.) ATP binding to the back foot

C.) ATP hydrolysis on the front foot

D.) ADP and Pi release on the front foot

Explanation / Answer

Ans: (D)

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