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The explanation lies in how the stomata works. They regulate any gases that pass through them. When the temperature is too hot, it will close to conserve water vapor but this will block CO2 coming in also. Therefore plants don't want to have their stomata closed all the time nor opened all the time. Sunlight hits the top of the leaves and therefore the temperature and light intensity is higher on the top surface of the leaves. If many stomata were to be located on the top, the plant would loose much of its water and when the stomata closes to conserve water, it won't get as much CO2. Therefore for most plants, the stomata stay on the bottom where the temperature is a bit cooler. Also it is protected from the wind since wind can cause evaporation of water.
What else can I help you with?
Is The lower epidermis covered with cuticle?
No, the upper epidermis is covered by a cuticle.
What is the function of the plant upper epidermis?
The upper epidermis is responsible for preventing water loss by evaporation. It does this by having a waxy cuticle on the top of the leaf. The lower epidermis has stomata, which allow gases to enter and leave the leaf as a result of photosynthesis and respiration.
Why removing the lower epidermis layer of the leaf and not the upper epidermis?
Removing the lower epidermis layer allows for easier observation of stomata and overall leaf structure. Stomata are mostly located on the lower epidermis, which regulates gas exchange for photosynthesis. Additionally, removing the upper epidermis may damage the leaf's cuticle, which can affect its ability to retain water.
What part of a plant has two layers and is located between the upper and lower epidermis?
parenchyma
What is the waxy covering the upper and lower epidermis called?
The waxy coating the epidermis in a plant secretes is called a cuticle.
Why is the upper epidermis thicker than the lower epidermis?
the epidermis is thicker.
Which is more advantageous to plants-more stomata on the upper epidermis or lower epidermis?
upper epidermis for sure>>>
How many layer thick is the epidermis?
Answer: the epidermis of a leaf includes: upper epidermis and lower epidermis but if you are referring to the epidermis of an onion: it is only one layer
Is The lower epidermis covered with cuticle?
No, the upper epidermis is covered by a cuticle.
Where are mesophyll cells located?
Below the upper epidermis and above the lower epidermis.
What do lower epidermis do?
protects against water loss the same as the upper epidermis do
What is the job of the upper and lower epidermis layers?
the upper epidermis prevents water loss while the lower allows gases to enter and exit, resulting in photosynthesis
What is the job of the upper and lower epidermis layer?
the upper epidermis prevents water loss while the lower allows gases to enter and exit, resulting in photosynthesis
What best describes a leaf's epidermis?
The epidermis covers the lower and upper sides of the leaf.
How many layers does the epidermis have in hair?
how many layer of cells make up upper epidermis and lower epidermis
What will happen if you only apply vaseline on the upper epidermis of a leaf?
The leaf would curve to the upper epidermis exposing the lower epidemis
Which one has a larger curvature the upper or lower surface why is this so?
Lower epidermis
