Desulfobacter uses CO₂ from reverse TCA cycle as a major C-Source.

Among the given, microbes Spirillum linum have least G+C moles % (28-30).

This option is correct because both Lipase and Sucrase are examples of hydrolase.

During aerobic respiration, lesser number of ATPs is produced in eukaryotes (34 molecules of ATP) than in prokaryotes (38 molecules of ATP). This is because of the reason that, In eukaryotes some energy is lost when electrons are shuttled across the mitochondrial membranes that separate glycolysis (in cytoplasm) from the electron transport chain. No such separate mechanism exists in prokaryotes.

Correct answer. Gluconobacter species are used for oxidation of D-sorbitol into L-sorbose in the commercial production of vitamin C (ascorbic acid). Various strains of Aspergillus niger are used in the industrial preparation of citric acid. Streptococcus thermophilus is used in making reduced-fat cheese with similar characteristics to regular full-fat cheese. Glycerol is a major byproduct of ethanol fermentation by Saccharomyces cerevisiae.  

Very few gram-positive bacteria have the ability to oxidise glucose by Entner–Doudoroff pathway. Enterococcus faecalis is an example of gram-positive bacteria having the ability to oxidise glucose by Entner–Doudoroff pathway.

Bacteriochlorophyll absorbs in the range of 800-1000 nm. H₂S, other sulfur compounds or certain organic compounds act as photosynthetic electron donour in bacterial photosynthesis.

Entner-Doudoroff pathway was first reported by Michael Doudoroff and Nathan Entner in Pseudomonas saccharophila.

Aerotolerant anaerobes grow equally well in presence or absence of oxygen.

Ubiquinones (also known as Coenzyme Q) are non-protein electron carriers located in the inner mitochondrial membrane.

Campylobacter is a genus of bacteria that are gram-negative, spiral, and microaerophilic. Microaerophiles require oxygen levels in the range of 2 to 10% for their growth and are damaged by the normal atmospheric level of oxygen (20%).

Psychrophiles would be expected to grow at refrigeration temperatures. Psychrophiles grow at 0°C and has an optimum growth temperature of 15°C or lower.

Entner–Doudoroff pathway is an alternate series of reactions that catabolise glucose to pyruvate using a set of enzymes different from those used in glycolysis or pentose phosphate pathway.

Desulfotomaculum carboxydivorans is a moderately thermophilic, anaerobic, chemolithoheterotrophic, sulfate-reducing bacterium.

Actinomycin is obtained from Streptomyces antibioticus. Chloromycin is obtained from Streptomyces venezuelae. Leucomycin is obtained from Streptomyces kanamyceticus. Tetramycin is obtained from Streptomyces rimosus.