Question 1

Leukemia ________.

Accepted Answer

A) decreases the production of white blood cells 
B) increases the production of red blood cells 
C) is a cancer of the white blood cells 
D) is a cancer that arises in the lungs 
A) decreases the production of white blood cells 
B) increases the production of red blood cells 
C) is a cancer of the white blood cells 
D) is a cancer that arises in the lungs

Question 2

Cigarette smoking has many health consequences. Choose the exception.

Accepted Answer

A) It is responsible for about one in five deaths of Americans every year. 
B) It accounts for 80-90% of all cases of lung cancer. 
C) Secondhand smoke can affect the health of nonsmokers. 
D) A former smoker will never attain the health status of a nonsmoker. 
A) It is responsible for about one in five deaths of Americans every year. 
B) It accounts for 80-90% of all cases of lung cancer. 
C) Secondhand smoke can affect the health of nonsmokers. 
D) A former smoker will never attain the health status of a nonsmoker.

Question 3

Earthworms use ________ as their respiratory organ.

Accepted Answer

A) lungs 
B) gills 
C) their skin 
D) tracheae 
A) lungs 
B) gills 
C) their skin 
D) tracheae

Question 4

In a human, the ________ provide(s)a common passageway for both food and air.

Accepted Answer

A) bronchioles 
B) trachea 
C) pharynx 
D) alveoli 
A) bronchioles 
B) trachea 
C) pharynx 
D) alveoli

Question 5

To allow rapid diffusion between the body and the environment, gas exchange requires a surface that is both ________.

Accepted Answer

A) durable and stiff 
B) protected within the body and connected to the circulatory system 
C) thin and moist 
D) permeable to oxygen and impermeable to carbon dioxide 
A) durable and stiff 
B) protected within the body and connected to the circulatory system 
C) thin and moist 
D) permeable to oxygen and impermeable to carbon dioxide

Question 6

What is the pathway an oxygen molecule would take through the human circulatory system?

Accepted Answer

A) systemic tissues → alveoli → pulmonary vein → pulmonary capillaries → systemic capillaries → left ventricle → left atrium → aorta → systemic arteries 
B) alveoli → pulmonary capillaries → pulmonary vein → left atrium → left ventricle → aorta → systemic arteries → systemic capillaries → systemic tissues 
C) alveoli → pulmonary capillaries → pulmonary artery → right atrium → right ventricle → pulmonary vein → systemic arteries → systemic capillaries → systemic tissues 
D) alveoli → pulmonary vein → pulmonary capillaries → systemic capillaries → left atrium → left ventricle → aorta → systemic arteries → systemic tissues 
A) systemic tissues → alveoli → pulmonary vein → pulmonary capillaries → systemic capillaries → left ventricle → left atrium → aorta → systemic arteries 
B) alveoli → pulmonary capillaries → pulmonary vein → left atrium → left ventricle → aorta → systemic arteries → systemic capillaries → systemic tissues 
C) alveoli → pulmonary capillaries → pulmonary artery → right atrium → right ventricle → pulmonary vein → systemic arteries → systemic capillaries → systemic tissues 
D) alveoli → pulmonary vein → pulmonary capillaries → systemic capillaries → left atrium → left ventricle → aorta → systemic arteries → systemic tissues

Question 7

Scenario
Yawning is a reflexive action that is often associated with sleepiness. When a person yawns, the mouth opens, and a longer than normal breath of air is inhaled, followed by a longer than normal exhalation. Hypothesizing that yawning has a regulatory mechanism similar to breathing, scientists conducted an experiment on college students to test the effect of existing carbon dioxide levels on yawning. 
-What must be TRUE if yawning has a regulatory mechanism similar to breathing?

