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In some cells, sucrose can enter against its concentration gradient

August 18, 2020/in Feeds /by admin

In some cells, sucrose can enter against its concentration gradient
by means of a sucrose/proton symporter, as shown in the membrane transport figure. The proton concentration inside the cell (left side of diagram) is kept lower than that outside the cell (right side of diagram) by a pump that uses ATP to move protons from the inside to the outside (right). What if anything would be the effect on the rate of sucrose transport if the concentration of calcium cations inside the cell were increased, and no other starting conditions were changed?
membrane transport.pdf
A.sucrose transport would decrease
B.it is not possible to tell with the information that is given
C.sucrose transport would increase
D.sucrose transport would be unaffected