Digestion 3070

Honelako gehiago

Digestive system(Evelyn)

Evelyn GotBite‑k egina

Eggs are a rich source of protein,which has many uses in food preparation.Prepare a nutritious and interesting one-dish meal with the use of eggs for a group of people.

Timothy Wong‑k egina

1. Taking care of a pet

Nelly Enlund‑k egina

Digestion

Woon Kiat‑k egina

Digestion

Why do we need food?

Food = Nutritional Molecules

1. Fuel
2. Building blocks (synthesis during tissue growth/cell turnover)

Feeding Mechanisms

DEPOSIT FEEDERS (detritivory)

CARNIVORES

HERBIVORES

SUSPENSION/ FILTER FEEDING

sessile aquatic animals, sponges, hydra

ENDOCYTOSIS

pgagocytosis or phenocytosis

amoeba

SURFACE ABSORPTION

taenia

Animals can either wait or forage for food

Problems: Undernourishment vs Overnourishment