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Where are stomata located on a eucalyptus leaf?
Eucalypts are called "sclerophyllous" which means 'hard leaves'. This means they are hardy in low water conditions. They hang vertically so they are not exposed to the midday sun which reduces water loss through transpiration. For this reason many have stomata and chloroplasts on both sides of the leaf.
Are stomata present in xerophytes?
Yes, xerophytes have stomata. However, they typically have adaptations to help reduce water loss through transpiration, such as sunken stomata or hairs around the stomata to create a humid microenvironment.
Do lotus leaf have stomata?
Yes, lotus leaves have stomata, but they are located on the upper surface of the leaf rather than the lower surface. This unique positioning helps reduce water loss through transpiration while still allowing for gas exchange.
Why the stomata on undersurface of leaf?
Stomata are mainly found on the undersurface of leaves to reduce water loss through transpiration. The lower surface is generally more shaded and cooler compared to the upper surface, which helps to minimize water loss by reducing the rate of transpiration. Additionally, having stomata on the undersurface can also protect the stomata from direct sunlight, preventing excess water loss.
Why are stomata located on the underside of the leaf?
As the upper surface is covered with a waxy cuticle which protects the plant from dehydration if the stomata were covered by a cuticle they would not be able to function.
Where are stomata located on a eucalyptus leaf?
Eucalypts are called "sclerophyllous" which means 'hard leaves'. This means they are hardy in low water conditions. They hang vertically so they are not exposed to the midday sun which reduces water loss through transpiration. For this reason many have stomata and chloroplasts on both sides of the leaf.
Are stomata present in xerophytes?
Yes, xerophytes have stomata. However, they typically have adaptations to help reduce water loss through transpiration, such as sunken stomata or hairs around the stomata to create a humid microenvironment.
Do lotus leaf have stomata?
Yes, lotus leaves have stomata, but they are located on the upper surface of the leaf rather than the lower surface. This unique positioning helps reduce water loss through transpiration while still allowing for gas exchange.
Why the stomata on undersurface of leaf?
Stomata are mainly found on the undersurface of leaves to reduce water loss through transpiration. The lower surface is generally more shaded and cooler compared to the upper surface, which helps to minimize water loss by reducing the rate of transpiration. Additionally, having stomata on the undersurface can also protect the stomata from direct sunlight, preventing excess water loss.
Botanists believe that gymnosperm leaves have evolved sunken stomata below the leaf surface to reduce water loss from?
Transpiration.
How does the stomata density affect the water loss?
Stomata density directly affects the rate of transpiration (water loss) in plants. Higher stomata density means more openings for water vapor to escape, leading to increased water loss. Conversely, lower stomata density reduces the rate of transpiration and helps plants conserve water.
Why are stomata located on the underside of the leaf?
As the upper surface is covered with a waxy cuticle which protects the plant from dehydration if the stomata were covered by a cuticle they would not be able to function.
What is sunken stomata?
Sunken stomata are like normal stomata except they are literally sunken into the leaf a few micrometres. they are usually in a little chamber- imagine a tiny C shape cut into the leaf, and the stomata being on the inside curve of the the C, and the ends of the C being the outside of the leaf. they help prevent transpiration and loss of water vapour as they are more protected from external conditions that speed up transpiration such as winds than stomata which aren't sunken. sunken stomata are usually protected by hairs in the chambers, and these hairs are called trichomes. they trap the water vapour, whcih also helps prevents water loss.
Why is the stomata at the top for xerophytes?
Stomata are located on the top surface of xerophyte leaves to minimize water loss by reducing exposure to direct sunlight and wind. Placing stomata on the top surface helps create a more humid microenvironment around the stomata, reducing water loss through transpiration. This adaptation is crucial for xerophytes living in dry environments with limited water availability.
What are the openings or stomata during the hottest time of the day?
During the hottest time of the day, plants usually close their stomata to reduce water loss through transpiration and to prevent wilting. This helps them conserve water and maintain turgidity.
Where does water plants have stomata?
to prevent excessive water loss by transpiration
When do c4 plants keep their stomata closed?
C4 plants keep their stomata closed during hot and dry conditions to reduce water loss through transpiration. By keeping their stomata closed during these times, C4 plants can minimize water loss while still being able to carry out photosynthesis efficiently using their unique carbon fixation pathway.
