In human digestive system, the enzymes pepsin and trypsin are secreted respectively by :
(a) pancreas and liver
(b) stomach and salivary glands
(c) pancreas and gall bladder
(d) stomach and pancreas
Pepsin and Trypsin and
option d, stomach and pancreas both protein-digesting enzymes. Pepsin is secreted in the stomach by peptic cells in its inactive form- pepsinogen. Pepsinogen gets activated by the hydrochloric acid present in the stomach. Similarly, Trypsin is secreted by the pancreas in its inactive form- Trysogen.