The plant organ that absorbs the most light for photosynthesis is the leaves which is the main but not only organ that is responsible for turning the sunlight into food for the plant.
The green pigment that is found in most leaves absorbs the sunlight and is one of the important ingredients in the food making process.
When there is no sunlight the plants stop going through photosynthesis and they lose less water through transpiration as the stomata closes.
Without any sunlight the plants would eventually die.
If the plant is kept continuously without sunlight the plant will die as it cannot produce food without sunlight.
The plant will become dormant, producing neither oxygen nor carbon dioxide.
Plants don't lose water in the dark because the plants stomata closes in the dark and stops the water vapor from escaping and reducing the effect of transpirational pull.
Even then the root pressure still pumps some water up through the plant at night and to preserve the water and nutrient balance and prevent the cells from rupturing under pressure some of the plants lose excess water through guttation.
When the stomata are open the inside of the plant is exposed to the elements and any water from the plant is lost into the surrounding air which can dry out the plant.
The conditions in which the stomata would be closed would be under the conditions of high temperatures, high carbon dioxide concentration and water stress which all causes the stomata to close.
The reason stomata is so important is because stomata allows the plant to be able to take in carbon dioxide, which is required for photosynthesis to occur.
The stomata are also important as it helps to reduce water loss in plants by closing when conditions are dry or hot.
The reason stomata are closed at night is to enable the plant to save water when the photosynthesis is no longer empowered with sunlight.
However in some cases certain species of plants may still experience residual nighttime transpiration which can result in inefficient water loss.
Stomata do need sunlight as sunlight helps to control the opening and closing of the stomata and the stomata opens in response to light which also includes red light and blue light.
The red light causes the stomata to open via photosynthesis in the mesophyll and guard cell chloroplasts and blue light is a signal that induces stomtal opening as well.
The stomata are microscopic holes or pore structures in the leaf epidermis and it's controlled by a pair of guard cells that surrounds each stomata and the guard cells control the opening and the closing of the stomata or stomatal pore between them.
The stomata are tiny holes or pores and the function of stomata is to help the leaves in the exchange of gases and they also regulate the movement of water through a process called transpiration.
The stomatas are pores also known as tiny openings in plant tissue which allow for gas exchange in the plant.
Stomatas are typically found in the plant leaves but can also be found in some plant stems.
Specialized cells known as guard cells surround the stomata and function to open and close stomatal pores.
Stomatas are usually more numerous on the underside of the plants leaves.
And the stomatas provide for the exchange of gases between the outside air and the branched system of interconnecting air canals within the leaf.
stomata is also called a stoma in plants.
Stomata are responsible for the interchange of gases like oxygen and carbon dioxide for respiration and photosynthesis.
The stomatas help in the transpiration of water.
The stomatas close or open their pores to maintain the moisture balance based on climatic conditions.
The primary functions of stomata in a plant are for exchange of gases.
Closing and opening of stomata help in the exchange of gases between the plant its surrounding.
And it also facilitates the entry of carbon dioxide into the plant and removal of oxygen from the plant.
Stomata have guard cells that regulate their opening and closing.
These cells allow water to leave the plant due to turgor or transpiration.
In less light, the guard cells become flaccid causing the closing of the stomata.
If the stomata are blocked, it will stop the process of photosynthesis.
And during the night, stomata close, which enables the plant to save water when photosynthesis is no longer empowered with sunlight.
Although, depending on the species, or even the variety, residual nighttime transpiration may result in inefficient water loss.
As well as allowing gases in and out, stomata also control water loss.
When roots detect the soil is dry, they send a chemical signal to the leaves that causes specialized cells, called guard cells, to close the pores, stopping water vapor from escaping (transpiration).
The plants that have no stomata are aquatic plants.
The aquatic plants surface cells are capable of absorbing water, nutrients, and dissolved gases in the water.
Plants that live completely under water gather carbon dioxide from the water.
No other pores like stomata is required for this.
Hence aquatic plants don't have stomata.
Stomatal conductance is influenced by changes in nighttime temperatures as well.
For example, stomatal conductance in wheat is increased by 10% by high nighttime temperatures of 23 °C.
In contrast, stomatal density and conductance decrease when plants are grown with elevated CO2.