WorksheetsBio-Human & Fish: Respiratory system
Total questions: 22
Worksheet time: 10mins
tiny sacs of lung tissue specialized for the movement of gases between air and blood.
lungs
bronchi
alveoli
diaphragm
the windpipe; a passage through which air moves in the respiratory system.
trachea
lungs
larynx
bronchi
Where does the transfer of oxygen into the bloodstream take place?
In the heart
In the trachea
In the alveoli
In the nasal passages
The walls of the alveoli and capillaries are permeable. What does this mean?
Substances can pass through them.
They are made of muscle.
They are located throughout the body.
They are made of bone.
1. larynx
2. nasal cavity
3. pharynx
4. trachea
Which of the following is the correct order that air would flow during inhalation.
With an increase of surface area to volume ratio, what happens to rate of gas exchange?
the rate of gas exchange increases
gas exchange decreases
fish breathe faster
diffusion of oxygen decreases
When particles move from area of high concentration to area of low concentration, this is...
osmosis
diffusion
concentration gradient
Which gas exchange method is most efficient?
Parallel flow
Counter-current flow
In this word equation for respiration, what is y representing?
Glucose + x --> y + water + energy
carbon dioxide
methane
oxygen
ATP
What is meant by a counter-current system?
A short distance for gases to diffuse
When water flows in an opposite direction to blood flow
having a higher concentration inside the lungs than outside
Which one of the following is true for gas exchange?
the movement of lungs.
the exchange of oxygen and carbon dioxide in lungs
the release of energy in cells
What is the advantage of countercurrent flow?
maintains a steep concentration gradient along the length of the diffusion pathway
reduces the concentration gradient along the length of the diffusion pathway
slows down the rate of diffusion
