1. Which of the following is the molecule that allows your cells and organs to extract the maximum
amount of energy from the food you eat?
a. ATP
b. carbon dioxide
*c. oxygen
d. testosterone
2. Which of the following body systems carries blood throughout the body?
*a. circulatory
b. respiratory
c. digestive
d. endocrine
3. According to the text, which of the following major sporting events found multiple athletes
guilty of blood doping?
a. 2012 Summer Olympics
b. 2010 Winter Olympics
*c. the Tour de France
d. the World Cup
4. According to the text, about how many liters of blood per minute does the average person
pump through his or her body while at rest?
a. less than 1
b. about 2
*c. about 5
d. about 10
5. Veins are blood vessels that transport blood toward the heart.
True
Use the image below to answer questions 6 and 7.
Img= bozzone_quiz_images/capillary.jpg
6. Which of the following blood components stops bleeding by enabling blood to clot?
a. A
b. B
c. C
*d. D
7. Which of the following blood components is mostly water with the remaining 10% composed
of nutrients, hormones, waste, and dissolved gases?
a. A
b. B
*c. C
d. D
8. The atrioventricular valve lies between each ventricle and the vessel it uses to send blood from the
heart.
False
9. Look at the image below.
Img= bozzone_quiz_images/circulation.jpg
Which of the following structures is the right atrium?
a. A
*b. B
c. C
d. D
10. The respiratory and circulatory systems both use branching as a means to increase surface area for
gas exchange.
True
11. Look at the image below.
Img= bozzone_quiz_images/respiration.jpg
Where is the location that oxygen enters and carbon dioxide leaves the blood?
a. A
b. B
*c. C
d. D
12. What are the advantages of breathing through the nose, as opposed to breathing through the
mouth? Choose all that apply.
*a. It allows mammals to eat and breathe at the same time.
b. Nostril air is cooled.
*c. Nostril air is warmed.
d. Nostril air is less filtered.
13. Where do oxygen and carbon dioxide diffuse into and out of the blood?
a. in the trachea
b. in the respiratory pump
*c. in the alveoli
d. in the esophagus
14. How does hemoglobin help facilitate oxygen transport?
*a. The iron in the red blood cells absorbs more oxygen than the liquid parts of blood.*
b. Hemoglobin forces the oxygen to remain in the liquid part of the blood for cell availability.
c. Hemoglobin binds to carbon dioxide and inhibits oxygen binding.
d. The iron in the red blood cells repels oxygen and carbon dioxide so the liquid parts of the blood can
transport it.
15. As cells function, they create carbon dioxide as a waste product and need more oxygen. The blood
releases oxygen to the cells. This occurs because the blood has a higher oxygen concentration and a
lower carbon dioxide concentration than body tissues.
True
16. Why does your blood pressure increase during physical activity? Choose all that apply.
*a. During physical activity, muscles create more carbon dioxide and require more oxygen.
b. Physical activity causes more pressure on one side of the heart than the other, creating pressure.
*c. The physical demand for oxygen requires the heart to pump harder and faster.
d. Physical activity causes more pressure in the lungs than in the heart, creating blood pressure.
17. How does plaque in the walls of arteries affect blood pressure?
a. Plaque decreases friction and lowers blood pressure.
b. Plaque increases friction and lowers blood pressure.
*c. Plaque decreases the diameter of the arterial walls and raises blood pressure.
d. Plaque increases the diameter of the arterial walls and lowers blood pressure.
18. Which of the following are consequences of the lowering of blood pressure as blood moves away
from the heart? Choose all that apply.
*a. more time is allowed for blood to move through the capillary bed
b. friction is increased between the red blood cells and the capillary bed
*c. arterial rupture near the capillary beds is prevented
d. cells are prevented from absorbing too much food
19. Nerves from the medulla oblongata and the pons run directly to the chest, ribs, and diaphragm.
When the nerves fire, it causes inhalation.
True
20. Blood pressure sensors are primarily found in: Choose all that apply.
a. the medulla oblongata.
b. the pons.
*c. the aorta.
*d. the carotid arteries.
21. Which of the following helps to control heart rate? Choose all that apply.
a. positive feedback from blood pressure
*b. negative feedback from blood pressure
*c. a naturally occurring pacemaker
*d. hormones that circulate in the blood stream
22. Acetylcholine slows down the heart rate.
True
23. When plaque builds up in the arteries, which of following might occur? Choose all that apply.
a. blood pressure increases downstream from the plaque
*b. blood pressure increases upstream from the plaque
*c. blood flow and oxygen delivery are reduced downstream
d. blood flow and oxygen delivery are reduced upstream
24. If the brain only occupies about 2% of the body, why are strokes so devastating? Choose all that
apply.
a. The brain controls one main function.
*b. The brain controls many body functions.
*c. The brain requires 20% of the body’s oxygen.
*d. A stroke can cause a cascading effect as brain cells die.
25. Most athletes who engage in blood doping use their own stored blood to decrease detection. What
health risks can blood doping possibly cause if one’s own blood is used? Choose all that apply.
*a. It can increase the risk of heart attack.
*b. It can increase the risk of stroke.
c. It increase energy levels.
*d. It can increase the possibility of a pulmonary or cerebral embolism.