Question 1

Which of the following is not true about the large intestine?

Accepted Answer

A) only 4% of food absorption takes place in it 
B) secretes water to make the feces semi-solid 
C) contains three relatively straight segments with no villi 
D) sodium,vitamin K,and other bacterial metabolic products absorbed across the wall 
E) compacts and stores the undigested materials till excretion as feces 
A) only 4% of food absorption takes place in it 
B) secretes water to make the feces semi-solid 
C) contains three relatively straight segments with no villi 
D) sodium,vitamin K,and other bacterial metabolic products absorbed across the wall 
E) compacts and stores the undigested materials till excretion as feces B

Question 2

Why is the stomach acidic?

Accepted Answer

A) to kill bacteria 
B) to digest proteins 
C) to hold water 
D) to breakdown starch 
E) to emulsify fats 
A) to kill bacteria 
B) to digest proteins 
C) to hold water 
D) to breakdown starch 
E) to emulsify fats B

Question 3

In the diagram,which of the following processes causes the greatest insulin release?

Accepted Answer

A) II 
B) III 
C) I 
D) both I and II equally 
E) both II and III equally 
A) II 
B) III 
C) I 
D) both I and II equally 
E) both II and III equally A

Question 4

The rate at which an animal consumes energy at rest is called ________.

Accepted Answer

A) the basal metabolic rate 
B) gluconeogenesis 
C) glycogenolysis 
D) rumination 
A) the basal metabolic rate 
B) gluconeogenesis 
C) glycogenolysis 
D) rumination

Question 5

Saliva contains the hydrolytic enzyme,salivary amylase,which initiates the breakdown of the polysaccharide _________ into the disaccharide,maltose.

Accepted Answer

A) cellulose 
B) sucrose 
C) glucose 
D) starch 
E) fructose 
A) cellulose 
B) sucrose 
C) glucose 
D) starch 
E) fructose

Question 6

Most digestion occurs in the first 25 centimeters of the 6-meter length of the small intestine called the

Accepted Answer

A) duodenum. 
B) reticulum. 
C) cecum. 
D) omasum. 
E) abomasum. 
A) duodenum. 
B) reticulum. 
C) cecum. 
D) omasum. 
E) abomasum.

Question 7

Why doesn't the stomach acid just digest right through the wall of the stomach?

Accepted Answer

A) It does,we just rebuild the layers faster than they can be digested. 
B) Neutralizers are imbedded in the stomach lining. 
C) The ph of the stomach acid is not low enough to be able to digest the lining. 
D) Food prevents the acid from digesting the wall of the stomach. 
E) The lining of the stomach is protected by mucus. 
A) It does,we just rebuild the layers faster than they can be digested. 
B) Neutralizers are imbedded in the stomach lining. 
C) The ph of the stomach acid is not low enough to be able to digest the lining. 
D) Food prevents the acid from digesting the wall of the stomach. 
E) The lining of the stomach is protected by mucus.

Question 8

Which of the following is not a secretion by the pancreas?

Accepted Answer

A) trypsin 
B) chymotrypsin 
C) duotrypsin 
D) pancreatic amylase 
E) lipase 
A) trypsin 
B) chymotrypsin 
C) duotrypsin 
D) pancreatic amylase 
E) lipase

Question 9

Choose the letter of the best match of the vitamins with the following deficiency symptoms.
-Vitamin B12

Accepted Answer

A) weakening of heart 
B) inflammation and breakdown of skin 
C) rickets 
D) severe bleeding 
E) scurvy
F)night blindness
G)pernicious anemia 
A) weakening of heart 
B) inflammation and breakdown of skin 
C) rickets 
D) severe bleeding 
E) scurvy
F)night blindness
G)pernicious anemia

Question 10

Since the hepatic portal vein empties into the liver,it is able to control the amounts of

Accepted Answer

A) alcohol and drugs. 
B) toxins,pesticides,and carcinogens. 
C) glucose. 
D) glucose,alcohol,and drugs. 
E) glucose,alcohol,drugs,toxins,pesticides,and carcinogens. 
A) alcohol and drugs. 
B) toxins,pesticides,and carcinogens. 
C) glucose. 
D) glucose,alcohol,and drugs. 
E) glucose,alcohol,drugs,toxins,pesticides,and carcinogens.

Question 11

A friend describes to you a choking event in her life.She says that "the food went down the wrong pipe." She meant that

Accepted Answer

A) some food went down her esophagus. 
B) some food was stuck in her pharynx. 
C) some food went down her trachea. 
D) some food lodged in one of her salivary gland ducts. 
E) some food was stuck in her esophagus. 
A) some food went down her esophagus. 
B) some food was stuck in her pharynx. 
C) some food went down her trachea. 
D) some food lodged in one of her salivary gland ducts. 
E) some food was stuck in her esophagus.

Question 12

Which digestive hormone stimulates the secretion of bicarbonate by the pancreas?

Accepted Answer

A) gastrin 
B) cholycystokinin 
C) gastric inhibitory peptide 
D) secretin 
A) gastrin 
B) cholycystokinin 
C) gastric inhibitory peptide 
D) secretin

Question 13

The strong hydrochloric acid present in the gastric juice denatures proteins and activates ________,a protein digesting enzyme.

Accepted Answer

A) pepsin 
B) trypsin 
C) chymotrypsin 
D) lipase 
E) amylase 
A) pepsin 
B) trypsin 
C) chymotrypsin 
D) lipase 
E) amylase

Question 14

The stomach produces all of the following except

Accepted Answer

A) HCl. 
B) pepsinogen. 
C) pepsin. 
D) aciD. 
E) bicarbonatE. 
A) HCl. 
B) pepsinogen. 
C) pepsin. 
D) aciD. 
E) bicarbonatE.