Accepted Answer

A) Athletes should yawn more when exercising compared to when they are not exercising. 
B) Tibetan mountaineers yawn less when they are walking compared to when they are standing still. 
C) People adapted to lower altitudes should yawn the same amount when they are at high altitudes. 
D) Athletes who have trained at high altitudes should inhale a greater volume of air when yawning compared to those who have trained only at low altitudes. 
A) Athletes should yawn more when exercising compared to when they are not exercising. 
B) Tibetan mountaineers yawn less when they are walking compared to when they are standing still. 
C) People adapted to lower altitudes should yawn the same amount when they are at high altitudes. 
D) Athletes who have trained at high altitudes should inhale a greater volume of air when yawning compared to those who have trained only at low altitudes.

Question 8

In varicose veins, veins are enlarged and blood flows backwards from the normal flow. What might help return the blood flow in these veins to normal?

Accepted Answer

A) Reduce physical activity. 
B) Raise legs above the level of the heart when resting. 
C) Remove valves from varicose veins. 
D) Stand or sit still for long periods of time. 
A) Reduce physical activity. 
B) Raise legs above the level of the heart when resting. 
C) Remove valves from varicose veins. 
D) Stand or sit still for long periods of time.

Question 9

In animals with a closed circulatory system, gas exchange occurs across the thin walls of ________.

Accepted Answer

A) arteries 
B) arterioles 
C) capillaries 
D) venules 
A) arteries 
B) arterioles 
C) capillaries 
D) venules

Leukemia ________.

Cigarette smoking has many health consequences. Choose the exception.

Earthworms use ________ as their respiratory organ.

In a human, the ________ provide(s)a common passageway for both food and air.

To allow rapid diffusion between the body and the environment, gas exchange requires a surface that is both ________.

What is the pathway an oxygen molecule would take through the human circulatory system?

In varicose veins, veins are enlarged and blood flows backwards from the normal flow. What might help return the blood flow in these veins to normal?

In animals with a closed circulatory system, gas exchange occurs across the thin walls of ________.

Learning About Life

Essential Chemistry for Biology

The Molecules of Life

A Tour of the Cell

The Working Cell

Cellular Respiration: Obtaining Energy From Food

Photosynthesis: Using Light to Make Food

Cellular Reproduction: Cells From Cells

Patterns of Inheritance

The Structure and Function of Dna

How Genes Are Controlled

Dna Technology

How Populations Evolve

How Biological Diversity Evolves

The Evolution of Microbial Life

The Evolution of Plants and Fungi

The Evolution of Animals

An Introduction to Ecology and the Biosphere

Population Ecology

Communities and Ecosystems

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

The Bodys Defenses

Hormones

Reproduction and Development

Nervous, Sensory, and Locomotor Systems

The Life of a Flowering Plant

The Working Plant

Filters

Exam 23: Circulation and Respiration

Leukemia ________.

Cigarette smoking has many health consequences. Choose the exception.

Earthworms use ________ as their respiratory organ.

In a human, the ________ provide(s)a common passageway for both food and air.

To allow rapid diffusion between the body and the environment, gas exchange requires a surface that is both ________.

What is the pathway an oxygen molecule would take through the human circulatory system?

In varicose veins, veins are enlarged and blood flows backwards from the normal flow. What might help return the blood flow in these veins to normal?

In animals with a closed circulatory system, gas exchange occurs across the thin walls of ________.

Learning About Life

Essential Chemistry for Biology

The Molecules of Life

A Tour of the Cell

The Working Cell

Cellular Respiration: Obtaining Energy From Food

Photosynthesis: Using Light to Make Food

Cellular Reproduction: Cells From Cells

Patterns of Inheritance

The Structure and Function of Dna

How Genes Are Controlled

Dna Technology

How Populations Evolve

How Biological Diversity Evolves

The Evolution of Microbial Life

The Evolution of Plants and Fungi

The Evolution of Animals

An Introduction to Ecology and the Biosphere

Population Ecology

Communities and Ecosystems

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

The Bodys Defenses

Hormones

Reproduction and Development

Nervous, Sensory, and Locomotor Systems

The Life of a Flowering Plant

The Working Plant

Filters