Question 1

Which absorptive process in the small intestine requires a carrier and energy to transport nutrients into absorptive cells?

Accepted Answer

A)   Active absorption
B)   Passive diffusion
C)   Facilitated diffusion
D)   PhagocytosisE) B) and C)
F) A) and B) A

Question 2

The stomach empties into the small intestine through the

Accepted Answer

A)   pyloric sphincter.
B)   lower esophageal sphincter.
C)   sphincter of Oddi.
D)   ileocecal sphincter.E) A) and C)
F) A) and B) A

Question 3

When a nutrient moves, with the help of a carrier, from an area of higher nutrient concentration into an absorptive cell where the concentration of that nutrient is lower, this is called

Accepted Answer

A)   active absorption.
B)   passive diffusion.
C)   facilitated diffusion.
D)   phagocytosis.E) B) and C)
F) B) and D)

Question 4

Partially digested food that enters the small intestine from the stomach is called

Accepted Answer

A)   a bolus.
B)   feces.
C)   chyme.
D)   bile.E) All of the above
F) None of the above

Question 5

The ________ system is made up of several glands that act in the regulation of metabolism, reproduction, water balance, and many other functions.

Accepted Answer

A)   urinary
B)   cardiovascular
C)   endocrine
D)   lymphaticE) C) and D)
F) B) and C)

Question 6

Which of the following is true about digestive enzymes?

Accepted Answer

A)   An enzyme can only be used one time.
B)   Most enzymes are produced by the liver.
C)   Enzymes that work in the acidic environment of the stomach cannot work in the basic or alkaline environment of the small intestine and vice versa.
D)   Enzymes typically work independently of vitamins or minerals.E) A) and B)
F) B) and C)

Question 7

The organelles that are known as the power plants or the powerhouses of the cell are the

Accepted Answer

A)   mitochondria.
B)   lysosomes.
C)   ribosomes.
D)   nuclei.E) A) and B)
F) A) and C)

Question 8

The villi of the small intestine

Accepted Answer

A)   provide an enormous surface area that facilitates absorption.
B)   store fat-soluble vitamins.
C)   continuously push food through the small intestine to the colon.
D)   inactivate enzymes consumed with food.E) A) and B)
F) A) and D)

Question 9

Match the following with the descriptions below.
-Villi

Accepted Answer

A)  A mixture of stomach secretions and partially digested food
B)  Fingerlike projections in the small intestine that participate in digestion and absorption of nutrients
C)  A compound that speeds the rate of chemical processes but is not altered by the process
D)  A muscular valve that controls the flow of food matter into the stomach
E)  A substance released into the small intestine to aid fat absorptionF) D) and E)
G) A) and E)

Question 10

Which of the following is true regarding bile?

Accepted Answer

A)   It is an enzyme
B)   It stimulates the release of pancreatic juices
C)   It is produced by the liver
D)   It is a hormoneE) C) and D)
F) A) and D)

Question 11

The study of the ways nutrients and food influence gene expression is called

Accepted Answer

A)   epidemiology.
B)   molecular biology.
C)   nutrigenomics.
D)   nutrigenetics.E) B) and C)
F) B) and D) C

Question 12

Which pH best describes the environment of the stomach when stimulated?

Accepted Answer

A)   Neutral
B)   Acidic
C)   BasicD) A) and C)
E) None of the above

Question 13

Excessive acid production in the stomach or upper small intestine could result in

Accepted Answer

A)   poor iron, calcium, and folate absorption.
B)   small intestinal bacterial overgrowth.
C)   formation of an ulcer.
D)   decreased fiber digestion and absorption.E) A) and D)
F) A) and C)

Question 14

Match the following with the descriptions below.
-Active absorption

Accepted Answer

A)  Movement of nutrients against a concentration gradient; requires a carrier and energy
B)  Movement of nutrients down a concentration gradient; requires a carrier, but does not require energy
C)  Uptake of nutrients in which solid particles are engulfed by the absorptive cell; requires energy
D)  Uptake of nutrients in which liquids are engulfed by the absorptive cell; requires energy
E)  Movement of nutrients down a concentration gradient; requires no carrier and no energyF) B) and C)
G) D) and E)

Question 15

What structure prevents food from entering the trachea when you swallow?

