Question 1

Insects with _______ metabolic rates rely on their _______ for respiratory gas exchange.

Accepted Answer

A)  high; open circulatory system 
B)  high; closed circulatory system 
C)  low; closed circulatory system 
D)  high; separate system of air-filled tubes 
E)  low; closed circulatory system with multiple hearts 
A)  high; open circulatory system 
B)  high; closed circulatory system 
C)  low; closed circulatory system 
D)  high; separate system of air-filled tubes 
E)  low; closed circulatory system with multiple hearts D

Question 2

A high _______ will lead to an autoregulatory increase of blood flow to a tissue.

Accepted Answer

A)  blood pressure 
B)  CO2 concentration 
C)  O2 concentration 
D)  ATP concentration 
E)  glucose concentration 
A)  blood pressure 
B)  CO2 concentration 
C)  O2 concentration 
D)  ATP concentration 
E)  glucose concentration B

Question 3

Chemoreceptors on the aorta and carotid arteries are activated when

Accepted Answer

A)  blood PO2 rises. 
B)  blood PCO2 rises. 
C)  blood PCO falls. 
D)  blood PCO2 falls. 
E)  blood PCO rises. 
A)  blood PO2 rises. 
B)  blood PCO2 rises. 
C)  blood PCO falls. 
D)  blood PCO2 falls. 
E)  blood PCO rises. B

Question 4

A patient with vascular disease and presenting with speech impairment has likely suffered a _______, which is caused by an embolism in the brain.

Accepted Answer

The answer of A patient with vascular disease and presenting...

Question 5

Blood cells are created from _______ in the bone marrow.

Accepted Answer

The answer of Blood cells are created from _______ in...

Question 6

Blockage of a coronary artery can cause

Accepted Answer

A)  a heart attack. 
B)  a stroke. 
C)  hemophilia. 
D)  edema. 
E)  anemia. 
A)  a heart attack. 
B)  a stroke. 
C)  hemophilia. 
D)  edema. 
E)  anemia.

Question 7

Which is the incorrect match between blood component and function.

Accepted Answer

A)  Erythrocytes: transport O2 and CO2 
B)  Leukocytes: produce antibodies 
C)  Platelets: play a role in blood clotting 
D)  Erythrocytes: transport nutrients 
E)  Leukocytes: play a role in allergic responses 
A)  Erythrocytes: transport O2 and CO2 
B)  Leukocytes: produce antibodies 
C)  Platelets: play a role in blood clotting 
D)  Erythrocytes: transport nutrients 
E)  Leukocytes: play a role in allergic responses

Question 8

The blood vessels with the greatest capacity to store blood are the

Accepted Answer

A)  arteries. 
B)  arterioles. 
C)  capillaries. 
D)  veins. 
E)  venules. 
A)  arteries. 
B)  arterioles. 
C)  capillaries. 
D)  veins. 
E)  venules.

Question 9

Which of the following is not transported in a closed circulatory system?

Accepted Answer

A)  Heat 
B)  Respiratory gases 
C)  Hormones 
D)  Hemolymph 
E)  Cells of the immune system 
A)  Heat 
B)  Respiratory gases 
C)  Hormones 
D)  Hemolymph 
E)  Cells of the immune system

Question 10

Refer to the table.   Complete the table by matching each component of the vertebrate circulatory system to its function.The order should be from first row to last row.

Accepted Answer

A)  Capillaries, Veins, Arteries, Venules, Arterioles 
B)  Arteries, Capillaries, Veins, Venules, Arterioles 
C)  Veins, Venules, Arteries, Arterioles, Capillaries 
D)  Venules, Veins, Arterioles, Arteries, Capillaries 
E)  Arterioles, Veins, Venules, Arteries, Capillaries 
A)  Capillaries, Veins, Arteries, Venules, Arterioles 
B)  Arteries, Capillaries, Veins, Venules, Arterioles 
C)  Veins, Venules, Arteries, Arterioles, Capillaries 
D)  Venules, Veins, Arterioles, Arteries, Capillaries 
E)  Arterioles, Veins, Venules, Arteries, Capillaries

Question 11

Under which condition would fluid not return to capillaries?

Accepted Answer

A)  Severe decrease in blood protein concentration 
B)  Conversion by capillary endothelial cells of CO2 produced by cellular metabolism to HCO3-, which is released to the plasma 
C)  Blood hydrostatic pressure at the arterial end of a capillary bed exceeding blood osmotic pressure 
D)  Strenuous exercise 
E)  Dehydration 
A)  Severe decrease in blood protein concentration 
B)  Conversion by capillary endothelial cells of CO2 produced by cellular metabolism to HCO3-, which is released to the plasma 
C)  Blood hydrostatic pressure at the arterial end of a capillary bed exceeding blood osmotic pressure 
D)  Strenuous exercise 
E)  Dehydration

Question 12

Which of the following does not help return venous blood to the heart?

