Podcast
Questions and Answers
Which type of organisms use existing organic molecules as a carbon source for biomass?
Which type of organisms use existing organic molecules as a carbon source for biomass?
- Chemoautotrophs
- Photoheterotrophs
- Chemoheterotrophs (correct)
- Photoautotrophs
What is the energy source for chemoautotrophs?
What is the energy source for chemoautotrophs?
- Organic molecules
- Light
- Inorganic carbon
- Chemicals (correct)
Which type of organisms can use oxygen but can also grow without it?
Which type of organisms can use oxygen but can also grow without it?
- Strict anaerobes
- Facultative anaerobes (correct)
- Anaerobes
- Aerobes
What is the main difference between lithotrophs and organotrophs?
What is the main difference between lithotrophs and organotrophs?
What is the function of oxidative phosphorylation in classic aerobic organotrophy?
What is the function of oxidative phosphorylation in classic aerobic organotrophy?
In which conditions are fermentations often carried out?
In which conditions are fermentations often carried out?
What is the end product of 'Ethanolic' fermentation of glucose?
What is the end product of 'Ethanolic' fermentation of glucose?
What does the reduction potential (E) indicate for a redox couple?
What does the reduction potential (E) indicate for a redox couple?
Which process involves anaerobic respiration with nitrate (NO3-) as a terminal electron acceptor, reduced to N2?
Which process involves anaerobic respiration with nitrate (NO3-) as a terminal electron acceptor, reduced to N2?
What is the primary source of energy for lithotrophy?
What is the primary source of energy for lithotrophy?
Anaerobic respiration by 'sulphate-reducing bacteria' is the reason marine sediments are smelly.
Anaerobic respiration by 'sulphate-reducing bacteria' is the reason marine sediments are smelly.
What is the main purpose of 'sporulation' in bacteria?
What is the main purpose of 'sporulation' in bacteria?
What is the distinctive feature of filamentous actinobacteria in terms of spore production?
What is the distinctive feature of filamentous actinobacteria in terms of spore production?
What is the primary characteristic of Mycobacterium cell envelope that contributes to its hydrophobic nature?
What is the primary characteristic of Mycobacterium cell envelope that contributes to its hydrophobic nature?
What is the role of streptomyces in decomposition in soil?
What is the role of streptomyces in decomposition in soil?
Which process involves unequal division inside the cell wall during endospore formation?
Which process involves unequal division inside the cell wall during endospore formation?
