Photosynthesis

https://www.youtube.com/watch?v=pFaBpVoQD4E

Science - Amazing Process Of Photosynthesis

1. Which best describes the activity of autotrophs?

They use sunlight to break down large complex, energy-rich organic molecules
They convert carbon dioxide and water into complex, energy-rich organic molecules
They use the energy harvested by other photosynthesizers
The use the energy harvest by heterotrophs

2. Which is released as a byproduct of photosynthesis?

carbon dioxide
carbon
oxygen

water

3. Why do we perceive chlorophyll as being green?

Because it is green.
Because it absorbs green light.
Because it reflects green light.
Because it absorbs yellow light.

4. Which would you expect to increase the rate of photosynthesis?

incresing the carbon dioxide concentration
decreasing the intensity of exposure to red light
increasing the oxygen concentration
decreasing the duration of exposure to red light

5. Which could be used to monitor the rate of photosynthesis in a plant?

carbon dioxide production
water production
oxygen production

hydrogen production