What are general characteristics of epithelial tissue?
Despite there being many different types of epithelial tissue all epithelial tissue have just five characteristics, these are cellularity, polarity, attachment, vascularity, and regeneration. Cellularity as the name suggests means that the epithelium is made up almost entirely of cells.
What are the characters of epithelial tissue?
Epithelial tissue is composed of cells laid together in sheets with the cells tightly connected to one another. Epithelial layers are avascular, but innervated. Epithelial cells have two surfaces that differ in both structure and function.
What 4 characteristics characterize epithelial tissue general?
What four attributes characterize epithelial tissue in general? 1. Epithelial cells are polar; they have a sense of direction relative to surrounding structures. Each cell has an apical surface and a basal surface.
What is the general structure and function of epithelial tissue?
Epithelial tissues are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands. They perform a variety of functions that include protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception.
What are the physical characteristics of an ascomycete?
The general characteristics of Ascomycetes are: Ascomycetes are commonly called as the sac fungi. Ascomycetes are haploid fungi. The mycelium is branched and septate with each segment having several nuclei.
What are the characteristics and features of epithelial tissue?
Epithelial tissue is composed of cells laid out in sheets with strong cell-to-cell attachments. These protein connections hold the cells together to form a tightly connected layer that is avascular but innervated in nature. The epithelial cells are nourished by substances diffusing from blood vessels in the underlying connective tissue.
How are ascomycetes mycelium different from plant tissue?
Ascomycetes mycelium may be organized into fungal tissue (Plectenchyma). Plectenchyma differs from the parenchyma of plants because it arises from apical growth of hyphae that become closely associated only secondarily.
What are the reproductive phases of an Ascomycota?
Ascomycetes have two distinct reproductive phases, one sexual, involving the formation of the asci and ascospores, and the other asexual, with spore production occurring at different times on the same mycelium. Some species of Ascomycota have only a sexual state.