Some questions must be answered with a cross in a box . If you change your mind about an
answer, put a line through the box and then mark your new answer with a cross .
1 Temperature is one factor that affects the rate of photosynthesis.
A student investigated the effect of temperature on the rate of electron transport and
the mean activity of the enzyme RUBISCO in the chloroplasts of a leaf.
The graph below shows the results of this investigation.
Put a cross in the box next to the location of electron transport in the
chloroplast.
A matrix
B outer membrane
C stroma
D thylakoid membrane
The only correct answer is C
A is not correct because the chloroplasts are in the cytoplasm
B is not correct because the matrix is found in mitochondria not chloroplasts
D is not correct because the tonoplast surrounds the vacuole