Sodium ions are "pumped" from a region of lower concentration to a region of higher concentration in the nerve cells of humans. this process is an example of—

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

What is a traditional chinese touch therapy involving finger pressure applied to specific areas of the body to restore the flow of qi.

The idea of spontaneous generation was disproved by in a experiment involving jars of meat