If referring to photosynthesis, carbon dioxide is brought into the cholorplast of the plant cell, it is then fixed to RUBP, it will go through a series of Redox reactions and become G3P. RUBP is then recycled and is used to fix more carbon dioxide. You need two G3P molecules to become glucose.
All living things are made of cells, so yes, mushrooms are made of cells. :)
Answer: Sand, silt, and clay
A) Taiga
This is shown by the cold winters and the animal life in the example.