What advice should you give to a person exercising on a very hot day? Remember to wear lots of clothes so you can sweat off more weight! Take a lot of breaks, and remember to drink fluids! Don't drink anything, it will give you cramps. Go all out! A hot day is the best time to try for a personal best.

An enzyme lowers the energy of activation. what does that mean?

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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