companion cells

Phloem (Bast) and its elements

by

It is a living, non-lignified tissue which is also called bast. Its main function is to transport organic food inside the plant body from the leaves to the storage organs and from the storage organs to various parts according to the need of the organ. Thus, the translocation of food by the phloem is in … Read more

Characteristics of Pteridophytes and its’ similarities with Bryophytes and Gymnosperms

by

Truly land plant with a well-developed vascular system. Also called vascular cryptogams. Sporophyte is the main plant body which reproduces by the spores. It has been derived from a Greek origin (Pteron-Feather and phyton-plant i.e. plants with feather like leaves). Their leaves are called fronds. Assemblage of seedless vascular plants that have successfully invaded the … Read more