Question

1. what are the reactants of photosynthesis?

a. atp and sunlight b. glucose and oxygen
c. carbon dioxide and water d. oxygen and water

1. which equation correctly represents cellular respiration?

a. co₂ + h₂o → c₆h₁₂o₆ + o₂ b. c₆h₁₂o₆ + o₂ → co₂ + h₂o + energy
c. h₂o + o₂ → co₂ + glucose d. c₆h₁₂o₆ → co₂ + sunlight

Explanation:

• For question 2: Photosynthesis is the process by which plants use light energy to convert carbon dioxide (\(CO_2\)) and water (\(H_2O\)) into glucose (\(C_6H_{12}O_6\)) and oxygen (\(O_2\)). So the reactants (substances that start the reaction) are carbon dioxide and water.
• For question 3: Cellular respiration is the process of breaking down glucose (\(C_6H_{12}O_6\)) in the presence of oxygen (\(O_2\)) to release energy, along with the production of carbon dioxide (\(CO_2\)) and water (\(H_2O\)).

Answer:

1. C. carbon dioxide and water
2. B. \(C_6H_{12}O_6 + O_2

ightarrow CO_2 + H_2O+\text{energy}\)