Driving question: How does ecosystem deal with animal and plants after they died?

Flow chart of decomposing process Dead plant/animal (large organic molecules) Minerals (from soil) Flow chart of decomposing process Digestion Digestion Inorganic matter (H2O , CO2, minerals) Small organic molecules Biosynthesis Back to ecosystem system Decomposer biomass (large organic molecules) Cellular Respiration Fungi take in minerals from soil, like plants  Revised it H2O & CO2 For decomposers growth For decomposers living

Three types of decomposers Another decomposer – Invertebrates One common decomposer: Fungi Crucial decomposers: bacteria and microscopic fungi

The structure of mushroom cap gill stem hypha mycelium Mycelium part should be bigger than mushroom Are mushroom plants?

Digestion part

How do mushrooms grow? Switch our focus from cap of mushroom to mycelium

Matter movement for digestion at macroscopic scale Large scale scales scales Macroscopic To show large organic molecule do not move Microscopic Atomic molecular Matter Process Material identity Matter Movement Analyzing Digestion Biosynthesis Energy All All Cellular respiration Energy transformation Blank

Large Organic molecules Matter transformation for digestion at macroscopic scale Large scale Large Organic molecules Small Organic molecules scales scales Macroscopic Microscopic Atomic molecular Matter Process Material identity Matter Movement Analyzing Digestion Biosynthesis Energy All All Cellular respiration Energy transformation Blank

Energy transformation for digestion at macroscopic scale Large scale Heat Chemical energy scales scales Macroscopic Chemical energy Microscopic Atomic molecular Matter Process Material identity Matter Movement Analyzing Digestion Biosynthesis Energy All All Cellular respiration Energy transformation Blank

Large Organic molecules Digestion at macroscopic scale Large scale Heat Chemical energy Chemical energy Large Organic molecules scales scales Macroscopic Small Organic molecules Microscopic Atomic molecular Matter Process Material identity Matter Movement Analyzing Digestion Biosynthesis Energy All All Cellular respiration Energy transformation Blank

What happens for digestion at microscopic scale ? Fungal hypha Plants’ or animals’ dead cell

Matter movement for digestion at microscopic scale sugar Large scale Macroscopic scales scales Microscopic Atomic molecular Matter Process Material identity Matter Movement Analyzing Digestion Biosynthesis Energy All All Cellular respiration Energy transformation Blank

Matter transformation for digestion at microscopic scale Large scale Fungal hypha Sugar Macroscopic scales scales Simplify the digestion process: zooming in part of intestine (food from digestion to the blood) Simplify : muscle in the leg growing Plants’ or animals’ dead cell Microscopic Atomic molecular Matter Process Material identity Matter Movement Analyzing Digestion Biosynthesis Energy All All Cellular respiration Energy transformation Blank

Energy transformation for digestion at microscopic scale Large scale Fungal hypha Heat Macroscopic Chemical energy scales scales Chemical energy Simplify the digestion process: zooming in part of intestine (food from digestion to the blood) Simplify : muscle in the leg growing Plants’ or animals’ dead cell Microscopic Atomic molecular Matter Process Material identity Matter Movement Analyzing Digestion Biosynthesis Energy All All Cellular respiration Energy transformation Blank

Digestion at microscopic scale Heat Large scale Chemical energy Chemical energy Macroscopic Sugar scales scales Simplify the digestion process: zooming in part of intestine (food from digestion to the blood) Simplify : muscle in the leg growing Microscopic Atomic molecular Matter Process Material identity Matter Movement Analyzing Digestion Biosynthesis Energy All All Cellular respiration Energy transformation Blank

What happens for digestion at atomic-molecular scale ? Zooming into three different system: digestion, blood, muscles

Matter transformation for digestion at atomic-molecular scale Large scale Macroscopic Starch & cellulose Sugar Microscopic scales scales Simplify the digestion process: zooming in part of intestine (food from digestion to the blood) Simplify : muscle in the leg growing Protein amino acids Atomic molecular Matter Process Material identity Matter Movement Analyzing Digestion Biosynthesis Energy All Cellular respiration Energy transformation Blank

Matter movement for digestion at atomic-molecular scale Large scale Macroscopic Microscopic scales scales Simplify the digestion process: zooming in part of intestine (food from digestion to the blood) Simplify : muscle in the leg growing Click to see animation Atomic molecular Matter Process Material identity Matter Movement Analyzing Digestion Biosynthesis Energy All Cellular respiration Energy transformation Blank

Energy transformation for digestion at atomic-molecular scale Large scale Heat Macroscopic Chemical energy Microscopic scales scales Chemical energy Simplify the digestion process: zooming in part of intestine (food from digestion to the blood) Simplify : muscle in the leg growing Atomic molecular Matter Process Material identity Matter Movement Analyzing Digestion Biosynthesis Energy All Cellular respiration Energy transformation Blank

Digestion at atomic-molecular scale Heat Large scale Chemical energy Chemical energy Macroscopic Starch & cellulose Sugar Microscopic scales scales Simplify the digestion process: zooming in part of intestine (food from digestion to the blood) Simplify : muscle in the leg growing Protein amino acids Atomic molecular Matter Process Material identity Matter Movement Analyzing Digestion Biosynthesis Energy All Cellular respiration Energy transformation Blank