Question

which organ in the digestive system is the main absorptive site where digested end particles are uptaken into the blood stream?
a pancreas
b stomach
c large intestine
d small intestine

Explanation:

The small intestine has a large surface area due to its length and the presence of villi and microvilli. This structure allows for efficient absorption of nutrients (digested end - particles) into the bloodstream. The pancreas is mainly involved in producing digestive enzymes and hormones. The stomach mainly functions in digestion (mechanical and chemical, like protein digestion by pepsin). The large intestine's main role is water absorption and forming feces, not the main site for absorption of most digested nutrients.

Answer:

D. Small intestine