1. Photosynthesis & Respiration
Energy from the Sun:
Radiant Energy: energy that travels through empty space
e.g. -ultraviolet
radiation
-visible
radiant
energy
LG: to describe cell respiration & photosynthesis with respect to energy flow & matter cycling within ecosystems

2. Photosynthesis & Respiration
Light Energy: visible forms of radiant energy
(ROYGBIV)
-70% is absorbed and converted into thermal energy
LG: to describe cell respiration & photosynthesis with respect to energy flow & matter cycling within ecosystems

3. Photosynthesis & Respiration
Thermal Energy: the form of energy transferred during heating or cooling
-also called infra-red radiation
-thermal energy keeps the Earth warm enough for life to exist.
LG: to describe cell respiration & photosynthesis with respect to energy flow & matter cycling within ecosystems

4. Photosynthesis & Respiration
Photosynthesis: the process in which the Sun's energy is converted into chemical energy
LG: to describe cell respiration & photosynthesis with respect to energy flow & matter cycling within ecosystems

5. Photosynthesis & Respiration
Photosynthesis: the process in which the Sun's energy is converted into chemical energy
Producer: an organism that makes its own energy-rich food compounds using sunlight
LG: to describe cell respiration & photosynthesis with respect to energy flow & matter cycling within ecosystems

6. Photosynthesis & Respiration
Photosynthesis: the process in which the Sun's energy is converted into chemical energy
chemical reaction:
sunlight
carbon + water sugar + oxygen
dioxide
-the sugar contains stored chemical energy in the chemical bonds of the molecule
LG: to describe cell respiration & photosynthesis with respect to energy flow & matter cycling within ecosystems

7. Photosynthesis & Respiration
Cell Respiration: the process by which the energy from sugar is converted into useable energy in cells
chemical reaction:
sugar + oxygen energy + carbon + water
dioxide
-all living cells do cell respiration to obtain energy
LG: to describe cell respiration & photosynthesis with respect to energy flow & matter cycling within ecosystems

8. Photosynthesis & Respiration
LG: to describe cell respiration & photosynthesis with respect to energy flow & matter cycling within ecosystems

9. Photosynthesis & Respiration
Consumer: an organism that obtains its energy by consuming other organisms
LG: to describe cell respiration & photosynthesis with respect to energy flow & matter cycling within ecosystems