Question

Match the digestive juices with the enzymes given under. Choose the choice which gives the correct combination of the alphabets of the two columns.

	List I (Digestive juices)		List II (Enzymes)
A	Saliva	p	Maltase
B	Gastric juice	q	Trypsinogen
C	Pancreatic juice	r	Ptyalin
D	Intestinal juice	s	Pepsin
		t	Cellulase

• A. A- r, B- s, C- q, D- p
• B. A- s, B- r, C- p, D- t
• C. A- r, B- t, C- p, D- q
• D. A- r, B- s, C- p, D- t

Answer 1

The correct option is A A- r, B- s, C- q, D- p

Salivary juice contains starch splitting enzyme amylase. The amylase of saliva is called as ptyalin. Pepsin is the major proteolytic enzyme of stomach. Pepsin is secreted as a proenzyme pepsinogen and is activated to pepsin on exposure to acid in stomach. Trypsin is a component of pancreatic juice where it is present as trypsinogen. Trypsinogen is activated to trypsin on exposure to enterokinase. The intestinal juice contains a number of disaccharidases like maltase, lactase, sucrase for splitting disaccharides into monosaccharides, which can be readily absorbed.