Question

In which of the following test tubes digestion of
protein would not take place?

Pepsin+HCl+Protein (P)
Pepsin+Alkali+Protein (Q)
Trypsin+Alkali+Protein (R)
Trypsin+HCl+Protein (S)

(1) P and R (2) P and S
(3) Q and S (4) R and Q

Answer 1

Protein digestion takes place in human in two steps:

1.In the stomach where Pepsin acts for partial digestion of protein.
2.In small intestine ,Where Trypsin acts for digestion of protein.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 

# Pepsin is present in human as an inactive protein, which gets activated only in the presence of an acidic medium, such as HCl.

Hence option P is correct Q is false.

# Trypsin is present in human as an inactive protein, which gets activated in the presence of an basic medium, such as alkali.

Hence Option R is true S is false.
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 

The question is which one is false? .Hence  option Q and S is false.

OPTION 3 IS THE CORRECT OPTION.

Answer 2

Answer:

Correct  ans is option 3 i.e Q and S.

Explanation:

As pepsin acts in stomach which is acidic in nature due to HCl. While trypsin acts in an alkali medium and not in acidic medium.