Write a Note on Internal Structure of Leaf
Note on Internal Structure of Leaf
- A) Anatomy:
Epidermis is present in upper and lower structure of leaf. Upper parts are the cells that have no inter cellular space. Lower parts contain stomata. Stomata are the combination of two guard cells. Their
function is absorption of useful materials and excretion of water materials.
Mesophyll tissues are of two types:
- i) Palisde mesophyll is such longer line vertically and in the form of double layer compactly arranged having no intercellular spaces.
- ii) Spongy mesophyll is not compactly arranged but intercellular spaces are present.
Vascular bundles are consists of xylem and phloem tissues.
- i) Xylem is present in star shape and its function is transportation of water.
- ii) Phloem is present in bundles and its function is the transportation of food in different parts of plant.
Note: It’s no secret that there are two forms of study at the university: full-time and correspondence. However, few people after graduating from school at least considered the option of enrolling in correspondence courses, because getting a diploma without regular attendance of studies raises suspicions about the quality of education. And although this is just a prejudiced attitude. Unlike the day, the correspondence form of training takes students a little time for lectures, seminars. Control of knowledge is limited to sessions and control work. Also, classical correspondence education provides for the completion of lectures with attestation control through examinations and tests. The indisputable advantage of this form of training is the opportunity to learn and work at the same time.
