AnswersQ5 Biology 2014Lab: Blood Typing

The Digestive System Answers

4 verified answers
1
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Several instances of irregular digestion are listed in the table below.ConditionDescriptionSymptomsHeartburnInability of the muscles at the end of the esophagus to closeBurning sensation in throat Peptic ulcersAn open wound in the lining of the stomachSharp pain between chest and belly button, nauseaConstipationCondition where a person has infrequent and uncomfortable bowel movementsInfrequent bowel movements, nauseaLactose intoleranceInability to digest or break down the lactose in milk productsDiarrhea, gas, nausea, and bloatingMaria loves ice cream, but lately she has become aware that she feels nauseated after eating it. From which condition is Maria suffering?

A
peptic ulcer
B
heartburn
C
lactose intolerance
D
constipation
2
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Imagine that a person has a disorder of the pancreas that does not allow it to secrete digestive enzymes. Which enzyme would be missing to break down DNA and RNA?

A
amylases
B
proteases
C
lipases
D
nucleases
3

Maxwell is eating a plain chicken breast. Which enzyme is doing the most work?

A
amylase
B
proteases
C
lipases
D
lactase
4

The small intestine is the pathway for chyme. What else does it do?

A
mixes food with gastric juices using layers of muscle
B
absorbs water, salt, and minerals using villi
C
produces vitamins and feces
D
produces digestible-sized food for the stomach
5

The digestive system contains a variety of parts that perform specific functions within the body. The small and large intestines have some similarities and some differences. Which function is only performed in the small intestine?

A
water absorption
B
vitamin absorption
C
mineral absorption
D
production of chyme
6

What is the name of structure B in the image below?

Question illustration
A
pharynx
B
esophagus
C
trachea
D
stomach
7

Which of the following structures assist the major structures of the digestive system?

A
gall bladder, small intestine, and liver
B
salivary glands, mouth, and esophagus
C
pancreas, gall bladder, and salivary glands
D
pancreas, stomach, and large intestine
8

Which statement best describes peristalsis?

A
Peristalsis is a voluntary, two-way movement.
B
Peristalsis moves the food along the digestive tract.
C
Peristalsis breaks down carbohydrates in the mouth.
D
Peristalsis absorbs water and nutrients.
9

What is the name of structure E in the image below?

Question illustration
A
liver
B
stomach
C
small intestine
D
large intestine
10

Which best differentiates between chemical digestion and mechanical digestion?

A
Chemical digestion happens in the small intestine; mechanical digestion happens in the mouth.
B
Chemical digestion involves the breaking down of food with enzymes; mechanical digestion is breaking down food by chewing and tearing with teeth.
C
Chemical digestion is the breakdown of fats; mechanical digestion is the breakdown of proteins.
D
Chemical digestion is done only by the major structures of the digestive system; mechanical digestion is done by the accessory structures of the digestive system.

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