Chapter 37:
Respiration, Circulation, and Excretion
Practice Test
1.
When you inhale __________.
a.
the muscles between the ribs contract
b.
the epiglottis covers the trachea
c.
air rushes out of the alveoli
d.
the diaphragm muscles relax
Hint
2.
Platelets, produced in the bone marrow, have which of the following actions?
a.
They deliver carbon dioxide to the lungs.
b.
They help blood clot after an injury that disrupts a blood vessel.
c.
They carry oxygen to the tissues.
d.
They attack foreign material in the blood.
Hint
3.
What is the main function of red blood cells?
a.
They transport food.
b.
They clot the blood.
c.
They attack foreign material.
d.
They transport oxygen.
Hint
4.
In mammals, including humans, the left ventricle is thicker than the right ventricle. This is due to the fact that the left ventricle __________.
a.
muscle is weaker, so it must be larger
b.
pumps blood to the lungs
c.
pumps blood to all of the body
d.
thickens as a result of the aging process
Hint
5.
If you have AB-type blood, what type of antibodies do you have in your blood?
a.
anti-A
b.
anti-B
c.
none
d.
anti-A and anti-B
Hint
6.
What process occurs in the alveoli?
a.
an exchange of oxygen into the blood and carbon dioxide out of the blood
b.
production of the iron containing protein molecule called hemoglobin
c.
initiation of the contraction of the respiratory muscles
d.
breakdown of glucose for energy utilization by body cells
Hint
7.
__________ pressure occurs when the heart`s ventricles contract.
a.
Systolic
b.
Diastolic
c.
Blood
d.
Pulse
Hint
8.
Which of the following is the order of blood through the heart?
a.
aorta, right atrium, left atrium, pulmonary arteries, pulmonary veins, right ventricle, left ventricle
b.
right ventricle, left ventricle, pulmonary arteries, pulmonary veins, right atrium, left atrium
c.
right ventricle, left ventricle, pulmonary veins, pulmonary arteries, right ventricle, left ventricle, aorta
d.
right atrium, right ventricle, pulmonary arteries, pulmonary veins, left atrium, left ventricle , aorta
Hint
9.
How does the pacemaker initiate the heartbeat?
a.
It secretes glucose to stimulate the cardiac muscle to beat.
b.
It signals the medulla to initiate the heartbeat.
c.
It generates an electrical impulse that spreads over the atria.
d.
It causes a hormone to be secreted to start the heartbeat.
Hint
10.
Which blood cells are large and nucleated?
a.
red blood cells
b.
white blood cells
c.
plasma
d.
platelets
Hint
11.
How does the majority of carbon dioxide travel in the blood?
a.
attached to red blood cells
b.
combined with water
c.
attached to white blood cells
d.
dissolved in the plasma
Hint
12.
What is the basic filtering unit of the kidney?
a.
Bowman`s capsule
b.
glomerulus
c.
urinary bladder
d.
nephron
Hint
13.
As materials pass from the Bowman`s capsule down the kidney tubules, ions move out of the tubules back into the blood by what process?
a.
diffusion
b.
passive transport
c.
osmosis
d.
active transport
Hint
14.
Which circulatory vessels contain valves and carry blood toward the heart?
a.
capillaries
b.
aortas
c.
arteries
d.
veins
Hint
15.
Which of the following is a mechanism used to clean the air you breathe?
a.
Cilia lining the alveoli constantly beat to move fluids out of the lungs.
b.
Cilia lining the bronchi constantly move mucus up towards your throat.
c.
Mucus inside the esophagus is sticky and traps foreign materials.
d.
Mucus in the trachea traps materials to be disposed of by the diaphragm.
Hint
