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Questions and Answers

The small intestine is responsible for the digestion of food only.

False (B)

What is the main function of the small intestine?

  • Absorption of nutrients (correct)
  • Secretion of enzymes
  • Digestion of proteins only
  • Mechanical breakdown of food

What are the three sections of the small intestine?

Duodenum, Jejunum, Ileum

The process of moving food through the intestines is known as __________.

<p>peristalsis</p> Signup and view all the answers

Which mechanism is primarily responsible for nutrient absorption in the small intestine?

<p>All of the above (D)</p> Signup and view all the answers

Match the following small intestine structures with their functions:

<p>Villi = Increase surface area for absorption Microvilli = Further increase absorption surface area Crypts of Lieberkühn = Secrete intestinal juices Peyer's patches = Immune monitoring</p> Signup and view all the answers

What role does bile play in digestion?

<p>Emulsifies fats</p> Signup and view all the answers

Absorption in the small intestine occurs only in the duodenum.

<p>False (B)</p> Signup and view all the answers

Which vitamin is essential for good vision and found in green peppers and carrots?

<p>Retinole (VA) (C)</p> Signup and view all the answers

Water makes up about 40%-50% of the human body.

<p>False (B)</p> Signup and view all the answers

What deficiency disease is caused by a lack of Vitamin C?

<p>Scurvy</p> Signup and view all the answers

__________ is a disease associated with a deficiency of Vitamin B1.

<p>Beriberi</p> Signup and view all the answers

What is one of the main functions of water in the human body?

<p>It regulates body temperature. (D)</p> Signup and view all the answers

Match the following vitamins with their deficiency diseases:

<p>Retinole (VA) = Poor sight, poor growth Niacin (VB3) = Pellagra Vitamin D (VD) = Rickets Riboflavin (VB2) = Slow growth, eye disease</p> Signup and view all the answers

An enzyme can catalyze multiple reactions.

<p>False (B)</p> Signup and view all the answers

How does the body achieve the digestion of food?

<p>Through physical (mechanical) and chemical processes.</p> Signup and view all the answers

What is the primary function of bile?

<p>To emulsify fats (A)</p> Signup and view all the answers

The small intestine is approximately 10-12 meters long.

<p>False (B)</p> Signup and view all the answers

What enzyme is responsible for breaking down lactose in the small intestine?

<p>lactase</p> Signup and view all the answers

The finger-like projections in the small intestine that absorb nutrients are called ______.

<p>villi</p> Signup and view all the answers

Which part of the small intestine is primarily responsible for the completion of digestion?

<p>Ileum (B)</p> Signup and view all the answers

Match the following enzymes with their functions:

<p>Erepsin = Peptides to amino acids Maltase = Maltose to glucose Lactase = Lactose to glucose and galactose Sucrase = Sucrose to glucose and fructose</p> Signup and view all the answers

Absorption of fatty acids occurs directly into the blood supply from the small intestine.

<p>False (B)</p> Signup and view all the answers

What is the role of the pancreas in digestion?

<p>Secretes pancreatic juice</p> Signup and view all the answers

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