1 Most of these diseases are infections, caused by a variety of bacteria, viruses, and parasites that can be foodborne. 2  Other diseases are poisonings, caused by harmful toxins or chemicals that have contaminated the food, for example, poisonous mushrooms.
(cluster designation 4) symbol for a glycoprotein expressed on the surface of helper T lymphocytes and other immune cells. CD4 serves as a receptor for human immunodeficiency virus envelope glycoprotein gp120.
Models of the human immunodeficiency virus (HIV) and an animal cell are shown. What is the difference in the function of the glycoprotein structures of an HIV virion and the cilia of an animal cell? The glycoprotein structures are used for attachment, and the cilia are used to move fluids surrounding the cell. The glycoprotein structures are used to obtain nutrients, and the cilia are used to secrete proteins. The glycoprotein structures are used to provide physical support for the viral envelope, and the cilia strengthen the cell membrane. The glycoprotein structures are used for defense, and the cilia are used for locomotion.