What are the answers to these multiple-choice questions about photosynthesis and plant biology?

Here are the correct answers for the multiple-choice questions:

1. Green plants are: (d) autotrophs. Green plants produce their own food through photosynthesis.

2. The gas produced during photosynthesis is: (a) oxygen. Oxygen is released as a byproduct of photosynthesis.

3. Which of these is a saprophyte? (b) mushroom. Mushrooms obtain nutrients from dead and decaying organic matter.

4. Which thing is required for photosynthesis? (b) sunlight. Sunlight provides the energy needed for photosynthesis.

5. Green pigment in leaves is called: (a) chlorophyll. Chlorophyll is the pigment responsible for absorbing light energy during photosynthesis.