0
What else can I help you with?
Why are stomata usually closed in the dark?
In the day plants use their stomatas to absorb carbon dioxide. However, in the night, plants absorb oxygen instead of carbon dioxide thus they stop their stomatas from absorbing anymore carbon dioxide by closing them
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.
What are general properties of ionic bonds?
Ionic bonds involve ions (charged particles) in which one ion is formed by losing electrons to become stable, while the other gains the same number of electrons to become stable.
Ions that are made of more than one atom are examples of what?
Ions made up of more than one atom are called polyatomic ions.
What is AgF?
Silver ions and Fluoride ions put together.
What is role of potassium ions in photosynthesis?
Potassium ions are important for photosynthesis as they help regulate the opening and closing of stomata, which are small pores on plant leaves that allow for gas exchange. This in turn affects the availability of carbon dioxide for photosynthesis. Potassium ions also play a role in activating enzymes involved in the photosynthetic process.
Influx of k plus ions into the guard cells and efllux of H plus ions from guard cells lead to A exmosmosis B plasmolysis C closing of stoma D opening of stomata?
D
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.
Which structure is responsible for the opening and closing of stomata?
guard cells
What do guard cells in a plant do?
The guard cells in a plant are responsible for opening and closing the stomata. The stomata is a tiny opening on the blade of a leaf that allows for carbon dioxide to enter and water + oxygen to be released. The guard cells are triggered by concentrations of potassium ions.
What is the relationship between guard cells and stomata?
Guard cells are cells on the edges of the stomata of a leaf. The stomata are very small pores that control water loss and keep the plant from drying out. When Abscisic Acid (ABA) - a stress hormone - is present, the Potassium ions (K+ ions) from the guard cells leave the guard cells for an unknown reason. This causes the stomata to close. Basically, guard cells assist stomata in opening/closing
What makes a plants Stomata open?
many factors influence the opening ang closing of the stomata one of this is during drought, stomata closes because of the high concentration of ABA that influence the conservation of water in the plant this is influenced by the concentration of K+, Cl- and H+ in the guard cell that enhances the water to be absorbed or released which affects the closing and opening, respectively. this may not be exactly right but this is how i remember it. you may reseach further about this.
How does stomata open?
The stomata's function is to allow gas exchange with the surrounding air, so that the plant can intake carbon dioxide and oxygen. Stomatal opening is favored when there is plentiful water and moderate temperatures. Abscissic acid, a plant hormone, acts on the guard cells to open and close stomata. Some plants are even genetically engineered with a mutated era gene, which makes them more sensitive to abscissic acid and more prone to the opening and closing of guard cells. When guard cells are full of water, they stretch away from each other and the stomata are open. When guard cells are limp, they fall on each other and the stomata are closed. Potassium ions play a role in the opening and closing of stomata by changing the concentration of ions in the guard cells. When the potassium ions are in the guard cells, water also flows in the guard cells because of osmosis and the stomata open. When the potassium ions are out of the guard cells, water also flows out of the guard cells because of osmosis and the stomata close.
How stomata reacts with water?
When light hits the stomata it activates photosynthetic K+ pumps. These cells pump potassium ions into the guards cell around the stomata. Water is attracted to the potassium ions and thus enters the guards cells. This causes the guard cells to swell, but the rigidity of the one side causes that side to bow inwards, this creates an opening for gases to exchange in the leaf. This opening is the stomata. When water is not present, the stomata will not open.
What role does potassium play in guard cell movement?
Potassium plays a crucial role in guard cell movement by regulating the opening and closing of stomata, which are small pores on plant leaves. When potassium ions (K+) are actively transported into guard cells, it causes water to enter the cells through osmosis, leading to swelling and the opening of the stomata. Conversely, when potassium is removed from the cells, water exits, resulting in cell shrinkage and stomatal closure. This process is vital for gas exchange and transpiration regulation in plants.
How do leaves of plants help ion excretion?
Leaves help in ion excretion by regulating the opening and closing of stomata, allowing for the release of excess ions through transpiration. Additionally, some ions can be actively transported into the leaf tissues and eventually shed off as older leaves are shed. This process helps the plant maintain proper ion balance and prevent toxicity.
Why do stomata open in distilled water?
They open in order to allow to allow air containing carbon dioxide to enter the leaf Edited answer: Distilled water is readily taken by the cell sap of gaurd cells of stomata by endo-osmosis and when gaurd cells become turgid, the stomatal pore becomes prominent
