Which terms refers to the movement of molecules from an area of higher concentration to an area of lower concentra- tion? what happens during photosynthesis? plz

Diffusion.

Two protein categories assist the movement of molecules from higher concentration to lower concentration; carrier protein and channel protein.

Small molecules and ions pass through protein channel and large molecules such as amino acids and sugars pass through protein carrier.  

Photosynthesis

Photosynthesis is a chemical process used by plants to make food (glucose). It happens in parts of plants when chloroplast is present abundantly. Plants use CO2, water, and sunlight to make their food.

CO2+ H2O+ sunlight → C6H12O6+ 6O2+ 6H2O

explanation:

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

b. heterotroph

explanation: