In which part of the human body the bacteria are normally present in abundance:
Correct answer: C. Intestine
- A. Salivary gland
- B. Stomach
- C. Intestine
- D. Liver
Explanation
While bacteria are found in the mouth, they are not found within glands like the salivary gland. Therefore, A is incorrect. Bacteria are not found in the stomach since one purpose of the HCl secreted is to kill any bacteria that find their way to the stomach. Therefore, B is incorrect. Bacteria are found in the intestines, especially in abundance in the large intestine. Bacteria in the large intestine have important roles, such as producing vitamins and controlling the growth of harmful bacteria. Therefore, C is correct. Bacteria are usually not found within organs like the liver.
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About Human Digestive System
The human digestive system breaks food into absorbable molecules through mechanical processing, enzyme action and chemical conditions along the alimentary canal. Questions cover the mouth, stomach, small and large intestines, liver, pancreas and associated secretions, including the digestion and absorption of carbohydrates, proteins, lipids, vitamins, minerals and water.
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