Question 15

The products of fat digestion in the small intestine are reassembled into triglycerides by the intestinal epithelium,before combining them with proteins to form ____________.

Accepted Answer

A) chylomicrons 
B) chyme 
C) vesicles 
D) bile 
A) chylomicrons 
B) chyme 
C) vesicles 
D) bile

Question 16

Bicarbonate that neutralizes stomach acid is produced by the

Accepted Answer

A) duodenum. 
B) small intestine. 
C) pancreas. 
D) large intestine. 
E) liver. 
A) duodenum. 
B) small intestine. 
C) pancreas. 
D) large intestine. 
E) liver.

Question 17

Because of the hepatic portal vein,the _____ is the first organ to receive most of the products of digestion.

Accepted Answer

A) liver 
B) kidney 
C) pancreas 
D) gall bladder 
A) liver 
B) kidney 
C) pancreas 
D) gall bladder

Question 18

Choose the letter of the best match of the vitamins with the following deficiency symptoms.
-Vitamin K

Accepted Answer

A) weakening of heart 
B) inflammation and breakdown of skin 
C) rickets 
D) severe bleeding 
E) scurvy
F)night blindness
G)pernicious anemia 
A) weakening of heart 
B) inflammation and breakdown of skin 
C) rickets 
D) severe bleeding 
E) scurvy
F)night blindness
G)pernicious anemia

Question 19

Which of these does not aid in digestion?

Accepted Answer

A) accessory organs 
B) neural stimulation 
C) palpitations 
D) endocrine secretions 
A) accessory organs 
B) neural stimulation 
C) palpitations 
D) endocrine secretions

Question 20

Choose the letter of the best match of the vitamins with the following deficiency symptoms.
-Vitamin B1

Accepted Answer

A) weakening of heart 
B) inflammation and breakdown of skin 
C) rickets 
D) severe bleeding 
E) scurvy
F)night blindness
G)pernicious anemia 
A) weakening of heart 
B) inflammation and breakdown of skin 
C) rickets 
D) severe bleeding 
E) scurvy
F)night blindness
G)pernicious anemia

Exam 48: The Digestive System

Which of the following is not true about the large intestine?

Why is the stomach acidic?

In the diagram,which of the following processes causes the greatest insulin release?

The rate at which an animal consumes energy at rest is called ________.

Saliva contains the hydrolytic enzyme,salivary amylase,which initiates the breakdown of the polysaccharide _________ into the disaccharide,maltose.

Most digestion occurs in the first 25 centimeters of the 6-meter length of the small intestine called the

Why doesn't the stomach acid just digest right through the wall of the stomach?

Which of the following is not a secretion by the pancreas?

Choose the letter of the best match of the vitamins with the following deficiency symptoms. -Vitamin B12

Since the hepatic portal vein empties into the liver,it is able to control the amounts of

A friend describes to you a choking event in her life.She says that "the food went down the wrong pipe." She meant that

Which digestive hormone stimulates the secretion of bicarbonate by the pancreas?

The strong hydrochloric acid present in the gastric juice denatures proteins and activates ________,a protein digesting enzyme.

The stomach produces all of the following except

The products of fat digestion in the small intestine are reassembled into triglycerides by the intestinal epithelium,before combining them with proteins to form ____________.

Bicarbonate that neutralizes stomach acid is produced by the

Because of the hepatic portal vein,the _____ is the first organ to receive most of the products of digestion.

Choose the letter of the best match of the vitamins with the following deficiency symptoms. -Vitamin K

Which of these does not aid in digestion?

Choose the letter of the best match of the vitamins with the following deficiency symptoms. -Vitamin B1

The Science of Biology

The Nature of Molecules

The Chemical Building Blocks of Life

Cell Structure

Membranes

Energy and Metabolism

How Cells Harvest Energy

Photosynthesis

Cell Communication

How Cells Divide

Sexual Reproduction and Meiosis

Patterns of Inheritance

Chromosomes Mapping and the Meiosis - Inheritance Connection

Dna: the Genetic Material

Genes and How They Work

Control of Gene Expression

Biotechnology

Genomics

Cellular Mechanisms of Development

Genes Within Populations

The Evidence for Evolution

The Origin of Species

Systematics and the Phylogenetic Revolution

Genome Evolution

Evolution of Development

The Tree of Life

Viruses

Prokaryotes

Protists

Overview of Green Plants

Fungi

Overview of Animal Diversity

Noncoelomate Invertebrates

Coelomate Invertebrates

Vertebrates

Plant Form

Vegetative Plant Development

Transport in Plants

Plant Nutrition and Soils

Plant Defense Responses

Sensory Systems in Plants

Plant Reproduction

The Animal Body and Principles of Regulation

The Nervous System

Sensory Systems

The Endocrine System

The Musculoskeletal System

The Respiratory System

The Circulatory System

Osmotic Regulation and the Urinary System

The Immune System

The Reproductive System

Animal Development

Behavioral Biology

Population Ecology

Community of Ecology

Dynamics of Ecosystems

The Biosphere

Conservation Biology

Choose the letter of the best match of the vitamins with the following deficiency symptoms. -Vitamin B₁₂

Choose the letter of the best match of the vitamins with the following deficiency symptoms. -Vitamin B₁