Food has to be broken down into tiny bits before our body can absorb them. The digestive system does that. There are two kinds of digestions that happen in our body: mechanical digestion and chemical digestion.

Physical digestion tears food into smaller pieces by means of biting, cutting, chewing, grinding and swallowing. This is done with the teeth and tongue. Chemical digestion involves the use of enzymes. Enzymes help break down the food we eat by chemical reaction.
 
Click here to see the Digestive System.
 

Makanan mesti dihadamkan atau dicernakan (dipecahkan kepada bahagian-bahagian kecil) sebelum dapat diserap oleh badan kita. Terdapat dua jenis pencernaan: pencernaan fizikal dan pencernaan kimia.

Dalam pencernaan fizikal, makanan digigit, dipotong, dikunyah, dikisar dan ditelan. Ini dilakukan dengan gigi dan lidah.

Pencernaan kimia melibatkan penggunaan enzim. Enzim membantu memecahkan makanan dengan cara tindakan kimia.
 
Klik di sini untuk melihat Sistem Percernaan.