Send help Which vessel must be thicker and more muscular to withstand greater
amounts of pressure from the heart?*
aorta
pulmonary vein
inferior vena cava
pulmonary artery

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

How does photosynthesis show the conservation of mass and energy?

What molecule contains an organisms genetic material, passed down from parents to their offspring