Podcast
Questions and Answers
What is the function of the rings of cartilage in the human respiratory system?
What is the function of the rings of cartilage in the human respiratory system?
- Increase the surface area for gas exchange
- Produce mucus for filtering air
- Transfer oxygen to the bloodstream
- Prevent the air-passage from collapsing (correct)
Why does the surface for gas exchange in the respiratory system need to be fine and delicate?
Why does the surface for gas exchange in the respiratory system need to be fine and delicate?
- To produce mucus effectively
- To increase oxygen absorption (correct)
- To protect the surface from damage
- To facilitate carbon dioxide release
What is the role of alveoli in the human respiratory system?
What is the role of alveoli in the human respiratory system?
- Assist in moving air into the lungs
- Facilitate air filtration
- Produce mucus for protection
- Provide a surface for gas exchange (correct)
How does the chest cavity change during inhalation in humans?
How does the chest cavity change during inhalation in humans?
What is the primary driving force for the movement of water in the xylem during the day?
What is the primary driving force for the movement of water in the xylem during the day?
Which process is responsible for the loss of water as vapor from the aerial parts of the plant?
Which process is responsible for the loss of water as vapor from the aerial parts of the plant?
What creates a suction that pulls water from the xylem cells of roots into the leaf?
What creates a suction that pulls water from the xylem cells of roots into the leaf?
When is the effect of root pressure more important in the transport of water?
When is the effect of root pressure more important in the transport of water?
What is the main function of the xylem tissue in plants?
What is the main function of the xylem tissue in plants?
How are the xylem and phloem tissues described in terms of organization?
How are the xylem and phloem tissues described in terms of organization?
What creates a difference in ion concentration between the roots and the soil?
What creates a difference in ion concentration between the roots and the soil?
What is the purpose of covering pots with plastic sheets in Science Activity 6.8 described in the text?
What is the purpose of covering pots with plastic sheets in Science Activity 6.8 described in the text?
What is the main function of an artificial kidney in case of kidney failure?
What is the main function of an artificial kidney in case of kidney failure?
How does an artificial kidney function differ from a natural kidney?
How does an artificial kidney function differ from a natural kidney?
What happens to the waste products from the blood when it passes through the tubes of an artificial kidney?
What happens to the waste products from the blood when it passes through the tubes of an artificial kidney?
Why is it essential for the dialysing fluid in an artificial kidney to have the same osmotic pressure as blood?
Why is it essential for the dialysing fluid in an artificial kidney to have the same osmotic pressure as blood?
