Which of the Following Is Normally the Major Source of Hydrogen

question 48

Multiple Choice

Which of the following is normally the major source of hydrogen ions in the body?

• A)phosphoric and sulphuric acids formed during metabolism of dietary proteins
• B)lactic acid production by muscles during exercise
• C) carbonic acid generated from metabolically produced CO₂
• D) natural acids found in foods, such as citric acid

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Definitions:

Duodenum

The first section of the small intestine immediately beyond the stomach, where the majority of chemical digestion takes place.

Gallbladder

A small, pear-shaped organ located beneath the liver, which stores and concentrates bile, a digestive enzyme produced by the liver.

Salivary Glands

Glands located in the mouth that produce saliva, which begins the process of digestion and keeps the mouth and other parts of the digestive system moist.

Mouth

The opening in an organism's body that usually begins the digestive tract, where food is ingested.