1. Microorganism that can maintain life via fermentation or anaerobic respiratio
ID: 88536 • Letter: 1
Question
1. Microorganism that can maintain life via fermentation or anaerobic respiration. _________
2. Microorganism that can grow under saline conditions, and shows high tolerance to ionic stress, but salinity is not a requirement for survival._________
3. Microorganism that do not use aerobic metabolism, but tolerate oxygen due to enzymatic detoxification of toxic forms of oxygen.____________
4. Microorganism that grow best at temperatures below 15°C._______
5 Microorganism that requires high salinity to survive. __________
6. Dormant form certain low G+C Gram-positive bacteria, that resist heat, radiation, drying and chemicals. ___________
6. Microorganism that can survive in extremely hostile environments.__________
7. A culture composed of cells arising from a single progenitor._____________
8. Solid medium used to grow bacteria in petri dishes.____________
7 1 8 6 4 5 2Explanation / Answer
1. FACULTATIVE
2. SALT TOLERANT
3. AEROTOLERANT
4. PSYCHROPHILE
5. HALOPHILE
6. (Across) ENDOSPORE
6. (Down) EXTREMOPHILE
7. PURE CULTURE
8. AGAR
1. Facultative anaerobes are organisms that can live with or without free oxygen. They can maintain life via fermentation or anaerobic respiration even if oxygen is not available.
2. Salt tolerant microbes can grow under high salinity stress but is not a necessity for their survival.
3. Aerotolerant microbes do not require oxygen, but they are able to detoxify poisonous forms of oxygen if present.
4. Psychrophiles are cold loving having optimal temperature for growth at about 15°C. They grow best below 15°C.
5. Halophlies thrive at high salt concentrations. They are a type of extremophile microorganisms.
6 Bacterial endospores are a form of adaptation of bacteria that helps them to resist changes in the environment like heat, radiation, drying and chemicals. This extreme survival strategy is employed by bacteria like G+C Gram-positive bacteria.
6. Extremophiles can survive in extreme environment like high acidic solutions containing toxic heavy metals which are otherwise hostile to most life on earth.
7. Pure culture is a culture obtained from an isolated colony on a plate containing only one type of species, that is, they arise from a single progenitor.
8. Agar plate is a petri dish containing a growth medium consisting of agar and nutrients used to culture microorganisms. They are used to estimate the concentration of microbes or can also be used to generate pure culture from mixed cultures.
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