Question 1

A reduced ability of the blood to carry oxygen is

Accepted Answer

A)  anemia. 
B)  edema. 
C)  asthma. 
D)  emphysema. 
A)  anemia. 
B)  edema. 
C)  asthma. 
D)  emphysema.

Question 2

Each nephron

Accepted Answer

A)  is associated with a lacteal. 
B)  is surrounded by capillaries. 
C)  has blood running through it. 
D)  secretes glucose. 
A)  is associated with a lacteal. 
B)  is surrounded by capillaries. 
C)  has blood running through it. 
D)  secretes glucose.

Question 3

The stomach produces enzymes that begin the break down of ____________.

Accepted Answer

A)  carbohydrates 
B)  proteins 
C)  fats 
D)  sugars 
A)  carbohydrates 
B)  proteins 
C)  fats 
D)  sugars

Question 4

Enzymatic digestion of proteins starts in the

Accepted Answer

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

Question 5

The job of this organ is to cleanse the blood of pathogens and worn-out or damaged RBCs.

Accepted Answer

A)  tonsils 
B)  nodes 
C)  liver 
D)  alveolus 
A)  tonsils 
B)  nodes 
C)  liver 
D)  alveolus

Question 6

Most of the carbon dioxide in the blood is

Accepted Answer

A)  dissolved in the plasma. 
B)  attached to hemoglobin molecules. 
C)  present as tiny bubbles in the blood. 
D)  carried as bicarbonate ions. 
A)  dissolved in the plasma. 
B)  attached to hemoglobin molecules. 
C)  present as tiny bubbles in the blood. 
D)  carried as bicarbonate ions.

Question 7

The functional unit of the kidney is called

Accepted Answer

A)  Bowman's capsule. 
B)  a collecting duct. 
C)  a nephron. 
D)  a loop of Henle. 
A)  Bowman's capsule. 
B)  a collecting duct. 
C)  a nephron. 
D)  a loop of Henle.

Question 8

Blood is carried from the heart to the lungs by the

Accepted Answer

A)  aorta. 
B)  pulmonary artery. 
C)  pulmonary veins. 
D)  vena cava. 
A)  aorta. 
B)  pulmonary artery. 
C)  pulmonary veins. 
D)  vena cava.

Question 9

Breathing is most directly controlled by (the)

Accepted Answer

A)  heart. 
B)  lungs. 
C)  diaphragm. 
D)  conscious thought. 
A)  heart. 
B)  lungs. 
C)  diaphragm. 
D)  conscious thought.

Question 10

The primary function of the loop of Henle is

Accepted Answer

A)  removal of glucose. 
B)  removal of water from the nephron. 
C)  secretion of hydrogen ions. 
D)  to produce liquid for the nephron. 
A)  removal of glucose. 
B)  removal of water from the nephron. 
C)  secretion of hydrogen ions. 
D)  to produce liquid for the nephron.

Question 11

Which of the following sets of organs are involved in producing enzymes that are involved in breaking down proteins to amino acids?

Accepted Answer

A)  Salivary glands, stomach, pancreas, liver 
B)  Liver, stomach, pancreas, intestinal lining 
C)  Pancreas, intestinal lining, salivary glands, stomach 
D)  Stomach, pancreas, intestinal lining 
A)  Salivary glands, stomach, pancreas, liver 
B)  Liver, stomach, pancreas, intestinal lining 
C)  Pancreas, intestinal lining, salivary glands, stomach 
D)  Stomach, pancreas, intestinal lining

Question 12

Asthma is caused by

Accepted Answer

A)  contraction of the bronchioles. 
B)  reduced number of alveoli. 
C)  lack of hemoglobin in the blood. 
D)  reduced flow of blood to the lungs. 
A)  contraction of the bronchioles. 
B)  reduced number of alveoli. 
C)  lack of hemoglobin in the blood. 
D)  reduced flow of blood to the lungs.

Question 13

A condition that is the result of tissue fluid buildup causing the tissue to swell is

Accepted Answer

A)  cancer. 
B)  edema. 
C)  tonsilitis. 
D)  cryptorchidism. 
A)  cancer. 
B)  edema. 
C)  tonsilitis. 
D)  cryptorchidism.

Question 14

Where does the exchange of materials between cells and the blood occur?

Accepted Answer

A)  arteries. 
B)  veins. 
C)  capillaries. 
D)  All of these exchange materials. 
A)  arteries. 
B)  veins. 
C)  capillaries. 
D)  All of these exchange materials.