Accepted Answer

A)  Gravity, in veins above the level of the heart 
B)  Contraction of veins close to the heart 
C)  Contractions of surrounding skeletal muscles 
D)  One-way valves in veins 
E)  Negative pressure created by exhalation 
A)  Gravity, in veins above the level of the heart 
B)  Contraction of veins close to the heart 
C)  Contractions of surrounding skeletal muscles 
D)  One-way valves in veins 
E)  Negative pressure created by exhalation

Question 13

Refer to the figure.   Which of the following about the figure is false.

Accepted Answer

A)  The substance labeled 1 contains water, salts, and plasma proteins. 
B)  Number 2 indicates white blood cells and platelets. 
C)  Number 3 indicates the hematocrit. 
D)  The substance labeled 4 contains cells that transport oxygen and carbon dioxide. 
E)  The substance labeled 1 is called the buffy coat. 
A)  The substance labeled 1 contains water, salts, and plasma proteins. 
B)  Number 2 indicates white blood cells and platelets. 
C)  Number 3 indicates the hematocrit. 
D)  The substance labeled 4 contains cells that transport oxygen and carbon dioxide. 
E)  The substance labeled 1 is called the buffy coat.

Question 14

In the human heart, blood is pumped from the left ventricle into the

Accepted Answer

A)  right ventricle. 
B)  left atrium. 
C)  right atrium. 
D)  pulmonary circuit. 
E)  systemic circuit. 
A)  right ventricle. 
B)  left atrium. 
C)  right atrium. 
D)  pulmonary circuit. 
E)  systemic circuit.

Question 15

Which of the following does not occur either during or because of increased activity of baroreceptors in the aorta and carotid arteries?

Accepted Answer

A)  Inhibition of sympathetic nervous system signaling to arteries and arterioles 
B)  Slowing of the heart 
C)  Decreased parasympathetic signaling to the heart's pacemaker 
D)  Dilation of arterioles in peripheral tissues 
E)  Reduction in blood pressure 
A)  Inhibition of sympathetic nervous system signaling to arteries and arterioles 
B)  Slowing of the heart 
C)  Decreased parasympathetic signaling to the heart's pacemaker 
D)  Dilation of arterioles in peripheral tissues 
E)  Reduction in blood pressure

Question 16

A child falls off his bicycle and skins his knee.All the following processes are involved in the formation of the blood clot that seals the wound except

Accepted Answer

A)  clotting factors being activated by platelets. 
B)  activation of thrombin. 
C)  cleavage of fibrinogen into fibrin threads by prothrombin. 
D)  formation of a clot in a fibrin mesh. 
E)  platelets sticking to exposed collagen fibers at the wound site. 
A)  clotting factors being activated by platelets. 
B)  activation of thrombin. 
C)  cleavage of fibrinogen into fibrin threads by prothrombin. 
D)  formation of a clot in a fibrin mesh. 
E)  platelets sticking to exposed collagen fibers at the wound site.

Question 17

Which mechanism is not one of the mechanisms that facilitates the return of venous blood to the heart?

Accepted Answer

A)  Gravity, when veins are above the heart 
B)  Contraction of skeletal muscles 
C)  Breathing 
D)  Contraction of smooth muscle in most veins of the body 
E)  Valves in veins 
A)  Gravity, when veins are above the heart 
B)  Contraction of skeletal muscles 
C)  Breathing 
D)  Contraction of smooth muscle in most veins of the body 
E)  Valves in veins

Question 18

When you sat down to take this exam, you may have felt an increase in stress or perhaps the anticipation of performing well.This emotion likely triggered a response from the _______ nervous system.

Accepted Answer

The answer of When you sat down to take this...

Question 19

Which statement about capillaries is false?

Accepted Answer

A)  Capillaries in the brain are wrapped by glia. 
B)  Capillaries in the digestive tract and kidneys are less selective than those in the brain. 
C)  The blood-brain barrier refers to the high selectivity of capillaries in the brain. 
D)  All capillaries are permeable to O2, CO2, and small ions. 
E)  Large water-soluble molecules can easily pass through capillary walls. 
A)  Capillaries in the brain are wrapped by glia. 
B)  Capillaries in the digestive tract and kidneys are less selective than those in the brain. 
C)  The blood-brain barrier refers to the high selectivity of capillaries in the brain. 
D)  All capillaries are permeable to O2, CO2, and small ions. 
E)  Large water-soluble molecules can easily pass through capillary walls.

Question 20

Which represents the correct order in which action potentials spread from the atria to the ventricles during a normal heartbeat in the mammalian heart?

