In short, the blade of the leaf or the leaf blade is called the lamina of a leaf. It is the main part of the leaf, as all the chloroplasts, which are the reaction centres of the photosynthetic process carried out by the leaves for making their own nutrition, are present in the leaf lamina.
What is leaf blade in leaf?
Definitions of leaf blade. especially a leaf of grass or the broad portion of a leaf as distinct from the petiole. synonyms: blade. type of: foliage, leaf, leafage. the main organ of photosynthesis and transpiration in higher plants.
What are the functions of the parts of a leaf?
Structure-Function Relationship: Leaves
| Name of Structure | Structure | Function |
|---|---|---|
| Pith | Parenchyma with vacuoles and plastids | Storage, support |
| Plasmodesmata | Openings between sieve tubes connecting cytoplasm | Transport of sap |
| Spongy cells | Rounded, widely spaced, near stomata | Allow gas exchange |
| Suberin | Waxy molecule | Waterproofing |
•11-Dec-2015
How does the structure of the blade help with function?
The flat structure of a leaf blade enables it functions as a photosynthetic organ by increasing the surface area that is exposed to the sun.
What is the leaf blade called?
lamina Each leaf typically has a leaf blade called the lamina, which is also the widest part of the leaf. Some leaves are attached to the plant stem by a petiole. Leaves that do not have a petiole and are directly attached to the plant stem are called sessile leaves.
How do you describe a leaf blade?
The leaf blade: It is also called the lamina. It's generally broad and flat. It is in this layer that photosynthesis occurs. It contains a prominent midrib at the center of the leaf blade which is the main vein.
Why are the blades of leaves flat?
The majority of leaves are 'flat' so as to capture the maximum amount of light, protect the stomata beneath the leaf and lots of plants have pointed tips to help siphon off the water from the surface so that the surface is able to take up CO2.
What are the 3 main functions of a leaf?
(1) The leaves make food for the plant by photosynthesis. (2) The leaves get rid of excess water from the plant through transpiration. (3) The leaves carry out the process of respiration in plants. The leaves make food for the plant by the process of photosynthesis.
