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WorksheetsIntro to Micro Phsyiology of Bacteria LU 2
Total questions: 17
Worksheet time: 9mins
What is an organism that can survive only on dead or decaying organic matter?
obligate saphrophyte
obligate parasite
faculatative saphrophyte
facultative parasite
strict aerobe
Binary fission is a type of asexual reproduction in prokaryotic cells resulting in two individual cells with genetic consistency
True
False
Those bacteria that grow best at relatively high temperatures are called:
autotrophic bacteria
microaerophilic bacteria
psychrophilic bacteria
mesophilic bacteria
thermophilic bacteria
What is a microorganism that prefers an environment devoid or lacking oxygen but has adapted so that it can live and grow in the presence of oxygen?
Facultative aerobe
Facultative anaerobe
strict aerobe
strict anaerobe
The movement of water through a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration defines
diffusion
osmosis
osmotic pressure
surface tension
The temperature at which a species grows best is called
minimum temperature
optimum temperature
maximum temperature.
thermal death point
An organism that prefers the presence of oxygen but is capable of living and growing in its absence is called
facultative anaerobes
facultative parasites
obligate saprophytes
strict aerobes
microaerophiles
Whcih of the following interspecies relationship is between two or more organisms of different species in which they grow better together but can survive alone?
mutalism
commensalism
synergism
antagonism
parasitism
An organism that can build organic compounds in their protoplasm from simpler inorganic matter
heterotrophs
autotrophs
saprophytes
parasites
What is the force applied to a solution to inhibit inward movement of water across a semipermeable membrane called?
osmotic pressure
surface tension
osmotic tension
surface pressure
What is an organism that grows best in an oxygen-reduced environment, requiring very little free oxygen refered to as?
microaeaophilic
anaerobe
aerobe
cryophiles
What is the lowest temperature at which the organism can survive and replicate called?
Minimum temperature
Maximum Temperature
Optimum Temperature
Thermal death point
These organisms thrive at a temperature between 0°C (32°F) and 25°C (77°F). They prefer the cold.
Psychrophiles
Mesophile
Thermophiles
Microaerophilic
In which of the following relationships is one in which organisms of two different species live in close association to the mutual benefit of each?
Antagonism
Commensalism
Mutualism
Synergism
Parasitism
Which of the following lights are highly destructive to bacteria?
violet
direct sunlight
daylight
100 watt bulb
What is an organism that is completely dependent on its living host for survival called?
obligate parasite
obligate saprophyte
faculatative saprophyte
faculatative parasite
What does it mean for something to be anaerobic?
It requires CO2
It does not require CO2
It requires oxygen
It does not require oxygen