Accepted Answer

A)   Epiglottis
B)   Tongue
C)   Tonsils
D)   EsophagusE) A) and D)
F) A) and C)

Question 16

Match the following with the descriptions below.
-Facilitated diffusion

Accepted Answer

A)  Movement of nutrients against a concentration gradient; requires a carrier and energy
B)  Movement of nutrients down a concentration gradient; requires a carrier, but does not require energy
C)  Uptake of nutrients in which solid particles are engulfed by the absorptive cell; requires energy
D)  Uptake of nutrients in which liquids are engulfed by the absorptive cell; requires energy
E)  Movement of nutrients down a concentration gradient; requires no carrier and no energyF) A) and D)
G) D) and E)

Question 17

Match the following with the descriptions below.
-Passive absorption

Accepted Answer

A)  Movement of nutrients against a concentration gradient; requires a carrier and energy
B)  Movement of nutrients down a concentration gradient; requires a carrier, but does not require energy
C)  Uptake of nutrients in which solid particles are engulfed by the absorptive cell; requires energy
D)  Uptake of nutrients in which liquids are engulfed by the absorptive cell; requires energy
E)  Movement of nutrients down a concentration gradient; requires no carrier and no energyF) A) and E)
G) C) and D)

Question 18

Where does digestion begin?

Accepted Answer

A)   Mouth
B)   Stomach
C)   Esophagus
D)   Small intestineE) C) and D)
F) B) and D)

Question 19

Match the following with the descriptions below.
-Pinocytosis

Accepted Answer

A)  Movement of nutrients against a concentration gradient; requires a carrier and energy
B)  Movement of nutrients down a concentration gradient; requires a carrier, but does not require energy
C)  Uptake of nutrients in which solid particles are engulfed by the absorptive cell; requires energy
D)  Uptake of nutrients in which liquids are engulfed by the absorptive cell; requires energy
E)  Movement of nutrients down a concentration gradient; requires no carrier and no energyF) A) and D)
G) C) and E)

Question 20

A chemical that allows for communication between one cell and another is a

Accepted Answer

A)   neurotransmitter.
B)   neuron.
C)   nephron.
D)   synapse.E) A) and D)
F) B) and C)

Exam 3: The Human Body: a Nutrition Perspective

Which absorptive process in the small intestine requires a carrier and energy to transport nutrients into absorptive cells?

Correct AnswerverifiedA

The stomach empties into the small intestine through the

Correct AnswerverifiedA

When a nutrient moves, with the help of a carrier, from an area of higher nutrient concentration into an absorptive cell where the concentration of that nutrient is lower, this is called

Correct AnswerverifiedShow Answer

Partially digested food that enters the small intestine from the stomach is called

Correct AnswerverifiedShow Answer

The ________ system is made up of several glands that act in the regulation of metabolism, reproduction, water balance, and many other functions.

Correct AnswerverifiedShow Answer

Which of the following is true about digestive enzymes?

Correct AnswerverifiedShow Answer

The organelles that are known as the power plants or the powerhouses of the cell are the

Correct AnswerverifiedShow Answer

The villi of the small intestine

Correct AnswerverifiedShow Answer

Match the following with the descriptions below. -Villi

Correct AnswerverifiedShow Answer

Which of the following is true regarding bile?

Correct AnswerverifiedShow Answer

The study of the ways nutrients and food influence gene expression is called

Correct AnswerverifiedC

Which pH best describes the environment of the stomach when stimulated?

Correct AnswerverifiedShow Answer

Excessive acid production in the stomach or upper small intestine could result in

Correct AnswerverifiedShow Answer

Match the following with the descriptions below. -Active absorption

Correct AnswerverifiedShow Answer

What structure prevents food from entering the trachea when you swallow?

Correct AnswerverifiedShow Answer

Match the following with the descriptions below. -Facilitated diffusion

Correct AnswerverifiedShow Answer

Match the following with the descriptions below. -Passive absorption

Correct AnswerverifiedShow Answer

Where does digestion begin?

Correct AnswerverifiedShow Answer

Match the following with the descriptions below. -Pinocytosis

Correct AnswerverifiedShow Answer

A chemical that allows for communication between one cell and another is a

Correct AnswerverifiedShow Answer

Correct Answer
verified
A

Correct Answer
verified
A

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified