Microbial Groups

Assalamualaikum and Good Morning Dr. Wan! J

The next topic is Microbial Groups.

So, in this topic we have done watching Powtoon, answered quiz on quizlet and do crossword in kubbu.

Basically in  this topic we have learnt it in previous lecture.

So, the methods of microbial reproduction are :

a)      Binary fission

b)      Budding

c)      Fragmentation

d)      Formation of spores

e)      Sexual reproduction

The requirement to develop of microbial community are :

        I.            Physical growth requirement

      II.            Chemical growth requirement

For physical grow requirement, they need :

a)      Light

b)      Temperature

c)      pH

d)      Water activity and osmotic pressure

For chemical requirement, they need :

a)      Water

b)      Carbon

c)      Oxygen

d)      Nitrogen, Phosphorus and Sulfur

e)      Special growth factors

f)       Trace elements

There are two major nutritional  :

a)      Source of energy

b)      Source of carbon

# we have learnt it in previous semester.

In development of microbial communities there are three key process :

        I.            Selection strategies

      II.            Succession

    III.            Biofilms

In selection strategies, the population selection within communities is either r strategies or k strategies.

In succession, there are three types of succession :

        I.            Preemptive colonization

      II.            Autogenic succession

    III.            Allogenic succession

In biofilm, there are two types :

        I.            Simple biofilm

-          Microorganisms attach and form a monolayer of cells

      II.            Complex biofilm

-           layers of organisms

-          Formation depending on environment

Till we meet again, BYE! J