Question

The gastric juice is composed of:

 

A) Pepsin

B) Hydrochloric Acid

C) Mucus

Choose the correct answer.

1. A and B
2. B and C
3. A and C
4. All of these

Answer 1

Correct Answer - Option 4 : All of these

The Correct answer is All of these.

Gastric glands-

• The glands present in the walls of the stomach are known as "Gastric Glands".
• Gastric glands secrete "Gastric Juice" which is composed of 3 main components:
  • Pepsin
  • Hydrochloric Acid
  • Mucus
• The enzyme 'Pepsin' is required for the conversion of Proteins into Amino Acids.
• This Conversion requires an acidic medium which is provided by a highly concentrated hydrochloric acid (HCL).
• Mucus helps in the prevention of any injury to the wall of the stomach due to highly concentrated HCL. (mucus is a sticky, thick Alkaline secretion that protects walls of the stomach from concentrated HCL).
• It shows, all three components of gastric juice are required for digestion.
• The stomach secretes some amount of Lipase enzyme, which helps in the digestion of fat.
• Gastric glands in infants secrete an enzyme named 'Renin'. 
  • It plays a role in the digestion of milk proteins of mothers milk. (Conversion of casein to paracasein).