Question 1

In chemistry class,Karl combines hydrochloric acid with a base called sodium hydroxide.This chemical reaction results in the formation of a

Accepted Answer

A) buffer. 
B) tissue. 
C) salt. 
D) proton. 
A) buffer. 
B) tissue. 
C) salt. 
D) proton.

Question 2

A scientist discovers a new chemical in the leaves of a rare tropical plant.When trying to determine the role of the chemical,the scientist determined that it is not a structural part of the plant's cells or a pigment that contributes to the color of the plant's leaves.She was able to learn that the chemical sped up a particular chemical reaction involving the plant's metabolism.Based on this information,the new chemical is a (an)

Accepted Answer

A) solution. 
B) enzyme. 
C) sphincter. 
D) ileum. 
A) solution. 
B) enzyme. 
C) sphincter. 
D) ileum.

Question 3

Antonio has severe chronic gastroesophageal reflux disease (GERD).To reduce his likelihood of developing heartburn,his physician recommended that he

Accepted Answer

A) avoid overeating during meals. 
B) decrease his intake of fruits and vegetables. 
C) increase his intake of solid fats. 
D) take a multivitamin/multimineral pill before meals. 
A) avoid overeating during meals. 
B) decrease his intake of fruits and vegetables. 
C) increase his intake of solid fats. 
D) take a multivitamin/multimineral pill before meals.

Question 4

A(n)_____ is an atom or a group of atoms that has a positive or negative charge.

Accepted Answer

A) solvent 
B) diatom 
C) ion 
D) enzyme 
A) solvent 
B) diatom 
C) ion 
D) enzyme

Question 5

The _____ is an accessory organ of the digestive system.

Accepted Answer

A) jejunum 
B) epiglottis 
C) liver 
D) colon 
A) jejunum 
B) epiglottis 
C) liver 
D) colon

Question 6

Which of the following statements is false?

Accepted Answer

A) Mucus protects the lining of the stomach. 
B) Some absorption of alcohol occurs in the stomach. 
C) Peristalsis occurs when villi absorb fat. 
D) The sense of smell contributes to the sense of taste. 
A) Mucus protects the lining of the stomach. 
B) Some absorption of alcohol occurs in the stomach. 
C) Peristalsis occurs when villi absorb fat. 
D) The sense of smell contributes to the sense of taste.

Question 7

Which of the following conditions is characterized by inflammation and swelling of the intestinal tract?

Accepted Answer

A) Peptic ulcer 
B) Ulcerative colitis 
C) Cystic fibrosis 
D) Gastroesophageal reflux disease (GER
D)  
A) Peptic ulcer 
B) Ulcerative colitis 
C) Cystic fibrosis 
D) Gastroesophageal reflux disease (GER
D)

Question 8

Jillian drinks a couple of beers and smokes over a pack of cigarettes daily.Even though she's about 40 pounds overweight,she likes to wear tight-fitting clothes.Based on this information,Jillian has a high risk of developing

Accepted Answer

A) gastroesophageal reflux disease. 
B) rheumatoid arthritis 
C) cystic fibrosis. 
D) irritable bowel syndrome. 
A) gastroesophageal reflux disease. 
B) rheumatoid arthritis 
C) cystic fibrosis. 
D) irritable bowel syndrome.

Question 9

For several years,Corey has sufferered from intermittent abdominal pain along with bouts of diarrhea and constipation.According to Corey,his "bad guts" worsen whenever he is "stressed out" or eats certain foods,especially raw fruit and baked beans.His doctor has determined that his intestinal tract is not inflamed.Based on this information,Corey probably has

Accepted Answer

A) irritable bowel syndrome. 
B) Crohn's disease. 
C) gastroesophageal reflux disease (GER
D) . 
D) ulcerative colitis. 
A) irritable bowel syndrome. 
B) Crohn's disease. 
C) gastroesophageal reflux disease (GER
D) . 
D) ulcerative colitis.

