Biology Questions?

[$@r@h]

Please help me you will get the best answer if u helped me.

So we Start

1-How does chewing affect your body's ability to release the chemical change of food

2- What is the source of energy for the photosynthesis reactions and where do they take place in a cell?

3- Give examples of each of the four types of organic molecules and why they are needed in a plant cell

4- Trace the path of how oxygen molecules are produced in a plant cell to how they used in human cell

Thank-You
Hope you'll help me