Answer:
Letter d. Evola virus could not produce an exotoxin
Explanation:
Viruses are acellular particles carrying genetic material only for their reproduction. None of the viruses produces toxins, viruses atack by altering the normal function of the host cell. In the other hand, bacteria involve in alimentary infections like <em>E. coli, S. aureus</em> and <em>C. botulinum</em> produce exotoxins to attack the host cells to colonize and start an infection. The exotoxin is too potent that alter the function of the intestinal cells before the immune system recognize the bacteria.
Adipose, blood
Finally, adipose tissue possesses very little matrix material while the matrix of blood is actually a non cellular fluid called plasma.
Adipose tissue is a loose connective tissue, usually located under the skin. Adipose tissue is made up of adipocytes and its primary function is to store energy in the form of fat in the body. It also protects and insulates the body from heat and cold. Two types of adipose tissue which are; white adipose tissue and brown adipose tissue are present in humans.
Answer:
<u>Functions of epithelial tissue:</u>
- i. Epithelial tissue covers the body outside and lines the various cavities inside.
- ii. Epithelial tissue lines the hollow organs, body cavities, blood vessels and ducts.
- iii. Cells are rested on thin, doubled layered, non-cellular basement membrane.
- iv. Epithelial tissue has nerve supply of its own.
- v. Epithelial tissue is avascular (a = without, vascular = vessel), i.e. it lacks its own blood supply and hence, obtains nutrients which diffuse out of blood vessels.
- vi. Epithelial tissue has the power of division and regeneration. The old injured dead cells are sloughed off regularly and are replaced by new ones.
