Question 1

An example of an animal with an incomplete gut is a

Accepted Answer

A) squid. 
B) earthworm. 
C) planarian. 
D) human. 
E) grasshopper. 
A) squid. 
B) earthworm. 
C) planarian. 
D) human. 
E) grasshopper.

Question 2

The tubular structure that moves food by peristalsis from the mouth to the stomach is the

Accepted Answer

A) epiglottis. 
B) trachea. 
C) tongue. 
D) esophagus. 
E) glottis. 
A) epiglottis. 
B) trachea. 
C) tongue. 
D) esophagus. 
E) glottis.

Question 3

Microvilli serve to

Accepted Answer

A) absorb nutrients. 
B) secrete bile. 
C) produce antibodies. 
D) synthesize vitamins. 
A) absorb nutrients. 
B) secrete bile. 
C) produce antibodies. 
D) synthesize vitamins.

Question 4

The structural features of the small intestine that enable the absorption of nutrients are the

Accepted Answer

A) microvilli 
B) appendix 
C) rugae 
D) capillary beds 
A) microvilli 
B) appendix 
C) rugae 
D) capillary beds

Question 5

The dentition of omnivores is specialized for ______ in their diets.

Accepted Answer

A) meat only 
B) plants only 
C) bacteria only 
D) both plants and meat 
A) meat only 
B) plants only 
C) bacteria only 
D) both plants and meat

Question 6

Identify the correct sequence of events for the digestion of starch? 
A.Salivary amylase is produced by the salivary glands
B.Starch digestion begins in the mouth
C.Starch digestion begins in the stomach
D.Starch is converted into maltose
E.Starch is converted into glycogen
F.Maltose is digested into glucose in the small intestine,
G.Glucose is absorbed in the small intestine
H.Glucose is absorbed in the large intestine.

Accepted Answer

A) a - b - d - f - g 
B) a - c - d - f - h. 
C) a - b - e - f - g 
D) b - c - a - g - h 
E) a - b - e - f - g . 
A) a - b - d - f - g 
B) a - c - d - f - h. 
C) a - b - e - f - g 
D) b - c - a - g - h 
E) a - b - e - f - g .

Question 7

A diet high in omega-3 fatty acids obtained from various types of fish is recommended to reduce the risk of cardiovascular disease.

Accepted Answer

A) True 
 B)False

Question 8

The digestive juices found in the stomach include

Accepted Answer

A) insulin and bile. 
B) pepsin and hydrochloric acid. 
C) sodium bicarbonate and hydrochloric acid. 
D) pancreatic and salivary amylase. 
E) trypsin and maltase. 
A) insulin and bile. 
B) pepsin and hydrochloric acid. 
C) sodium bicarbonate and hydrochloric acid. 
D) pancreatic and salivary amylase. 
E) trypsin and maltase.

Question 9

________ is contained in pancreatic juice to neutralize the acidity of chyme from the stomach.

Accepted Answer

A) Sodium bicarbonate 
B) Trypsin 
C) Pancreatic amylase 
D) Bile 
A) Sodium bicarbonate 
B) Trypsin 
C) Pancreatic amylase 
D) Bile

Question 10

Chyme is produced in the

Accepted Answer

A) small intestine. 
B) stomach. 
C) esophagus. 
D) large intestine. 
A) small intestine. 
B) stomach. 
C) esophagus. 
D) large intestine.

Question 11

If a person has a diet high in saturated fats,_____ molecules can carry cholesterol from the liver to cells and to the arterial walls,whereas _____ transports cholesterol from the cells to the liver,where it is converted to bile salts which can lead to an increased risk of cardiovascular disease.

Accepted Answer

A) LDL; HDL 
B) HDL; trans-fats 
C) LDL; insulin 
D) HDL; LDL 
A) LDL; HDL 
B) HDL; trans-fats 
C) LDL; insulin 
D) HDL; LDL

Question 12

Which animals would be classified as continuous feeders?

Accepted Answer

A) clams,baleen whales,and oysters 
B) clams,crickets,and dolphins 
C) worms,clams,and crayfish 
D) oysters,hummingbirds and planarian 
E) None of these groups are all continuous feeders. 
A) clams,baleen whales,and oysters 
B) clams,crickets,and dolphins 
C) worms,clams,and crayfish 
D) oysters,hummingbirds and planarian 
E) None of these groups are all continuous feeders.

Question 13

When the liver malfunctions and there is an abnormally large amount of bilirubin in the blood it can cause

Accepted Answer

A) cirrhosis of the liver. 
B) kidney stones. 
C) gallstones. 
D) the rolling stones. 
E) jaundice. 
A) cirrhosis of the liver. 
B) kidney stones. 
C) gallstones. 
D) the rolling stones. 
E) jaundice.

Question 14

In the first step of starch digestion,starch is converted to _______,which is then digested to ________ by the enzyme maltase.

Accepted Answer

A) glucose; maltose 
B) amino acids; proteins 
C) maltose; glucose 
D) fat; glycerol and 3 fatty acids 
A) glucose; maltose 
B) amino acids; proteins 
C) maltose; glucose 
D) fat; glycerol and 3 fatty acids

Question 15

Which mineral is especially important for women to incorporate into their diet if they are menstruating?

Accepted Answer

A) aluminum 
B) iron 
C) magnesium 
D) sodium 
A) aluminum 
B) iron 
C) magnesium 
D) sodium

Question 16

Which is NOT true of human salivary glands?

