Question

Consider the following two statements:

a. Our stomach produces hydrochloric acid. It helps in digestion of food. During indigestion, the stomach produces too much acid causing pain and irritation.

b. Magnesium hydroxide (milk of magnesia) is often used in the above condition which is an analgesic.

Which is a completely correct statement?

1. Only a
2. Only b
3. Both a and b
4. Neither a nor b

Answer 1

Correct Answer - Option 1 : Only a

The correct answer is Only a. 

• The hydrochloric acid present in our stomach helps digestion. Too much acid produced in the stomach causes irritation in the lining of the stomach which results in pain. Hence, statement a is correct. 
• Magnesium Hydroxide which is also known as milk of magnesia is a common antacid that provides relief from irritation caused by acid in the stomach. Hence, statement b is incorrect.
  • It is basic in nature and that's why when it reacts with the acid in the stomach, it neutralizes the acid.
• Analgesic is any drug that relieves pain selectively without blocking the conduction of nerve impulses, markedly altering sensory perception, or affecting consciousness.

• The stomach is the main part of the digestive system in humans. It secretes mucous, hydrochloric acid and other digestive juices. 
  • Mucous protects the lining of the stomach.
  • Acid kills the bacteria present in the food.
  • Juices breaks down proteins into simpler substances.
• The opening of the stomach is a muscle sphincter that controls the opening and closing of esophagus into the stomach.
• Food is stored in the stomach after churning and mixing with acidic gastric juices, it is called Chyme.
• HCl gets converted into Pepsin which breaks down protein into amino acids.