Question 1

The combination of large numbers and small size collectively gives alveoli what characteristic that is essential to their function?

Accepted Answer

A) low air resistance 
B) easy inflatability 
C) low surface area 
D) high surface area 
A) low air resistance 
B) easy inflatability 
C) low surface area 
D) high surface area

Question 2

An athletic friend of yours recently had a blood test,asked for a copy of the report,and looked up numbers for his "total cholesterol," or combined LDL/HDL numbers.An online source lists his total as slightly high.He says,"My doctor's a quack! He told me my cholesterol was fine!" You press your friend for more details and come to understand that his LDL levels are within the healthy range,but his HDL levels are higher than average.What do you say to your friend to help him understand his doctor's comments?

Accepted Answer

The doctor was right.Even if it makes "t

Question 3

Blockage of the aorta is the most common fatal heart attack.

Accepted Answer

A) True 
 B)False

Question 4

The stimuli for contraction of the heart come from within the heart rather than from the nervous system.

Accepted Answer

A) True 
 B)False

Question 5

Which chamber of the heart is connected to the aorta?

Accepted Answer

A) right ventricle 
B) left ventricle 
C) right atrium 
D) left atrium 
A) right ventricle 
B) left ventricle 
C) right atrium 
D) left atrium

Question 6

Most of the oxygen in human blood is:

Accepted Answer

A) carried in the plasma membrane of red blood cells. 
B) carried on albumin. 
C) carried in hemoglobin. 
D) dissolved in the plasma. 
A) carried in the plasma membrane of red blood cells. 
B) carried on albumin. 
C) carried in hemoglobin. 
D) dissolved in the plasma.

Question 7

If a person is unable to clot blood properly,which of the following might be lacking?

Accepted Answer

A) platelets 
B) red blood cells 
C) white blood cells 
D) ions 
A) platelets 
B) red blood cells 
C) white blood cells 
D) ions

Question 8

The outer layer of an artery or vein is composed of:

Accepted Answer

A) epithelium. 
B) smooth muscle. 
C) connective tissue. 
D) cartilage. 
A) epithelium. 
B) smooth muscle. 
C) connective tissue. 
D) cartilage.

Question 9

Contraction of the diaphragm causes exhalation to occur.

Accepted Answer

A) True 
 B)False

Question 10

Which chamber of the heart receives blood from the lungs?

Accepted Answer

A) left ventricle 
B) right ventricle 
C) left atrium 
D) right atrium 
A) left ventricle 
B) right ventricle 
C) left atrium 
D) right atrium

Question 11

What relationship between LDLs and HDLs is the healthiest?

Accepted Answer

A) high levels of both HDLs and LDLs 
B) high levels of LDLs and low levels of HDLs 
C) low levels of LDLs and high levels of HDLs 
D) low levels of both HDLs and LDLs 
A) high levels of both HDLs and LDLs 
B) high levels of LDLs and low levels of HDLs 
C) low levels of LDLs and high levels of HDLs 
D) low levels of both HDLs and LDLs

Question 12

Why is the left side of the heart stronger than the right side of the heart?

Accepted Answer

A) The left side pumps blood to the right side of the body, which has more muscle mass. 
B) The left side receives more oxygen from the lungs. 
C) The right side pumps only to the lungs, and the left side pumps blood around the whole body. 
D) The right side pumps blood only to the brain, and the left side pumps blood around the whole body. 
A) The left side pumps blood to the right side of the body, which has more muscle mass. 
B) The left side receives more oxygen from the lungs. 
C) The right side pumps only to the lungs, and the left side pumps blood around the whole body. 
D) The right side pumps blood only to the brain, and the left side pumps blood around the whole body.

Question 13

Why do new red blood cells survive for only a few months?

Accepted Answer

A) The heart pumps red blood cells so often that their membranes deteriorate. 
B) The oxygen that red blood cells carry damages their organelles. 
C) Red blood cells do not have most organelles or a nucleus. 
D) The hemoglobin that red blood cells carry is toxic. 
A) The heart pumps red blood cells so often that their membranes deteriorate. 
B) The oxygen that red blood cells carry damages their organelles. 
C) Red blood cells do not have most organelles or a nucleus. 
D) The hemoglobin that red blood cells carry is toxic.

Question 14

Nerve-like muscle cells that function as the heart's pacemaker are found in the:

Accepted Answer

A) left ventricle. 
B) right ventricle. 
C) coronary arteries. 
D) atrioventricular valves. 
E) sinoatrial node. 
A) left ventricle. 
B) right ventricle. 
C) coronary arteries. 
D) atrioventricular valves. 
E) sinoatrial node.

