2.The process of cell respiration is carried out by (a)Mitochondria (b)Chloroplast (c)Nucleus (d)None of the above

What would be the most likely result if the ph of the stomach were increased to 5

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

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.