Bacteria

Question 1

Bacteria kingdoms and 2 characteristics

Answer 1

Eubacteria/Archaebacteria

unicellular/prokaryotic (no nucleus)

Question 2

General characteristics of bacteria

Answer 2

cell wall
one circular chromosome
measured in micrometers (1-10 long)
move using a flagella

Question 3

which process do bacteria reproduce?

Answer 3

binary fission, asexually

Question 4

what is a plasmid?

Answer 4

small loops/circles of DNA in a bacteria

some bacteria swap plasmid material through small tunnels called PILI. This is called conjugation.

Question 5

examples of archaebacteria

Answer 5

Methanogens, Extreme halophiles, Thermoacidophiles

halo= salt philes=likes

Question 6

Eubacteria

Answer 6

prokaryotic, aerobic and anaerobic, E. coli, Anabaena and Salmonella

Question 7

3 shapes of bacteria

Answer 7

Coccus (round) Bacillus (rod) Spirillum (spiral)

Question 8

Antibiotics

Answer 8

toxic to bacteria, prevents them from growing and reproducing
each antibiotic is specific to a certain type of bacteria
they only attack bacteria cells; do NOT effect our cells
DO NOT work on viruses

Question 9

Antibiotic Resistance

Answer 9

AB destroys all the weak and vulnerable bacteria (weak killed 1st, strong survive and more resources for them), a few resistant bacteria are able to survive and reproduce who then become the dominant type and plasmids containing AB resistant genes can pass between them during CONJUGATION which is a source of genetic variation

Question 10

Antibiotic resistance is increasing because…

Answer 10

increased usage of antibiotics
improper prescription and uses of antibiotics (might kill of good, bad and weak bacteria you have) because Dr.s are prescribing AB at an alarming rate