18 Questions
What is the main function of stomata on the leaves of a plant?
Facilitate gaseous exchange for photosynthesis
When do the stomatal pores on leaves close?
When guard cells shrink and lose water
What is the purpose of placing potassium hydroxide in the experimental set-up with the plants?
To absorb carbon dioxide released by the plants
What causes the stomatal pores to open on leaves?
Swelling of guard cells due to water influx
In addition to leaves, where else does gaseous exchange occur in plants according to the text?
Stems, roots, and leaves surfaces
What is the function of guard cells in relation to stomata?
To regulate opening and closing of stomatal pores
How do plants store waste products like resins and gums?
In cellular vacuoles
What is an example of plant waste excretion mentioned in the text?
Storage in leaves that fall off
Which plant tissue is mentioned to store waste products like resins and gums primarily?
Xylem
How do plants excrete waste substances into the environment?
Through their leaves
When does most organ and tissue donation occur, according to the text?
After the donor has died
What is a common transplantation mentioned in the text?
Kidney transplant
What is the reason for plants having low energy needs?
As a result of having dead cells in many tissues
Which part of the plant actively takes up ions to create a concentration difference for water uptake?
Root cells
What is the main function of xylem in plants?
Conduct water and minerals from roots to other parts of the plant
Why is the pressure created by water uptake at the roots unlikely to be enough to move water over tall plant heights?
The pressure is too low to overcome gravity over large distances
Which tissue transports products of photosynthesis from leaves to other parts of the plant?
Phloem
Why is it important for conducting tubes in plants to be interconnected and form a continuous system?
To create a system of water-conducting channels reaching all parts of the plant
Explore how plants manage waste products through dead cells, vacuoles, leaf shedding, resins, and excretion into the soil. Learn about the generous act of organ donation and its impact on individuals in need.
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