Question 15

The presence of lacteals and capillaries in villi is important because

Accepted Answer

A)  the villi need nourishment. 
B)  they are involved in transporting nutrients from the intestine. 
C)  they are involved in transporting enzymes to the intestine. 
D)  they increase the surface area of the lining of the intestine. 
A)  the villi need nourishment. 
B)  they are involved in transporting nutrients from the intestine. 
C)  they are involved in transporting enzymes to the intestine. 
D)  they increase the surface area of the lining of the intestine.

Question 16

The semilunar valves are located in the

Accepted Answer

A)  left atrium. 
B)  major veins that enter the heart. 
C)  pulmonary artery and aorta. 
D)  right atrium. 
A)  left atrium. 
B)  major veins that enter the heart. 
C)  pulmonary artery and aorta. 
D)  right atrium.

Question 17

Valves in veins assure that

Accepted Answer

A)  lymph will be formed. 
B)  blood in veins must flow back to the heart. 
C)  the flow of blood through veins is regulated. 
D)  veins will not receive blood that is under too great a pressure. 
A)  lymph will be formed. 
B)  blood in veins must flow back to the heart. 
C)  the flow of blood through veins is regulated. 
D)  veins will not receive blood that is under too great a pressure.

Question 18

Breathing rate increases during exercise because

Accepted Answer

A)  the heart is beating more rapidly. 
B)  there is less oxygen in the blood. 
C)  there is more carbon dioxide in the blood. 
D)  there is an increase in blood pH. 
A)  the heart is beating more rapidly. 
B)  there is less oxygen in the blood. 
C)  there is more carbon dioxide in the blood. 
D)  there is an increase in blood pH.

Question 19

Arteries differ from veins in that

Accepted Answer

A)  veins carry blood to the internal organs of the body. 
B)  arteries have valves that veins do not have. 
C)  veins have thinner walls than arteries. 
D)  the pressure in veins is greater than that in arteries. 
A)  veins carry blood to the internal organs of the body. 
B)  arteries have valves that veins do not have. 
C)  veins have thinner walls than arteries. 
D)  the pressure in veins is greater than that in arteries.

Question 20

What do all of the following have in common; alveolus, villus, nephron?

Accepted Answer

A)  They are all involved in producing enzymes. 
B)  They are all involved in exchanging materials with blood in capillaries. 
C)  They are involved in getting things into cells. 
D)  They have nothing in common. 
A)  They are all involved in producing enzymes. 
B)  They are all involved in exchanging materials with blood in capillaries. 
C)  They are involved in getting things into cells. 
D)  They have nothing in common.

Exam 24: Materials Exchange in the Body

A reduced ability of the blood to carry oxygen is

Each nephron

The stomach produces enzymes that begin the break down of ____________.

Enzymatic digestion of proteins starts in the

The job of this organ is to cleanse the blood of pathogens and worn-out or damaged RBCs.

Most of the carbon dioxide in the blood is

The functional unit of the kidney is called

Blood is carried from the heart to the lungs by the

Breathing is most directly controlled by (the)

The primary function of the loop of Henle is

Which of the following sets of organs are involved in producing enzymes that are involved in breaking down proteins to amino acids?

Asthma is caused by

A condition that is the result of tissue fluid buildup causing the tissue to swell is

Where does the exchange of materials between cells and the blood occur?

The presence of lacteals and capillaries in villi is important because

The semilunar valves are located in the

Valves in veins assure that

Breathing rate increases during exercise because

Arteries differ from veins in that

What do all of the following have in common; alveolus, villus, nephron?

What Is Biology

The Basics of Life: Chemistry

Organic Molecules: The Molecules of Life

Cell Structure and Function

Enzymes, Coenzymes, and Energy

Biochemical Pathways: Cellular Respiration

Biochemical Pathways: Photosynthesis

DNA and RNA: The Molecular Basis of Heredity

Cell Division: Proliferation and Reproduction

Patterns of Inheritance

Applications of Biotechnology

Diversity Within Species and Population Genetics

Evolution and Natural Selection

The Formation of Species and Evolutionary Change

Ecosystem Dynamics: The Flow of Energy and Matter

Community Interactions

Population Ecology

Evolutionary and Ecological Aspects of Behavior

The Origin of Life and the Evolution of Cells

The Classification and Evolution of Organisms

The Nature of Microorganisms

The Plant Kingdom

The Animal Kingdom

Nutrition: Food and Diet

The Bodys Control Mechanisms and Immunity

Human Reproduction, Sex, and Sexuality

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