Types of neuroendocrine tumors. Various types of neuroendocrine tumors can occur in many places in the body and grow differently. Many NETs first appear in the lungs or the gastrointestinal tract, including the stomach, pancreas, appendix, intestines, colon and rectum. NETs may also appear in the thymus, thyroid gland, adrenal gland and pituitary gland.
Ricin is a type of biological toxin that is predominantly derived from the bean of the castor plant. Log in to see link for more information. Ricin is a type of biological toxin that is predominantly derived from the bean of the castor plant. Log in to see link for more information.
1 2. 2  TOXIGENESIS Two types of bacterial toxins 1. Lipopolysaccharides: are associated with the cell walls of Gram-ve bacteria.ï¼ 3  The lipopolysaccharide (LPS) component of the Gram-ve bacterial outer membrane bears the name endotoxin because of its association with the cell wall of bacteria.4  2. 2. 2  TOXIGENESIS Two types of bacterial toxins 1. Lipopolysaccharides: are associated with the cell walls of Gram-ve bacteria.