Some plant cells take advantage of the high concentration of protons outside the cell to move solutes, such as sucrose, across the plasma membrane into the cell where the sucrose concentration is already relatively high. This type of transport is an example of:

a) secondary active transport.
b) osmosis.
c) passive transport.
d) facilitated diffusion.


Answer: a) secondary active transport.

Biology & Microbiology

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Indicate whether the statement is true or false

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Spicy foods often contain the chemical capsaicin, which activates certain receptors in the mouth, causing your mouth to feel like it is "burning." The receptors activated by capsaicin are also activated by

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