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1 Is there any advantage to a leaf in having palisade mesophyll on the upper half and spongy mesophyll on the lower half?
The upper side of the leaf receives maximum sun shine and the palisade cells are full of chloroplasts to synthesize food material by photosynthesis. The lower half of the leaf containing spongy mesophyll helps in gaseous exchange and transpiration. Thus the direct sunlight on palisade mesophyll helps in getting maximum light for better photosynthetic activity and lower half of the leaf away from sunlight checks the excess loss of water through transpiration.
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What are types of mesophyll cells?
The two main types of mesophyll cells found in plant leaves are palisade mesophyll cells and spongy mesophyll cells. Palisade mesophyll cells are located in the upper layer of the leaf and are specialized for photosynthesis, while spongy mesophyll cells are found beneath the palisade layer and aid in gas exchange and the storage of nutrients.
What are cells between the upper and lower epidermis of the leaf called?
Mesophyll In between upper and lower epidermis of leaf is mesophyll tissue. In the dorsiventral leaves, mesophyll is divisible into upper palisade cells and lower spongy parenchyma. The palisade cells are mainly involved in photosynthesis and spongy parenchyma in gaseous exchange.
What does the palisade mesophyll do in a leaf?
The palisade mesophyll is responsible for photosynthesis, as it contains chloroplasts and is where most of the photosynthetic activity in a leaf takes place. It is situated near the upper epidermis to receive sunlight for photosynthesis. Additionally, the palisade mesophyll cells are tightly packed together to maximize light absorption.
What are the advantages of having no chloroplast in the spongy mesophyll cells?
What would be the advantages to having no chloroplasts in the cells of the spongy mesophyll? Fewer chloroplasts in the spongy mesophyll because most of the light energy is absorbed by the chloroplasts of the palisade mesophyll. ... They waxy cuticle keeps water inside the leaf cells.
What kind of tissue forms the majority of leaf?
The majority of a leaf is composed of mesophyll tissue, which contains two types: palisade mesophyll and spongy mesophyll. Palisade mesophyll is located near the upper surface of the leaf and is responsible for most of the photosynthesis, while spongy mesophyll is found below and aids in gas exchange and nutrient storage.
What does the palisade do in the leaf?
The palisade mesophyll is superior to the spongy mesophyll (in most leaves) which aids in photosynthesis, but also serves a "sun block" to the more sensitive cells the spongy mesophyll.
What 3 kinds of leaf cells contain chloroplasts?
Palisade cells, spongy mesophyll cells, and guard cells contain chloroplasts in leaves. Palisade cells are located in the upper leaf epidermis, spongy mesophyll cells are below the palisade layer, and guard cells surround the stomata.
What are types of mesophyll cells?
The two main types of mesophyll cells found in plant leaves are palisade mesophyll cells and spongy mesophyll cells. Palisade mesophyll cells are located in the upper layer of the leaf and are specialized for photosynthesis, while spongy mesophyll cells are found beneath the palisade layer and aid in gas exchange and the storage of nutrients.
How many layers does the mesophyll have?
The mesophyll has two layers. The outermost layer is the palisade layer that is made of tightly packed chloroplasts, and the innermost layer is the "spongy layer" that has air between its cells.
What are two types of mesophyll?
The two types of mesophyll in plant leaves are palisade mesophyll and spongy mesophyll. Palisade mesophyll is located closer to the upper epidermis and consists of closely packed cylindrical cells that are specialized for photosynthesis. Spongy mesophyll is located beneath the palisade layer and consists of loosely arranged cells with air spaces for gas exchange and moisture retention.
What are cells between the upper and lower epidermis of the leaf called?
Mesophyll In between upper and lower epidermis of leaf is mesophyll tissue. In the dorsiventral leaves, mesophyll is divisible into upper palisade cells and lower spongy parenchyma. The palisade cells are mainly involved in photosynthesis and spongy parenchyma in gaseous exchange.
What does the palisade mesophyll do in a leaf?
The palisade mesophyll is responsible for photosynthesis, as it contains chloroplasts and is where most of the photosynthetic activity in a leaf takes place. It is situated near the upper epidermis to receive sunlight for photosynthesis. Additionally, the palisade mesophyll cells are tightly packed together to maximize light absorption.
What are the 2 layers that the mesophyll made of?
The mesophyll is located between the upper and lower epidermis.
What is the funtion of palisade mesophyll?
Palisade mesophyll cells are tall and closely packed to absorb maximum light. They contain many chloroplasts. Most photosynthesis takes place in the palisade cells. Spongy mesophyll also captures light and makes food.
What are the advantages of having no chloroplast in the spongy mesophyll cells?
What would be the advantages to having no chloroplasts in the cells of the spongy mesophyll? Fewer chloroplasts in the spongy mesophyll because most of the light energy is absorbed by the chloroplasts of the palisade mesophyll. ... They waxy cuticle keeps water inside the leaf cells.
What kind of tissue forms the majority of leaf?
The majority of a leaf is composed of mesophyll tissue, which contains two types: palisade mesophyll and spongy mesophyll. Palisade mesophyll is located near the upper surface of the leaf and is responsible for most of the photosynthesis, while spongy mesophyll is found below and aids in gas exchange and nutrient storage.
Where does most of the photosynthetic activity of a leaf take place?
In the spongy and palisade mesophyll, due to the large amounts of chloroplasts.
