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Guard cells, which regulate the opening and closing of stomata in plant leaves, were first described by the botanist Robert Brown in 1827. However, the functional significance of guard cells in gas exchange and water regulation was further elucidated by subsequent researchers. Brown's observations laid the groundwork for understanding the role of guard cells in plant physiology.
What else can I help you with?
Is a guard cell a tissue a organ or a cell?
A guard cell is a type of cell found in the epidermis of plant leaves. It is not a tissue or an organ; rather, it is a specialized cell responsible for regulating the opening and closing of stomata to control gas exchange and water loss in plants.
What is the function of a vacuole in a Guard Cell?
Vacuoles in guard cells help regulate the movement of water and ions in and out of the cell, which in turn affects the opening and closing of the stomata. The vacuole can change its volume to control the turgidity of the guard cell, leading to the opening and closing of the stomatal pore for gas exchange.
Fwho first discovered cell and that year was he born?
He was born 1967 and the year the first cell was made was in 1457
How plants open and close the stomata?
A chain of events leads to an increase in the concentration of sugar in the cell sap in the vacuole of guard cell. osmotic potential of cell sap decreases and guard cells withdraw water from the neighboring cells. this increases turgid pressure of the guard cells it swells up.the swelling of the outer wall causes the guard cells to curve away from each other so increases the gap between them stomata opens). and when guard cells lose water, they become flaccid and comes closer thus stomata closes.
What is the cell membrane referred to?
Plasma membrane.The cell membrane also called the plasma membrane or plasmalemma is the biological membrane separating the interior of a cell from the outside environment.
Was the first cell ever discovered the cork cell?
Well that was the fist discovered cell membrane
Is a guard cell a tissue a organ or a cell?
A guard cell is a type of cell found in the epidermis of plant leaves. It is not a tissue or an organ; rather, it is a specialized cell responsible for regulating the opening and closing of stomata to control gas exchange and water loss in plants.
In what cell does most photosynthesis happen?
guard cell and palliside cell
Who discovered the cell wall in the cell?
Rober Hook first observed the cell.So he also discovered the cell wall.
When a potassium ion (K ) enters a guard cell it creates a solution of?
When a potassium ion (K+) enters a guard cell, it creates a solution with a higher osmotic potential inside the cell than outside. This influx of K+ ions increases the osmotic pressure within the guard cell and leads to the uptake of water, causing the guard cell to swell and ultimately leading to stomatal opening.
What cell Robert brown discovered?
He discovered the cell nucleus within cells as one of his major accomplishments
Who discovered the first cell?
it was discovered by Robert HookRobert hook
Where was the mitochondria discovered?
in a cell.
What is the controls the movement into and out of cell?
prison guard
What controls the size the stoma?
a guard cell.
Who discovered disorde?
no one autcally now when a sickle cell was discovered
Who discovered the cell theory and when?
schelidenschwannvirchow
