ANATOMY

GENERAL ANATOMY

DIGESTIVE SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Gastric juice is composed of:
A
Only mucus and enzymes
B
Only enzymes and hydrochloric acid and mucus
C
Only hydrochloric acid and mucus
D
Mucus, enzymes and hydrochloric acid
Explanation: 

Detailed explanation-1: -Asides from squeezing and churning the food bolus, it also secretes a mixture of compounds, collectively known as “gastric juice.” Gastric juice comprises water, mucus, hydrochloric acid, pepsin, and intrinsic factor. Of these five components, pepsin is the principal enzyme involved in protein digestion.

Detailed explanation-2: -Gastric juice is a unique combination of hydrochloric acid (HCl), lipase, and pepsin. Acidic gastric juice is found in all vertebrates, and its main function is to inactivate microorganisms.

Detailed explanation-3: -Gastric juice is made up of digestive enzymes, hydrochloric acid and other substances that are important for absorbing nutrients – about 3 to 4 liters of gastric juice are produced per day. The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins.

Detailed explanation-4: -Gastric juice contains three substances: hydrochloric acid, enzyme pepsin and mucus.

Detailed explanation-5: -chyme, a thick semifluid mass of partially digested food and digestive secretions that is formed in the stomach and intestine during digestion. In the stomach, digestive juices are formed by the gastric glands; these secretions include the enzyme pepsin, which breaks down proteins, and hydrochloric acid.

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