EXTRA CELLULAR AND FLUID FEEDING

How a filter feeder obtains food:

Stream of water carries particles/food In through siphon Mucus on gills traps particles Cilia transport particles/water current (along food groove) towards mouth Enzymes in intestine breakdown food Carbohydrates absorbed as monomers

How a filter feeder creates a feeding current:

Cilia Beating/ moving rhythmically

Extra-cellular digestion:

Body consists of thin threads (hyphae) Hyphae secrete enzymes that diffuse through wall onto food Enzymes hydrolyse materials in food to monomers Monomers then absorbed into hyphae by F.D. and A.T. In fungi (e.g. saprophytic fungi), cilia not involved in moving food

Summary Table

	Saprophytic fungus	Filter feeding mollusc	Mammal
Cilia involved in moving food	Incorrect	Correct	Incorrect
Organism prduces digestive enzymes	Correct	Correct	Correct
Carbohydrates absorbed into cells as monomers such as glucose	Correct	Correct	Correct

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