Question

question 5
the diagram at the top of this article demonstrates that-
photosynthesis gives off water and carbon dioxide.
photosynthesis uses energy to make oxygen and sugars.
cellular respiration gives off atp as a waste product.
cellular respiration needs water and carbon dioxide.

Explanation:

• Photosynthesis is the process by which plants use light energy (from the sun) to convert carbon dioxide ($CO_2$) and water ($H_2O$) into glucose (a sugar, $C_6H_{12}O_6$) and oxygen ($O_2$). The general equation for photosynthesis is \(6CO_2 + 6H_2O+light\ energy

ightarrow C_6H_{12}O_6 + 6O_2\).

• Let's analyze each option:
• Option 1: Photosynthesis takes in carbon dioxide and water, not gives them off.
• Option 2: This is correct as per the photosynthesis equation.
• Option 3: ATP (adenosine tri - phosphate) is not a waste product of cellular respiration. It is the energy - carrying molecule.
• Option 4: Cellular respiration takes in oxygen and glucose and gives off carbon dioxide and water.

Answer:

photosynthesis uses energy to make oxygen and sugars.