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16 Questions

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Plant Water Transport Mechanisms

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Questions and Answers

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?

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?

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?

It becomes larger as ribs lift and diaphragm flattens Signup and view all the answers

What is the primary driving force for the movement of water in the xylem during the day?

Transpiration pull Signup and view all the answers

Which process is responsible for the loss of water as vapor from the aerial parts of the plant?

Transpiration Signup and view all the answers

What creates a suction that pulls water from the xylem cells of roots into the leaf?

Transpiration Signup and view all the answers

When is the effect of root pressure more important in the transport of water?

At night Signup and view all the answers

What is the main function of the xylem tissue in plants?

Moving water and minerals obtained from the soil Signup and view all the answers

How are the xylem and phloem tissues described in terms of organization?

Interconnected conducting tubes Signup and view all the answers

What creates a difference in ion concentration between the roots and the soil?

Active uptake of ions by root cells Signup and view all the answers

What is the purpose of covering pots with plastic sheets in Science Activity 6.8 described in the text?

To retain moisture by preventing evaporation Signup and view all the answers

What is the main function of an artificial kidney in case of kidney failure?

To remove nitrogenous waste products from the blood through dialysis Signup and view all the answers

How does an artificial kidney function differ from a natural kidney?

Artificial kidneys remove waste products through dialysis without reabsorption Signup and view all the answers

What happens to the waste products from the blood when it passes through the tubes of an artificial kidney?

They pass into the dialysing fluid by diffusion Signup and view all the answers

Why is it essential for the dialysing fluid in an artificial kidney to have the same osmotic pressure as blood?

To prevent any filtration of blood components into the dialysing fluid Signup and view all the answers