Types of Energy

• Solar Energy - radiation from the sun

• Chemical Energy - biomolecules stored in food

• Usable Energy - ATP

ATP provides energy for all metabolic reactions

The bond between the third phosphate group and the rest of the molecule stores the energy

ATP - secure bond (fully-charged battery)

ADP - broken bond (half-charged battery)

Chemical Equation for Photosynthesis

$6 CO_2 + 6 H_2O\ +$ Sunlight → $C_6H_{12}O_6 + 6O_2$

Chlorophyll - light-absorbing pigment

• Eukaryotes - photosynthesis in chloroplasts (contain chlorophyll)

• Prokaryotes - photosynthesis in chlorophyll in the cell membrane

Stomata - pores that allow gas entry/exit (like oxygen and carbon dioxide)

Roots - allow water transfer from soil