A protein that has been transported past the outer chloroplast membrane would have to pass how many more membranes to reach the stroma and thylakoid lumen,respectively?
A)0,1
B)1,2
C)2,3
D)3,4

Question

Quizplus · Accepted Answer

The protein would have to pass through the inner chloroplast membrane to reach the stroma and through the thylakoid membrane to reach the thylakoid lumen, therefore it would have to pass 1 more membrane for each location. So the total membranes it would have to pass through are 1+1=2. Therefore, choice B (1,2) is the correct answer.

A Protein That Has Been Transported Past the Outer Chloroplast