UNIT D - ( Human Digestive System)

Question 1

The largest organ in your body?

Answer 1

The liver

Question 2

The function of the villi found inside the small intestine is to…..?

Answer 2

increase the surface area of the small intestine to increase the absorption rate of digested foods.

Question 3

A product formed from the digestion of butter is…?

Answer 3

glycerol

Question 4

The hormone enterogastrone is released in response to fats in the small intestine. Enterogastrone affects the stomach by __________ the production of gastric juices, and ____________ peristalsis.

Answer 4

decreasing, inhibiting

Question 5

What is the main purpose of the digestive system?

Answer 5

To break down food

Question 6

What type of proteins does saliva have that helps break down starchy foods?

Answer 6

Enzymes

Question 7

True or False: The stomach is responsible for killing a lot of the bad bacteria in the food we eat.

Answer 7

true

Question 8

The small intestine has fluids from which two organs to help continue to break down food?

Answer 8

Liver and Pancreas

Question 9

Where is the last stage of the digestive system?

Answer 9

Large Intestine

Question 10

Where is bile from the liver stored?

Answer 10

Gall Bladder

Question 11

What type of molecules does bile break down?

Answer 11

Fats

Question 12

What is pepsin?

Answer 12

An enzyme present in gastric juice that begins the hydrolysis of proteins

Question 13

What is the amylase?

Answer 13

enzyme in saliva that breaks the chemical bonds in starches

Question 14

What is the name of the stomach cell that secretes hydrochloric acid?

Answer 14

Parietal cell

Question 15

Which of the following macromolecules is digested in the small intestine?

Answer 15

Nucleic Acids

Question 16

The enzyme amylase is secreted into the…….?

Answer 16

the small intestine

Question 17

The major movement of food through the GI tract is called?

Answer 17

Peristalsis

Question 18

Which of the following enzymes digests protein?

Answer 18

Pepsin

Question 19

Which two secretions need to be present for lipid digestion?

Answer 19

bile and pancreatic juices

Question 20

What important nutrient is made in the large intestine?

Answer 20

Vitamin K and B vitamins, including biotin

Question 21

Parotid, submandibular, and sublingual all refer to:

Answer 21

salivary glands

Question 22

This muscular valve prevents gastric juices from flowing back out of the stomach and into the esophagus….

Answer 22

cardiac sphincter

Question 23

In which part of the digestive system is water absorbed?

Answer 23

Large intestine

Question 24

In which part of the digestive system is food directed from the mouth to the stomach?

Answer 24

esophagus

Question 25

secretes enzymes that digest macromolecules; absorbs hydrolyzed molecules into bloodstream. What am I?

Answer 25

The small intestine

Question 26

manufactures enzymes to digest macromolecules; secretes bicarbonate to neutralize stomach acid that enters
small intestine. What am I?

Answer 26

The pancreas

Question 27

In which part of the digestive system is bile stored until needed?

Answer 27

The gall bladder

Question 28

The chemical breakdown of starch begins in?

Answer 28

mouth

Question 29

How does Gastrin function in the digestion of proteins?

Answer 29

Gastrin signals the release of HCL which helps the break down polypeptides

Question 30

Stomach, mouth, tongue……

Answer 30

physically digest food

Question 31

Which structure in the digestive system produces a substance that results in a low Ph?

Answer 31

The stomach

Question 32

Which organ produces enzymes which aid in the digestion of fats?

Answer 32

pancreas

Question 33

Where is maltose produced as a result of protein digestion?

Answer 33

the mouth