Question

1. How often are cells lining the intestinal tract replaced?

   	1.	Every 120 days
   	2.	Every 1 to 3 days
   	3.	Every month
   	4.	Every 7 days

   
   

   Which of the following statements about ulcers is false?

   	1.	Ulcers occur most often in the duodenum, or upper part of the small intestine.
   	2.	Ulcers are can be treated with a variety of different medications and probiotics.
   	3.	Ulcers are associated with the presence of Helicobacter pylori.
   	4.	Ulcers occur most often in the esophagus.

   
   
   

2. Where are "villi" found in the body?

   	1.	In the esophagus
   	2.	In the stomach
   	3.	In the small intestine
   	4.	In the gallbladder

   
   

   What is the leading cause of iron-deficiency anemia in children?

   	1.	Exposure to lead
   	2.	Inadequate intake of dietary protein
   	3.	Inadequate intake of dietary iron
   	4.	Decreased iron absorption due to infection

Answer 1

Ans) Option 3. Every month

Explaination:

- A new liver every six weeks (a human liver can regenerate itself completely even if as little as 25% remains of it).

Ans) Option 4. Ulcers occur most often in the esophagus.

Explaination:

Ulcers most commonly occur in the first part of the small intestine below the stomach (duodenum), and can occur at the lower end of the esophagus or in the stomach.Most ulcers result from infection with bacteria called Helicobacter pylori (H. pylori).

Ans) Option 3. In the small intestine

Explaination:

Villi in the small intestine. Millions of tiny finger-like structures called villi project inwards from the lining of the small intestine. The large surface area they present allows for rapid absorption of digestion products.

Ans) Option 3. Inadequate intake of dietary iron

Explaination:

The most common causes of iron deficiency in children include insufficient intake together with rapid growth, low birth weight and gastrointestinal losses related to excessive intake of cow's milk.