Scientists' understanding of the role and function of DNA has built up over time. How did the findings from Hershey and Chase's
bacteriophage experiments likely influence the Meselson-Stahl
experiment, and how might Meselson and Stahl's results help
scientists understand how damaged DNA can be inherited by future
generations?

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

Which best describes carbon dioxide’s path out of the body

Which component in a graph indicates an independent factor? a. y-axis b. x-axis c. scale