UNIT 3 CHAPTER 21-MONERA (BACTERIA)

Question 0

name the different shapes of bacteria ?

Answer 0

round
rod
spiral

Question 1

what are micro organisms ?

Answer 1

they are small living things

Question 2

what is the method called where bacteria reproduce asexually ?

Answer 2

binary fission

Question 3

how can some bacteria withstand harsh and unfavourable conditions ?

Answer 3

by producing endospores

Question 4

what does autotrophic mean ?

Answer 4

it means an organism makes its own food

Question 5

what does heterotrophic mean ?

Answer 5

it means an organism takes in food made by other organisms

Question 6

what are saprophytes ?

Answer 6

they are organisms that take in food from dead organic matter

Question 7

what are parasites ?

Answer 7

they are organisms that feed off a live host and cause harm

Question 8

what are pathogens ?

Answer 8

they are micro-organisms that cause disease

Question 9

what are antibiotics ?

Answer 9

they are chemicals produced by micro-organisms that stop the growth of, or kill, other micro-organisms without damaging human tissue

Question 10

what are the stages of the growth curve

Answer 10

A-lag phase
B-log phase
C-stationary phase
D-decline phase
E-death or survival stage