Brain Pop Is this individual a consumer or a producer? Explain why.

Lecture… Plants are producers

Objectives Discuss how plants utilize the 3 main components in order to create the process of Photosynthesis Distinguish between Autotrophs and Heterotrophs See the similarity between the chemical equation of Photosynthesis and Cellular Respiration Explain the mutualistic relationship between plants and animals

Plants capture energy from.. Where do plants get their energy? The Sun’s heat and light give energy to all organisms Yet, this energy cannot directly start cell processes, it has to be changed into chemical energy Plants capture energy from the sun… and convert it into chemical energy

Sun enters the ecosystem Through Photosynthesis Photosynthesis: plants use sunlight to form sugar molecules (chemical energy) called carbohydrates Sugar molecules are made by plants taking in water and carbon dioxide (taken in by leaves) Oxygen is produced (given off) by plants Plants are producers

From Producers… An organism that makes its own food Autotrophs: Known as a self feeder. Do not need food from other organisms Examples: plants, trees, wheat

Chemical Equation Photosynthesis H2O= water 6CO2 + 6H2O+ solar energy C6H12O6+6O2 CO2(carbon dioxide) H2O= water C6H12O6= carbohydrates (glucose) O2= oxygen

Storing and Releasing Energy Plants are not alone, algae, protists and bacteria also go through photosynthesis Since plants are multicellular (more than one cells), they can store more energy Half of plant’s energy is stored as starch(carbs)

Cellular Respiration… Process of breaking down food to produce energy Cells use oxygen to release energy from food Excess energy is stored as starch Stimulus- produces a response from an organism C6H12O6+6O2 6CO2 + 6H2O+ energy

Seasons Some plants go through dormancy in harsh months (winter) Stop growing and require less energy

Class Assignment- Photo (5 mins) Explain why plants do not need to consume (eat) food?