Accepted Answer

A)  Atrioventricular node F1F1F1S1F1F1F10 bundle of His F1F1F1S1F1F1F10 Purkinje fibers 
B)  Atrioventricular node F1F1F1S1F1F1F10 Purkinje fibers F1F1F1S1F1F1F10 bundle of His 
C)  Purkinje fibers F1F1F1S1F1F1F10 bundle of His F1F1F1S1F1F1F10 atrioventricular node 
D)  Sinoatrial node F1F1F1S1F1F1F10 Purkinje fibers F1F1F1S1F1F1F10 bundle of His 
E)  Sinoatrial node F1F1F1S1F1F1F10 ventricular muscle cells F1F1F1S1F1F1F10 Purkinje fibers 
A)  Atrioventricular node F1F1F1S1F1F1F10 bundle of His F1F1F1S1F1F1F10 Purkinje fibers 
B)  Atrioventricular node F1F1F1S1F1F1F10 Purkinje fibers F1F1F1S1F1F1F10 bundle of His 
C)  Purkinje fibers F1F1F1S1F1F1F10 bundle of His F1F1F1S1F1F1F10 atrioventricular node 
D)  Sinoatrial node F1F1F1S1F1F1F10 Purkinje fibers F1F1F1S1F1F1F10 bundle of His 
E)  Sinoatrial node F1F1F1S1F1F1F10 ventricular muscle cells F1F1F1S1F1F1F10 Purkinje fibers

Exam 49: Circulatory Systems

Insects with _______ metabolic rates rely on their _______ for respiratory gas exchange.

A high _______ will lead to an autoregulatory increase of blood flow to a tissue.

Chemoreceptors on the aorta and carotid arteries are activated when

A patient with vascular disease and presenting with speech impairment has likely suffered a _______, which is caused by an embolism in the brain.

Blood cells are created from _______ in the bone marrow.

Blockage of a coronary artery can cause

Which is the incorrect match between blood component and function.

The blood vessels with the greatest capacity to store blood are the

Which of the following is not transported in a closed circulatory system?

Refer to the table. Complete the table by matching each component of the vertebrate circulatory system to its function.The order should be from first row to last row.

Under which condition would fluid not return to capillaries?

Which of the following does not help return venous blood to the heart?

Refer to the figure. Which of the following about the figure is false.

In the human heart, blood is pumped from the left ventricle into the

Which of the following does not occur either during or because of increased activity of baroreceptors in the aorta and carotid arteries?

A child falls off his bicycle and skins his knee.All the following processes are involved in the formation of the blood clot that seals the wound except

Which mechanism is not one of the mechanisms that facilitates the return of venous blood to the heart?

When you sat down to take this exam, you may have felt an increase in stress or perhaps the anticipation of performing well.This emotion likely triggered a response from the _______ nervous system.

Which statement about capillaries is false?

Which represents the correct order in which action potentials spread from the atria to the ventricles during a normal heartbeat in the mammalian heart?

Studying Life

Small Molecules and the Chemistry of Life

Proteins, Carbohydrates, and Lipids

Nucleic Acids and the Origin of Life

Cells: the Working Units of Life

Cell Membranes

Cell Communication and Multicellularity

Energy, Enzymes, and Metabolism

Pathways That Harvest Chemical Energy

Photosynthesis: Energy From Sunlight

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

Dna and Its Role in Heredity

From Dna to Protein: Gene Expression

Gene Mutation and Molecular Medicine

Regulation of Gene Expression

Genomes

Recombinant Dna and Biotechnology

Mechanisms of Evolution

Reconstructing and Using Phylogenies

Speciation

Evolution of Genes and Genomes

The History of Life on Earth

Bacteria, Archaea, and Viruses

The Origin and Diversification of Eukaryotes

Plants Without Seeds: From Water to Land

The Evolution of Seed Plants

The Evolution and Diversity of Fungi

Animal Origins and the Evolution of Body Plans

Protostome Animals

Deuterostome Animals

The Plant Body

Transport in Plants

Plant Nutrition

Regulation of Plant Growth

Reproduction in Flowering Plants

Plant Responses to Environmental Challenges

Physiology, Homeostasis, and Temperature Regulation

Animal Hormones

Immunology: Animal Defense Systems

Animal Reproduction

Animal Development

Neurons, Glia, and Nervous Systems

Sensory Systems

The Mammalian Nervous System: Structure and Higher Functions

Musculoskeletal Systems

Gas Exchange

Nutrition, Digestion, and Absorption

Salt and Water Balance and Nitrogen Excretion

Animal Behavior

The Physical Environment and Biogeography of Life

Populations

Species Interactions

Communities

Ecosystems

A Changing Biosphere

Filters

Insects with _ metabolic rates rely on their _ for respiratory gas exchange.