Digestive System 1.4

Question 1

In which of the following organs does digestion begin ?

A : mouth
B : stomach
C : small intestine
D: pancreas

Answer 1

Mouth

Question 2

In which of the following organs does the breakdown of proteins begin ?

A: Mouth
B: Stomach
C: small intestine
D: pancreas

Answer 2

Stomach

Question 3

Which of the following structures absorbs nutrients in the small intestine ?

A: mucus
B: microvilli
C: enzymes
D: hormones

Answer 3

Microvilli

Question 4

Which of the following statements best describes peristalsis?

A: the partly digested food moving from the stomach to the small intestine

B: the mechanical breakdown of good entering the stomach

C: muscle contractions that move food through the digestive tract

D: chemical digestion of food with the help of enzymes

Answer 4

Muscle contractions that move food through the digestive tract

Question 5

The purpose of the pancreatic juice includes all but which of the following?

A: Neutralizes acidic chime
B:Breaks down fats
C: Breaks down starches
D: Emulsifies fats

Answer 5

D:Emulsifies fats

Question 6

Which of the following organs is incorrectly matched with its function?

A:Liver / produces lipase for fat breakdown

B:Gall bladder / secretes bile for fat emulsification
C: Pancreas / secretes amylase for starch digestion
D: Stomach / secretes pepsinogen for protein digestion

Answer 6

A:Liver / produces lipase for fat breakdown

Question 7

Which of the following organs has both endocrine and digestive functions?

A: Mouth
B: Colon
C: Pancreas
D: Gall bladder

Answer 7

C: Pancreas

Question 8

Inability of the pyloric sphincter to open would prevent which of the following?

A: Release of stomach enzymes
B: Production of chime
C: Defecation
D: Food entering the duodenum

Answer 8

D: Food entering the duodenum

Question 9

Protein digestion begins in the________
and ends in the________
Which of the following completes the
sentence above?

A: small intestine / large intestine
B: stomach / small intestine
C:mouth / stomach
D: mouth / small intestine

Answer 9

B: stomach / small intestine

Question 10

In which of the following organs does digestion begin?
A. Mouth
B. Stomach
C. Small intestine
D. Pancreas

Answer 10

A: Mouth

Question 11

In which of the following organs does the breakdown of proteins begin?
A. Mouth
B. Stomach
C. Small intestine
D. Pancreas

Answer 11

B: Stomach

Question 12

3. Which of the following structures absorbs nutrients in the small intestine?
   A. Mucus
   B. Microvilli
   C. Enzymes
   D. Hormones

Answer 12

B: Microvilli

Question 13

4. Which of the following statements best describes peri-stalsis?

A. The partly digested food moving from the stomach to the small intestine.

B. The mechanical breakdown of food entering the stomach.

(C. Muscle contractions that move food through the
digestive tract.

D. Chemical digestion of food with the help of enzymes.

Answer 13

(C. Muscle contractions that move food through the
digestive tract.