Chemicals, Toxins And Drugs

Question 1

Chemicals

Answer 1

Affect cells by binding to receptors, inhibiting or inducing enzymes or altering metabolic pathways, producing free radicals, increasing membrane permeability or damaging chromosomes or structural components of the cell
Oxygen at sufficiently high pressure is toxic

Question 2

Microbiologic agents

Answer 2

Range from viruses to tape worms. Also include rickettsiae, bacteria, fungi, insects and higher forms of parasites
Injury caused is exacerbated by the inflammatory and immune responses elicited