Accepted Answer

A) They produce an enzyme to begin the digestion of starch. 
B) They can become inflamed and cause tonsillitis. 
C) There are three pairs that open by ducts into the mouth. 
D) The production of saliva aids in the mechanical digestion process. 
A) They produce an enzyme to begin the digestion of starch. 
B) They can become inflamed and cause tonsillitis. 
C) There are three pairs that open by ducts into the mouth. 
D) The production of saliva aids in the mechanical digestion process.

Question 17

Protein digestion occurs in the

Accepted Answer

A) mouth,stomach,and small intestine. 
B) stomach and small intestine. 
C) stomach,esophagus,and small intestine. 
D) mouth and large intestine. 
E) small intestine,large intestine,and mouth. 
A) mouth,stomach,and small intestine. 
B) stomach and small intestine. 
C) stomach,esophagus,and small intestine. 
D) mouth and large intestine. 
E) small intestine,large intestine,and mouth.

Question 18

An unhealthy diet can lead to obesity in individuals which can result in cardiovascular disease and Type 2 diabetes.

Accepted Answer

A) True 
 B)False

Question 19

The liver functions in digestion by

Accepted Answer

A) converting hemoglobin to bilirubin and biliverdin. 
B) destroying old red blood cells. 
C) producing blood proteins. 
D) producing urea. 
E) producing bile. 
A) converting hemoglobin to bilirubin and biliverdin. 
B) destroying old red blood cells. 
C) producing blood proteins. 
D) producing urea. 
E) producing bile.

Question 20

Which features are found in organisms that have an incomplete digestive tract?

Accepted Answer

A) pharynx,digestive enzymes and diffusion of nutrients 
B) crop,digestive enzymes and diffusion of nutrients 
C) digestive enzymes,esophagus and diffusion of nutrients 
D) gizzard,salivary amylase and a pharynx 
A) pharynx,digestive enzymes and diffusion of nutrients 
B) crop,digestive enzymes and diffusion of nutrients 
C) digestive enzymes,esophagus and diffusion of nutrients 
D) gizzard,salivary amylase and a pharynx

Exam 34: Digestive Systems and Nutrition

An example of an animal with an incomplete gut is a

The tubular structure that moves food by peristalsis from the mouth to the stomach is the

Microvilli serve to

The structural features of the small intestine that enable the absorption of nutrients are the

The dentition of omnivores is specialized for ______ in their diets.

A diet high in omega-3 fatty acids obtained from various types of fish is recommended to reduce the risk of cardiovascular disease.

The digestive juices found in the stomach include

________ is contained in pancreatic juice to neutralize the acidity of chyme from the stomach.

Chyme is produced in the

If a person has a diet high in saturated fats,_____ molecules can carry cholesterol from the liver to cells and to the arterial walls,whereas _____ transports cholesterol from the cells to the liver,where it is converted to bile salts which can lead to an increased risk of cardiovascular disease.

Which animals would be classified as continuous feeders?

When the liver malfunctions and there is an abnormally large amount of bilirubin in the blood it can cause

In the first step of starch digestion,starch is converted to _______,which is then digested to ________ by the enzyme maltase.

Which mineral is especially important for women to incorporate into their diet if they are menstruating?

Which is NOT true of human salivary glands?

Protein digestion occurs in the

An unhealthy diet can lead to obesity in individuals which can result in cardiovascular disease and Type 2 diabetes.

The liver functions in digestion by

Which features are found in organisms that have an incomplete digestive tract?

A View of Life

Basic Chemistry

The Chemistry of Organic Molecules

Cell Structure and Function

Membrane Structure and Function

Metabolism: Energy and Enzymes

Photosynthesis

Cellular Respiration

The Cell Cycle and Cellular Reproduction

Meiosis and Sexual Reproduction

Mendelian Patterns of Inheritance

Molecular Biology of the Gene

Regulation of Gene Expression

Biotechnology and Genomics

Darwin and Evolution

How Populations Evolve

Speciation and Macroevolution

Origin and History of Life

Taxonomy,systematics,and Phylogeny

Viruses,bacteria,and Archaea

Protist Evolution and Diversity

Fungi Evolution and Diversity

Plant Evolution and Diversity

Flowering Plants: Structure and Organization

Flowering Plants: Nutrition and Transport

Flowering Plants: Control of Growth Responses

Flowering Plants: Reproduction

Invertebrate Evolution

Vertebrate Evolution

Human Evolution

Animal Organization and Homeostasis

Circulation and Cardiovascular Systems

The Lymphatic and Immune Systems

Respiratory Systems

Body Fluid Regulation and Excretory Systems

Neurons and Nervous Systems

Sense Organs

Locomotion and Support Systems

Hormones and Endocrine Systems

Reproductive Systems

Animal Development

Behavioral Ecology

Population Ecology

Community and Ecosystem Ecology

Major Ecosystems of the Biosphere

Conservation of Biodiversity

Filters

If a person has a diet high in saturated fats,_ molecules can carry cholesterol from the liver to cells and to the arterial walls,whereas _ transports cholesterol from the cells to the liver,where it is converted to bile salts which can lead to an increased risk of cardiovascular disease.

In the first step of starch digestion,starch is converted to _,which is then digested to __ by the enzyme maltase.