Question

which is the relationship between photosynthesis and cellular respiration?
cellular respiration makes the glucose that is needed by photosynthesis.
photosynthesis makes the glucose that is broken down by cellular respiration.
cellular respiration converts the glucose that is made by photosynthesis to oxygen.
photosynthesis converts the glucose that is made by cellular respiration to carbon dioxide.

Explanation:

• Option 1: Cellular respiration does not make glucose. Glucose is made by photosynthesis.
• Option 2: Photosynthesis produces glucose (\(C_6H_{12}O_6\)) using \(CO_2\), water (\(H_2O\)) and sunlight. Cellular respiration breaks down glucose (in the presence of \(O_2\)) to release energy (in the form of ATP), \(CO_2\) and \(H_2O\).
• Option 3: Cellular respiration converts glucose (along with \(O_2\)) to \(CO_2\) and \(H_2O\), not to oxygen.
• Option 4: Photosynthesis converts \(CO_2\) and \(H_2O\) to glucose (and \(O_2\)), not the other way around as stated.

Answer:

Photosynthesis makes the glucose that is broken down by cellular respiration.