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Which process makes the water potential in a leaf more negative?
A.The pressure placed on the leaf by the cuticleB.The evaporation of water from mesophyll cellsC.The movement of water into the leaf by root pressureD.The increased K+ pumped out of guard cellsE.The movement of water from the veins into the leaf
Using the term water potential how water moves from vascular tissue to atmosphere?
I took the following from the website below: http://www.cybered.net/commerce.asp?CatId=310&PrId=X5002116 The water is taken in by osmosis through the root-hair cells. The water then passes to the xylem tissue in the middle of the root and travels up the stem via the same xylem tissue. From the xylem in the leaf it passes through the air spaces and out into the atmosphere through the stomata. water potential draws in water from the soil and moves up through the xylem into the leaves This is possible because water is polar molecule and cohesion and adhesion resulting from Hydrogen bonds drag water up the xylem until they reach the stomata.
What effect moving the fan nearer to the cut shoot have on the rate of transpiration?
When water is lost from the leaves of a plant (transpiration), it forms a thin layer of water vapour on the leaf's surface. Windy conditions destroy this thin boundary, thus, maintaining the water potential gradient across the leaf and shortening the path for the water to reach the atmosphere.
What is the difference between water potential and chemical potential of water?
Plant water potential  w (psi) is a measure of physical(thermo - dynamic), the free energy expression of the amountof water (J mol-1), and accordingly the ability to perform work. The chemical potential of water μw is a relative value,expressed the free energy difference (J mol-1) between the chemical potential of water in a given biological (eg leaf) anddistilled water potential found in the same temperature andatmospheric pressure as a biological system. The chemical potential μ of distilled water * w is the maximum chemical potential of water in the plant and in an agreed value is set to 0. Presence of solvent water, or the existence of water stress reducing advice in the chemicalpotential of water and therefore, the chemical potential ofwater in solution or in the sacrum has a negative value. Water movement will take place spontaneously (without theneed to invest energy) from which the chemical potential ofwater is higher where the chemical potential of water is lower.
What part of the leaf releases water?
the bottom stem is the bottom of the leaf, therefore if the leaf is tilted all the water will leave.
Which process makes the water potential in a leaf more negative?
A.The pressure placed on the leaf by the cuticleB.The evaporation of water from mesophyll cellsC.The movement of water into the leaf by root pressureD.The increased K+ pumped out of guard cellsE.The movement of water from the veins into the leaf
How does humidity affect the water potential?
As you decrease humidity, I believe the water potential of the environment also decreases. Conversely, if you increase the humidity, the water potential increases. An example can be found in water movement of leaves. As the humidity increases, the rate of diffusion goes down because water moves from areas of high water potential to low water potential. Thus, as the humidity goes down, the rate of diffusion of water from leaves to the environment increases because water potential of the environment is lower (more negative) than the leaf's, so water flows out of the leaf.
Why lettuce leaf in contact with plain water is crispy while a lettuce leaf in contact within salad dressing containing salt and vinegar becomes wilted and limp?
it is to do with the water potential
How did each condition room fan light and mist affect the gradient of water potential from stem to leaf in the experimental plant?
Under the humid condition the rate of transpiration decreased, this is due to the fact that the water potential of the air surrounding the leaf was increased by the mist, this in turn minimized the gradient of water potential between the leaf and its surrounding environment, thus the process of transpiration lessened to some extent. This occurred because the rate of transpiration decreases proportionally to the amount of humidity in the air. Under windy conditions the rate of transpiration showed an increase, this is due to the fact that wind removes water vapor from the leaf's surrounding, resulting in a broader concentration difference between the leaf and its outer environment, therefore the leaf possessed a higher water potential as compared to its outside environment, and a more rapid loss of water occurred through the stomata.
What is the process of a tree sweating called?
Tree sweating? Never heard of that but do you mean transpiration? Where water is drawn out from the leaves of plants because of the difference in water potential gradient? (There's less water outside of the leaf so the water diffuses out of the leaf)
Does a leaf on a branch have potential energy?
yes
Using the term water potential how water moves from vascular tissue to atmosphere?
I took the following from the website below: http://www.cybered.net/commerce.asp?CatId=310&PrId=X5002116 The water is taken in by osmosis through the root-hair cells. The water then passes to the xylem tissue in the middle of the root and travels up the stem via the same xylem tissue. From the xylem in the leaf it passes through the air spaces and out into the atmosphere through the stomata. water potential draws in water from the soil and moves up through the xylem into the leaves This is possible because water is polar molecule and cohesion and adhesion resulting from Hydrogen bonds drag water up the xylem until they reach the stomata.
What do you call a water lily leaf?
The water lily leaf does not have a special name. It can be referred to as a "water lily leaf' or as the leaf of a certain water lily species.
What has stored gravitation potential?
a leaf hanging on a tree
How is water absorbed by a leaf?
it doesn't the water absorbs the leaf
What effect moving the fan nearer to the cut shoot have on the rate of transpiration?
When water is lost from the leaves of a plant (transpiration), it forms a thin layer of water vapour on the leaf's surface. Windy conditions destroy this thin boundary, thus, maintaining the water potential gradient across the leaf and shortening the path for the water to reach the atmosphere.
How does transpiration work in cut flowers?
Water from the xylem (vessel carrying water and minerals from roots to leaves) through osmosis going into the leaf cells (mesophyll cells) then diffused into the air space between these cells. When the water potential inside the leaf has a higher water potential then its soundings the water diffuses out of the stoma as water vapour. Thats the simple version!
