1 Which of the following statements apply both to enzymes and to any other catalysts?
a Their activity is stopped by high temperature.
b They speed up chemical reactions.
C They are proteins.
d They are not used up during the reaction.

i think that d. wind is the answer.   i missed the question when i answered a. currents.

passive transport is a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input. unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy.

so, according to what that says, i believe it's hypertonic and hypotonic.

good luck!