A1 Understand health issues page 8 Flashcards
What are some examples of infecting agents that cause diseases?
Infecting agents include viruses, bacteria, protoctists, fungi, and larger parasites like worms and insects.
What are pathogens?
Pathogens are infecting agents that cause disease in or on the body.
What is a microorganism?
A microorganism is a microscopic organism, including viruses, bacteria, fungi, and some protoctists.
What are parasites, and how do they affect their hosts?
Parasites live in or on another organism (the host), obtaining nourishment while causing harm to the host.
What are some diseases caused by viruses in humans?
Viruses cause diseases like HIV/AIDS, measles, mumps, influenza, herpes, and Ebola.
Can viruses cause cancer? If yes, provide an example.
Yes, viruses can cause cancer. An example is cervical cancer, which is caused by the human papilloma virus (HPV).
What are bacteria, and where do many inhabit in humans?
Bacteria are single-celled prokaryotic organisms, many of which inhabit the intestines of animals, including humans.
What are some examples of bacterial diseases?
Bacterial diseases include cholera, bacterial pneumonia, meningococcal meningitis, and whooping cough.
