The term ______ refers to the ability of a microbe to exist in a wide range of conditions.
Eurytolerant
Stenotolerant
Obligate
Facultative
The Correct Answer is A
A. Eurytolerant: Refers to organisms that can survive and grow under a wide range of environmental conditions (e.g., temperature, pH, salinity).
B. Stenotolerant: Opposite of eurytolerant; can survive only within a narrow range of conditions.
C. Obligate: Indicates a strict requirement for a particular condition (e.g., obligate aerobe requires oxygen).
D. Facultative: Indicates flexibility with respect to certain conditions (e.g., facultative anaerobes can
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Related Questions
Correct Answer is A,D,C,E,B
Explanation
A) Inoculate — This is the first step in culturing microorganisms. The specimen or sample is introduced (inoculated) into a growth medium (solid or liquid) under sterile conditions to encourage microbial growth.
D) Incubate — After inoculation, the culture is placed in an incubator under suitable conditions of temperature, humidity, and atmosphere to allow growth.
C) Isolate — Once growth is visible, specific colonies are separated (isolated) to obtain pure cultures. This allows studying a single species of microorganism.
E) Inspect — The isolated colonies are then visually inspected (using naked eye or microscope) for morphological characteristics such as shape, color, size, and pattern.
B) Identify — Finally, biochemical, molecular, or serological tests are performed to identify the organism based on its characteristics.
Correct Answer is C
Explanation
A. Mitosis: Mitosis is a mode of nuclear division characteristic of eukaryotic cells that have a defined nucleus and mitotic spindle; prokaryotes lack a nucleus and do not undergo mitosis.
B. Meiosis: Meiosis is a form of reductive nuclear division associated with sexual reproduction in eukaryotes; prokaryotes do not perform meiosis.
C. Binary fission: Binary fission is the asexual division process used by most prokaryotes, where the cell duplicates its DNA and divides into two genetically similar daughter cells.
D. All of the above: This would imply prokaryotes use mitosis and meiosis as well as binary fission; because mitosis and meiosis are eukaryotic processes, this option is not accurate.
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