Test - Digestive System

Question 1

2. What structure enables the small intestine to absorb large amounts of nutrients?

Answer 1

Villi

64 - Clf Digestion

Question 2

6. Which of the following organs is considered to be a part of the alimentary canal?

Answer 2

None of the pancreas, liver, or bladder are part of the alimentary canal
64. Clf digestion

Question 3

11. When chyme enters the small intestine,

Answer 3

64 - CLF digestion

Question 4

23. Where does digestion of carbohydrates begin?

Answer 4

the mouth

64 - Clf digestion

Question 5

24. what substance must be present in the stomach for pepsin to work best?

Answer 5

hydrochloric acid

63 - BP digestion

Question 6

25. Where does the alimentary canal end?

Answer 6

the large intestine

63 - BP Notes

Question 7

27. Why do we need to break apart the food we eat?

Answer 7

so our body’s can use the nutrients from the food

63 - BP Notes

Question 8

29. What substance coats and protects the inside of the stomach?

Answer 8

mucus

63. BP Notes

Question 9

34. Nutrient molecules pass through the small intestine into the bloodstream through tiny structures called _________.

Answer 9

Villi

64 - CLF digestion

Question 10

51. Using diagram A, name te structures the line or are found on the inside of organ C and describe their function.

Answer 10

The structures are Villi. Nutrient molecules pass into the cells on the surface of a villus and from there into blood vessels. The Villi provide a large area of absorption.
Answer sheet

Question 11

52. Using diagram A, what specifically is the name of the area of organ C shown? In general, could organ C perform its function without organ B?

Answer 11

the duodenum of te small intestine. B is the pancreas which produces enzymes that aid in chemical digestion. Without these enzymes, the chemical digestion couldn’t happen.
Answer sheet

Question 12

Using diagram A, give the letter and mane of the organ through which food is absorbed.

Answer 12

C - small intestine

64. Clf digestion