State the function of the cell labelled X.
X is a red blood cell and it is responsible in the transport of oxygen!
The table shows the percentage of some gases in four samples of air. Which sample is expired air?
C. The amount of CO2 will increase and O2 decreases in expired air, while nitrogen remain unchanged.
The graphs show the changes in the volume of air in the lungs of the same person, measured at different levels of activities. Based on the graph, which letter represents the person at rest?
Graph P, it shows less volume of oxygen (amplitude) and low heart rate (frequency). What about the graph if the person finished walking? Or finished running?
True or False: The structure labelled X is a trachea.
False! Gaseous exchange happens in the alveolus and bronchiole (X) will be the one supporting it.
Using the letters provided, in which order does blood pass through the chambers as it returns from the lungs during a complete circuit?
Q > R > P > S! The oxygenated blood will pass through left side first before become deoxygenated and return to right side.
This experiment was left for days. Predict what you'll observed with the limewater, explain your answer.
The limewater will turn milky! This is due to presence of carbon dioxide, as result of respiration.
Sodul was frightened by the sudden loud noise. What do you think happened to his heart rate and pupil when he's frightened?
Sodul's heart rate will increase and his pupil will become dilated!
Which is the septum?
A! Anyone knows the function?
