Select True or False in the following statements regarding photosynthesis and respiration.
1. Photosynthesis occurs only in the presence of chlorophyll. 2. Photosynthesis occurs at all time. 3. Respiration uses carbon dioxide and water. 4. In respiration carbon dioxide is released as end product.
The oxygen that is released as O2 during photosynthesis came from _____________ molecules.
What is needed for photosynthesis in which carbon dioxide and water react in the presence of chlorophyll to produce glucose and oxygen?