Compare Photosynthesis and Cellular Respiration - Practice 2

Photosynthesis stores energy in organic molecules using light in the cases here.

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Photosynthesis stores energy in organic molecules using light in the cases here. Aerobic cellular respiration transfers energy from organic molecules into usable forms such as ATP, using oxygen. Plants perform respiration too; they do not only photosynthesize.

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A green plant can make sugars by photosynthesis and use some of those sugars in cellular respiration.

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An oxygen molecule, O2, contains two atoms but only one kind of element. Counting atoms and counting elements answer different questions.

Question 1 A diagram shows light, CO2 and water leading to sugar and oxygen. What process is modeled? no biological process photosynthesis aerobic respiration

Question 2 A diagram shows sugar and oxygen leading to CO2, water and transferred energy. What process is modeled? aerobic respiration photosynthesis no biological process

Question 3 Does darkness mean a living plant necessarily stops cellular respiration? Yes; all metabolism stops. Yes; only animals respire. No; respiration can continue in darkness.

Question 4 Which model stores incoming light energy in organic molecules? neither process photosynthesis aerobic respiration

Question 5 Which model transfers energy from sugar into ATP and other forms? cellular respiration photosynthesis only neither process

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