The primary cilium:

a. is nonmotile because it lacks the "central pair" of microtubules.
b. is relatively susceptible to microtubule destabilizing drugs like colchicine.
c. has no known role in humans.
d. None of the answers is correct.

1. environmental factors, such as ph and temperature, can affect the function of an enzyme. a. true b. false 2. which of the following is an organic molecules (ex. vitamins) that an enzyme? a. coenzyme b. product c. active site d. substrate 3. how do enzymes effect the speed of a chemical reaction? a. they speed it up b. they slow it down c. they have no effect on the speed of a reaction 4. during a chemical reaction, an enzyme is used up so that it can only be used one time. a. true b. false 5. which of the following results from a chemical reaction that is catalyzed by an enzymes? a. active site b. product c. substrate d. coenzyme

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

Which mechanism of transport takes place when solute particles move from a region of high concentration to a region of low concentration? active diffusion isotonic osmosis