Question 10

Which of the following organs is not an accessory organ of the digestive system?

Accepted Answer

A) Liver 
B) Brain 
C) Pancreas 
D) Gallbladder 
A) Liver 
B) Brain 
C) Pancreas 
D) Gallbladder

Question 11

Which of the following physiological changes is a result of catabolic chemical reactions?

Accepted Answer

A) Weight loss as a result of starvation. 
B) Muscle mass enlargement as a result of lifting weights. 
C) Weight gain as a result of overeating. 
D) Bone growth as a result of hormonal stimulation during puberty. 
A) Weight loss as a result of starvation. 
B) Muscle mass enlargement as a result of lifting weights. 
C) Weight gain as a result of overeating. 
D) Bone growth as a result of hormonal stimulation during puberty.

Question 12

When she sampled a spoonful of hot soup,Bekha burnt the tip of her tongue.During the 24 hours that followed the injury,Bekha had difficulty detecting foods that tasted

Accepted Answer

A) sour. 
B) cold. 
C) sweet. 
D) meaty. 
A) sour. 
B) cold. 
C) sweet. 
D) meaty.

Question 13

Which of the following compounds is not secreted by the human stomach?

Accepted Answer

A) Gastric juice 
B) Mucus 
C) Bile 
D) Hydrochloric acid 
A) Gastric juice 
B) Mucus 
C) Bile 
D) Hydrochloric acid

Question 14

A substance has a pH that is lower than the pH of pure water but higher than the pH of gastric juice.Based on this information,the substance is

Accepted Answer

A) lemon juice. 
B) egg white. 
C) household ammonia. 
D) baking soda. 
A) lemon juice. 
B) egg white. 
C) household ammonia. 
D) baking soda.

Question 15

Which of the following statements is true?

Accepted Answer

A) Matter is comprised of atoms. 
B) Electrons are positively charged particles. 
C) Protons are negatively charged particles. 
D) Acids are substances that gain hydrogen ions. 
A) Matter is comprised of atoms. 
B) Electrons are positively charged particles. 
C) Protons are negatively charged particles. 
D) Acids are substances that gain hydrogen ions.

Question 16

Which of the following substances has a pH that is higher than the pH of pure water?

Accepted Answer

A) Orange juice 
B) Blood 
C) Gastric juice 
D) Tomato juice 
A) Orange juice 
B) Blood 
C) Gastric juice 
D) Tomato juice

Question 17

To make hot tea,Sonya adds boiling water to a cup that has a teabag in it.She waits about 5 minutes for the tea to steep,then removes the teabag.Before drinking the tea,she adds a teaspoon of sugar to the hot beverage.When added to the tea,the sugar is a

Accepted Answer

A) buffer. 
B) diffusion. 
C) solute. 
D) solvent. 
A) buffer. 
B) diffusion. 
C) solute. 
D) solvent.

Question 18

The ____ is the smallest living functional unit in an organism.

Accepted Answer

A) mitochondrion 
B) cell 
C) organelle 
D) atom 
A) mitochondrion 
B) cell 
C) organelle 
D) atom

Question 19

Which of the following organs produces and secretes enzymes that are essential for proper digestion?

Accepted Answer

A) Pituitary 
B) Liver 
C) Pancreas 
D) Gallbladder 
A) Pituitary 
B) Liver 
C) Pancreas 
D) Gallbladder

Question 20

Dorothy is an 85-year-old woman who is having difficulty swallowing.Food seems to enter her stomach too slowly.Based on this information,Dorothy probably has a (an)

Accepted Answer

A) overgrowth of probiotics in her stomach. 
B) blockage caused by undigested fiber deposits in her jejunum. 
C) condition characterized by loss of peristaltic functioning. 
D) excessive amount of secretory activity within her digestive tract. 
A) overgrowth of probiotics in her stomach. 
B) blockage caused by undigested fiber deposits in her jejunum. 
C) condition characterized by loss of peristaltic functioning. 
D) excessive amount of secretory activity within her digestive tract.

