Microbial Growth & Virus

The growth of a microbe is defined as "increase in cellular constituents", this includes ALL the following EXCEPT:

• increase in number due to binary fission

• increase in coenocytic hyphae length

• increase in number due to budding in yeast cells

• increase in number due to growth in cell membrane

Carbon (C), Oxygen (O), Hydrogen (H), Nitrogen (N) and Sulfur (S) are examples of ____________

What type of media is this?

• Defined media

• Complex media

• None of the options

• Incomplete media

What type of media is "beef extract" media?

• Defined media

• Complex media

• None of the options

• Incomplete media

Why was agar chose as the solidifying agent in solid media?

• melts about 90 degreed Celsius

• harden until 45 degrees Celsius

• Not easily degraded by microbes

• All of the options

MORE THAN 1 ANS: What type of media is this: This media support the growth of many fastidious microbes but can discern the microbes based on their ability to produce hemolysis

• Enrich Media

• Selective Media

• Differential Media

• General Purpose

MORE THAN 1 ANS: Suzy wanted to grow Penicillin resistant E. coli, she added 100ppm penicillin to 1 liter of her general purpose media to ensure only penicillin resistant E. coli grew. What type of media is this?

• Selective Media

• Differential Media

• General Purpose Media

• Enrich Media

What type of culture is this: Microbe exponential growth last only a few generations.

• Batch Culture

• Continuous culture

• None of the options

• Both options

What type of culture is this: Is divided into two types - chemostats and turbidostats

• Batch culture

• Continuous culture

• None of the options

• Both options

MORE THAN 1 ANS: How do microbe respond to different osmotic concentration in the environment?

• Release of solutes in inclusion bodies

• use of contractile vacuoles to push the water out

• increasing internal osmotic concentration with compatible solutes

• None of the options provided