Question 15

Water and plasma proteins make up about 99 percent of blood plasma.

Accepted Answer

A) True 
 B)False

Question 16

Blood in the pulmonary arteries is moving toward the heart.

Accepted Answer

A) True 
 B)False

Question 17

Which is the best description of the function of the respiratory system?

Accepted Answer

A) delivers carbon dioxide to the blood 
B) fills the lungs with air 
C) facilitates gas exchange between the environment and body cells 
D) delivers oxygen to the blood 
A) delivers carbon dioxide to the blood 
B) fills the lungs with air 
C) facilitates gas exchange between the environment and body cells 
D) delivers oxygen to the blood

Question 18

Formed elements in the blood consist of all the parts below except:

Accepted Answer

A) plasma proteins. 
B) white blood cells. 
C) platelets. 
D) red blood cells. 
A) plasma proteins. 
B) white blood cells. 
C) platelets. 
D) red blood cells.

Question 19

Match between columns
                        Premises: Larynx
Trachea
Pharynx
Bronchioles
Alveoli

Accepted Answer

The Answer of "upper throat" and tiny air sacs and is...

Question 20

Refer to the figure below, and then answer the following question(s).
  
-Which drawing,A,B,or C,depicts a formed element involved in gas exchange?

Accepted Answer

The answer of Refer to the figure below, and then...

Exam 30: Transport and Exchange 1: Blood and Breath

The combination of large numbers and small size collectively gives alveoli what characteristic that is essential to their function?

Blockage of the aorta is the most common fatal heart attack.

The stimuli for contraction of the heart come from within the heart rather than from the nervous system.

Which chamber of the heart is connected to the aorta?

Most of the oxygen in human blood is:

If a person is unable to clot blood properly,which of the following might be lacking?

The outer layer of an artery or vein is composed of:

Contraction of the diaphragm causes exhalation to occur.

Which chamber of the heart receives blood from the lungs?

What relationship between LDLs and HDLs is the healthiest?

Why is the left side of the heart stronger than the right side of the heart?

Why do new red blood cells survive for only a few months?

Nerve-like muscle cells that function as the heart's pacemaker are found in the:

Water and plasma proteins make up about 99 percent of blood plasma.

Blood in the pulmonary arteries is moving toward the heart.

Which is the best description of the function of the respiratory system?

Formed elements in the blood consist of all the parts below except:

Refer to the figure below, and then answer the following question(s). -Which drawing,A,B,or C,depicts a formed element involved in gas exchange?

Science As a Way of Learning: a Guide to the Natural World

Fundamental Building Blocks: Chemistry, water, and Ph

Lifes Components: Biological Molecules

Lifes Home: the Cell

Lifes Border: the Plasma Membrane

Lifes Mainspring: an Introduction to Energy

Vital Harvest: Deriving Energy From Food

The Green Worlds Gift: Photosynthesis

The Links in Lifes Chain: Genetics and Cell Division

Preparing for Sexual Reproduction: Meiosis

The First Geneticist: Mendel and His Discoveries

Units of Heredity: Chromosomes and Inheritance

Passing on Lifes Information: Dna Structure and Replication

How Proteins Are Made: Genetic Transcription, translation, and Regulation

The Future Isnt What It Used to Be: Biotechnology

An Introduction to Evolution: Charles Darwin, evolutionary Thought, and the Evidence for Evolution

The Means of Evolution: Microevolution

The Outcomes of Evolution: Macroevolution

A Slow Unfolding: the History of Life on Earth

Arriving Late,traveling Far: the Evolution of Human Beings

Viruses,bacteria,archaea,and Protists: the Diversity of Life 1

Fungi: the Diversity of Life 2

Animals: the Diversity of Life 3

Plants: the Diversity of Life 4

The Angiosperms: Form and Function in Flowering Plants

Body Support and Movement: the Integumentary, skeletal, and Muscular Systems

Communication and Control 1: the Nervous System

Communication and Control 2: the Endocrine System

Defending the Body: the Immune System

Transport and Exchange 2: Digestion, nutrition, and Elimination

An Amazingly Detailed Script: Animal Development

How the Baby Came to Be: Human Reproduction

An Interactive Living World 1: Populations in Ecology

An Interactive Living World 2: Communities in Ecology

An Interactive Living World 3: Ecosystems and Biomes

Filters