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