HUMAN NUTRITION

NUTRITION

DIGESTIVE SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The function of bicarbonate ions in the digestive system is to
A
neutralize the acid found in chyme
B
break down sugars
C
aid in the transport of carbon dioxide
D
aid in the production of urea
Explanation: 

Detailed explanation-1: -When the acidic chyme enters into the small intestine from stomach, stomach secretes bicarbonate ions in a large amount in the intestine. It acts as a buffer to break down and dilute the acidic content and increases the pH of the chyme. So, that pancreatic digestive enzyme becomes active for further digestion.

Detailed explanation-2: -The pancreas secretes bicarbonate that neutralizes the acidic chyme and a variety of enzymes for the digestion of protein and carbohydrates.

Detailed explanation-3: -Bicarbonate is a substance called a base, which the body needs to help keep a normal acid-base (pH) balance. This balance prevents your body from becoming too acid, which can cause many health problems. The lungs and kidneys keep a normal blood pH by removing excess acid.

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