Answer questions

1. Photosynthesis is an energy transformation reaction. Photosynthesizers transform KINETIC / POTENTIAL (CHOOSE ONE) energy of sunlight into the KINETIC / POTENTIAL (CHOOSE ONE) energy of sugar/glucose. Organisms that perform photosynthesis to make their own food are called AUTOTROPHS / HETEROTROPHS (CHOOSE ONE). 2. Examine the chemical equation for photosynthesis (see previous page): a. The 2 reactants (substrates) required for photosynthesis are and b. From where in the environment does a plant obtain these 2 reactants? c. Byproducts of a chemical reaction are the molecules released or given off by the organism because they are NOT the desired product of the reaction. Which molecule does photosynthesis release as a byproduct? 3. Cellular respiration is an energy transformation reaction. During cellular respiration the KINETIC / POTENTIAL (CHOOSE ONE) energy of glucose is transformed into the KINETIC / POTENTIAL (CHOOSE ONE) energy of ATP. Organisms that must CONSUME food in order to obtain the glucose required for cellular respiration are called AUTOTROPHS / HETEROTROPHS (CHOOSE ONE). 4. Examine the chemical equation for cellular respiration (see previous page): a. The 2 reactants (substrates) required for cellular respiration are and b. How does an organism obtain these 2 reactants? hint: how do YOU obtain them? Focus