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WorksheetsA & P Respiratory Test
Total questions: 19
Worksheet time: 25mins
Which is NOT a process of respiration?
external respiration
transport of O2 and CO2
internal respiration
filtration and secretion
pulmonary ventilation
Pulmonary ventilation is also known as
external respiration
internal respiration
breathing
diffusion
Where does external respiration occur?
tissue cells
mouth & nose
lungs
heart
What happens during external respiration?
O2 diffuses out from the lungs into the blood; CO2 diffuses into the lungs from the blood
O2 diffuses into the lungs from the blood; CO2 diffuses out of the lungs into the blood
O2 diffuses out from the tissues into the blood; CO2 diffuses into the tissues from the blood
O2 diffuses into the tissues from the blood; CO2 diffuses into the tissues from the blood
What happens during internal respiration?
O2 diffuses out from the lungs into the blood; CO2 diffuses into the lungs from the blood
O2 diffuses into the lungs from the blood; CO2 diffuses out of the lungs into the blood
O2 diffuses out from the tissues into the blood; CO2 diffuses into the tissues from the blood
O2 diffuses into the tissues from the blood; CO2 diffuses into the blood from the tissues
Categorize the following parts of the respiratory system correctly
the throat
the voice box
the windpipe
splits into the esophags and larynx
passes air to the trachea
supported by rings of cartilage
Organize these options into the right categories
thin-walled air sacs
two branches at the bottom of the trachea
Small branches within the lungs
each lead to a lung
covered in capillaries
Organize these options into the right categories
hollow area behind the nose
full of hair and mucus to trap microbes and dust
door at the top of the larynx
dome-shaped muscle wall beneath the lungs
opens during breathing
closes during eating
contracts to cause inspiration
relaxes to cause expiration
Alveoli have enormous (a) to increase the rate of diffusion of CO2 and oxygen.
Air that enters the alveoli during inspiration is (a) in O2 and (b) in CO2.
Each hemoglobin molecule contains (a) iron atoms. Each iron atom can bind to (b) oxygen molecule. Therefore, hemoglobin can carry up to 4 oxygen molecules.
Each red blood cell contains (a) hemoglobin molecules, so each red blood cell can carry nearly (b) oxygen molecules!
CO2 is carried from the tissues to the lungs in a variety of ways: 7% dissolves into the (a) ; 23% binds to (b) ; and 70% reacts with water to form (c) ions as it travels through the blood.
Which structure monitors the level of CO2 carried in the blood?
Lungs
Heart
Kidneys
Brain stem
As you increase your level of activity, what happens to the level of CO2 in the blood?
there is less CO2 in the blood
there is more CO2 in the blood
Order the correct pathway of O2 once it enters the alveoli
Air
alveolar membranes
capillary walls
blood
Order the correct pathway of CO2 once it enters the alveoli
Blood
capillary walls
alveolar membranes
air
What happens when bicarbonate ions enter the lungs?
they convert back into CO2 and water so the CO2 can be exhaled
they are created when water and CO2 react and bind
they bind to additional bicarbonate ions due to the addition of more CO2
