FINAL bacteria Flashcards Preview

Biology > FINAL bacteria > Flashcards

Flashcards in FINAL bacteria Deck (31):
1

class of prokaryotes that live in harsh environments

archaebacteria

2

class of prokaryotes commonly found in our environment

eubacteria

3

bacteria that produce their own food using sunlight

photoautotrophs

4

bacteria that produce their own food using chemicals from the environment

chemoautotrophs

5

organisms that need to eat to survive

heterotrophs

6

what organelles are found in bacteria and what is their function

cell wall
ribosome-make proteins

7

four ways bacteria generate genomic variety

mutate, conjugation, transformation, transduction

8

t/f antibiotics are used for the treatment of fungal infections, viral infection, yeast infections and bacterial infections

false

9

what is the major cause of antibiotic resistance in this country and throughout the world

1) overprescription
2) pt compliance
3) agriculture

10

what cellular structure gives bacteria protection in their unicellular environment

cell wall

11

t/f bacterial dna is located in a membrane bound nucleus

false

12

what is the deadliest bacteria

tuberculosis

13

what bacterial toxin is one of the most deadly toxins

botox

14

name of the disease caused by eating food infected with botox

botulism

15

two benefits of having millions of bacteria in the large intestine

digest, produce vitamins:k

16

what species of bacteria are found in the intestines

e coli

17

what antibiotic is considered the last resort in treating bacterial infections

vancomycin

18

what does a gram's stain test for

thickness of the cell wall/peptitoglycan

19

what is the importance of doing a grams stain

which antibiotic to use

20

why is it important to fully cook ground beef

to kill bacteria

21

what bacteria is responsible for deaths including undercooked meat

e coli

22

what organism is responsible for ulcers? how was it proven?

h pylori; dr. marshall did tests on himself to prove it

23

what is bacteriophage therapy

viruses as drugs

24

what was the greatest limitation in the past to bacteriophage therapy

didnt have molecular tools

25

what is quorum sensing

conversation between bacteria

26

what are the four major functions of antibiotics

1) block DNA replication
2) obstruct metabolic processes
3) interfere with protein synthesis
4) interfere with production of bacterial cell wall

27

most pathogenic bacteria are gram

negative

28

LPS

lipopolysacchrides

29

what are the 4 mechanisms pathogens use to infect their host and escape from the innate immune system

1) sugar coating-phagocytic cells cant grow
2) go inside
3) toxins-shut down immune system
4) enzymes-hurt cells

30

what is a commensal

normal bacteria (vs. pathogen)

31

kochs four postulates

1) isolate organism from disease
2) grow in pure culture
3) innoculate test animal and cause same disease
4) isolate from test animal