Unit 3 Review Questions Flashcards
1
Q
What is microbiology?
A
The study of microscopic organisms of either animal (bacteria, protozoa) or plant (fungus, mold) origin.
2
Q
What are bacteria?
A
Single celled organisms (sing. bacterium).
3
Q
What is normal flora?
A
Good bacteria found in the GI tract, nose, mouth, and on skin that keep us healthy.
4
Q
What is a pathogen?
A
An organism that produces an infection or disease.
5
Q
What are defense mechanisms?
A
Our body’s response to something foreign (white blood cells, skin, immune response) that prevents/protects from infection.
6
Q
What are antibiotics?
A
Drugs (or chemicals) that interfere with the life process of the pathogen, making them incapable of reproducing, and sometimes, killing the organism.
7
Q
Penicillins
(MOA)
A
Cell Wall Synthesis Inhibitors
- Beta lactam ring binds to and inhibits bacterial enzymes needed for cell wall synthesis
- Loss of the osmotic pressure, cell lysis, loss of nutrients, and cell death