In chemistry class,Karl combines hydrochloric acid with a base called sodium hydroxide.This chemical reaction results in the formation of a

Antonio has severe chronic gastroesophageal reflux disease (GERD).To reduce his likelihood of developing heartburn,his physician recommended that he

A(n)_____ is an atom or a group of atoms that has a positive or negative charge.

The _____ is an accessory organ of the digestive system.

Which of the following statements is false?

Which of the following conditions is characterized by inflammation and swelling of the intestinal tract?

Jillian drinks a couple of beers and smokes over a pack of cigarettes daily.Even though she's about 40 pounds overweight,she likes to wear tight-fitting clothes.Based on this information,Jillian has a high risk of developing

Which of the following organs is not an accessory organ of the digestive system?

Which of the following physiological changes is a result of catabolic chemical reactions?

When she sampled a spoonful of hot soup,Bekha burnt the tip of her tongue.During the 24 hours that followed the injury,Bekha had difficulty detecting foods that tasted

Which of the following compounds is not secreted by the human stomach?

A substance has a pH that is lower than the pH of pure water but higher than the pH of gastric juice.Based on this information,the substance is

Which of the following statements is true?

Which of the following substances has a pH that is higher than the pH of pure water?

To make hot tea,Sonya adds boiling water to a cup that has a teabag in it.She waits about 5 minutes for the tea to steep,then removes the teabag.Before drinking the tea,she adds a teaspoon of sugar to the hot beverage.When added to the tea,the sugar is a

The ____ is the smallest living functional unit in an organism.

Which of the following organs produces and secretes enzymes that are essential for proper digestion?

Dorothy is an 85-year-old woman who is having difficulty swallowing.Food seems to enter her stomach too slowly.Based on this information,Dorothy probably has a (an)

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Exam 4: Body Basics

In chemistry class,Karl combines hydrochloric acid with a base called sodium hydroxide.This chemical reaction results in the formation of a

Antonio has severe chronic gastroesophageal reflux disease (GERD).To reduce his likelihood of developing heartburn,his physician recommended that he

A(n)_____ is an atom or a group of atoms that has a positive or negative charge.

The _____ is an accessory organ of the digestive system.

Which of the following statements is false?

Which of the following conditions is characterized by inflammation and swelling of the intestinal tract?

Jillian drinks a couple of beers and smokes over a pack of cigarettes daily.Even though she's about 40 pounds overweight,she likes to wear tight-fitting clothes.Based on this information,Jillian has a high risk of developing

Which of the following organs is not an accessory organ of the digestive system?

Which of the following physiological changes is a result of catabolic chemical reactions?

When she sampled a spoonful of hot soup,Bekha burnt the tip of her tongue.During the 24 hours that followed the injury,Bekha had difficulty detecting foods that tasted

Which of the following compounds is not secreted by the human stomach?

A substance has a pH that is lower than the pH of pure water but higher than the pH of gastric juice.Based on this information,the substance is

Which of the following statements is true?

Which of the following substances has a pH that is higher than the pH of pure water?

To make hot tea,Sonya adds boiling water to a cup that has a teabag in it.She waits about 5 minutes for the tea to steep,then removes the teabag.Before drinking the tea,she adds a teaspoon of sugar to the hot beverage.When added to the tea,the sugar is a

The ____ is the smallest living functional unit in an organism.

Which of the following organs produces and secretes enzymes that are essential for proper digestion?

Dorothy is an 85-year-old woman who is having difficulty swallowing.Food seems to enter her stomach too slowly.Based on this information,Dorothy probably has a (an)

The Basics of Nutrition

Evaluating Nutrition Information

Planning Nutritious Diets

Carbohydrates

Fats and Other Lipids

Proteins

Vitamins

Water and Minerals

Energy Balance and Weight Control

Nutrition for Physically-Active Lifestyles

Food Safety Concerns

Nutrition for a Lifetime

Filters