0
What mechanism causes stomates to open when the guard cells are in good conditions?
Wiki User
∙ 14y ago
The reversible uptake and loss of potassium ions (K+)
Wiki User
∙ 14y ago
Wiki User
∙ 9y agoThe mechanism that causes stoma to open involves the regulation of osmotic pressure. The loss of potassium ions (K+) and the reversible uptake maintain the good conditions of the guard cells.
Add your answer:
Earn +20 pts
When would guard cells close the stomates?
Guard cells would close the stomata to prevent excess water loss through transpiration, normally when the weather is extremely hot or there is a lack of ground water. This is a regulatory mechanism to prevent dehydration.
Cells continually generate carbon dioxide and must get rid of it The mechanism by which carbon dioxide moves out of the cell is by?
simple diffusion
What is a positive feedback mechanism?
A positive feedback mechanism is a system the responds to perturbation in the same direction as the perturbation. A positive feedback mechanism allow cells to adapt to changes in their environment rapidly and efficiently. Positive feedback allows cells to reach new levels of equilibrium corresponding to the stimulus in the environment
What is a disorder in which cells lose the ability to control their growth rate?
Cancer is the disorder that causes someone's own cells in their body to lose the ability to control growth.
Which correctly describes the effect of crossing over during meiosis?
It causes the cell to split into four haploid cells.
Under what conditions would the guard cells close the stomates?
To prevent excess water loss through transpiration - normally when the weather is extremely hot or there is a lack of ground water. This is a regulatory mechanism to prevent dehydration.
When are stomates most likely to be open?
When cells are turgid.
Guard cells open and close stomates to prevent?
carbondioxide
Guard cells control the opening and closing of the stomates true or false?
true :)
Where does water vapor exit and CO2 enter a leaf?
There are openings on the underside of a leaf called stomates. They have guard cells shaped like lips. They open and close to allow CO2 in and H2O and O2 out. It works using hydrostatic pressure.
What is the mechanism for polycythemia?
Polycythemia causes an increase in red blood cells. Polycthemia occurs when there is an over abundance of red blood cells made by the bone marrow or chronic low oxygen levels.
How do cells respond to contact with other cells?
The cells do not carry out cell division when they come in contact with each other. This causes uncontrolled cell growth, which can lead to severe conditions such as cancer.
What are the main cells in the human kidney?
mechanism of main cells in a kidney?
When dry environmental conditions exist guard cells reduce water loss from plants by closing the openings in their leaves This process is an example of a feedback mechanism that plants use in order?
maintain homeostasis.
Which transport mechanism can bring whole cells into a cell?
none
What is a description of the mechanism that causes allergies?
Allergies result when antigens from allergens bind to mast cells, which release histamines, which in turn cause increased blood flow, sneezing, runny nose, and watery eyes.
Does the mechanism of the lethal hit of cytotoxic t cells and nk cells involves a protein called perforin?
TRUE
