Course

Microbiology

Study Pack

Set 6 Microbial Viability And Growth

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Question 1

(Multiple Choice)

Free
Match the following terms or phrases with the correct description or definition.​
-​Turbidity

A)Devices which allow bacterial cultures to be grown at a steady rate by removing waste products and adding fresh nutrients.
B)The amount of cloudiness present of a bacterial population in liquid media.
C)Groups of chemical compounds which, when linked together form the building blocks of DNA or RNA.
D)A solution with osmotic pressure lower than inside a cell, causing cell to swell with fluid.
E)Essential organic compounds which cannot be synthesized by some microbes so must be obtained from the surrounding environment.
F)Ability of bacteria to communicate by way of secreted factors such as Autoinducers and behave as a cohesive group rather than as individuals.
G)A laboratory device which spins specimens to separate fluids of differing density or liquids from solids.
H)An adherent layer created by a multicellular group bound by an extracellular matrix produced by the colony.
I)Microbes with optimum temperature of 98.6° F or 37° C, normal human body temperature.
J)A mixture in which solid particles are mixed into and spread throughout a liquid medium.

Answer

Question 2

(Short Answer)

Free
_____________ is the basic building block for living organisms on Earth.​

Answer

Question 3

(Multiple Choice)

Free
Match the following terms or phrases with the correct description or definition.​
-​Growth factors

A)Devices which allow bacterial cultures to be grown at a steady rate by removing waste products and adding fresh nutrients.
B)The amount of cloudiness present of a bacterial population in liquid media.
C)Groups of chemical compounds which, when linked together form the building blocks of DNA or RNA.
D)A solution with osmotic pressure lower than inside a cell, causing cell to swell with fluid.
E)Essential organic compounds which cannot be synthesized by some microbes so must be obtained from the surrounding environment.
F)Ability of bacteria to communicate by way of secreted factors such as Autoinducers and behave as a cohesive group rather than as individuals.
G)A laboratory device which spins specimens to separate fluids of differing density or liquids from solids.
H)An adherent layer created by a multicellular group bound by an extracellular matrix produced by the colony.
I)Microbes with optimum temperature of 98.6° F or 37° C, normal human body temperature.
J)A mixture in which solid particles are mixed into and spread throughout a liquid medium.

Answer