Identify the organs labeled I-IV and V-VI and describe their functions. Where does protein digestion begin? Where do the end-products of digestion and water get absorbed? Where does egestion occur?

i)

• I: Pharynx
• II: Esophagus
• III: Stomach
• IV: Liver

ii)

• V (Gallbladder): Stores and concentrates bile.
• VI (Pancreas): Produces digestive enzymes (e.g., amylase, lipase, proteases) and hormones (e.g., insulin).

iii)
The digestion of protein starts in the stomach (part III).

iv)
$\alpha$) Absorption of end-products of digestion takes place in the small intestine (part VII).
$\beta$) Re-absorption of water takes place in the large intestine (part VIII).
$\gamma$) Egestion takes place through the anus (part X).