Microbes in human welfare MCQ

1)If you suspect major deficiency of antibodies in a person ,to which of the following would  you look for confirmatory evidence ?
a)Serum albumins         b0Serum globulins         c)Fibrinogen in the plasma
d)Heamocytes
2)    Which of the following is a group of free living nitrogen fixingbacteris ?
        a)Nostoc ,Anabaena ,Aulosira
        b)Azotobacter ,clostridium         c)Rhizobium leguminosarum ,Azospirillum
        d)All of the above .
3)    In rice fields ,the most active nitrogen fixing  blue –green alga is
        a)Nostoc         b)Tolypothrix         c)Aulosira     d)Cylindrospermum
4)    Which one of the following pairs is wrongly matched ?
        a)    Methanogens     -Gobar gas
        b)    yeast     Ethanol
        c)    Streptomyces –Antibiotic
        d)    Coliforms –Vinegar
5)    Which one of the following correctly maches a Sexually Transmitted Disease (STD)with its pathogen .
        a)AIDS –Bacillus anthracis
        b)symphillis –Treponema pallidum        c)Urethritis –Entamoeba ginigivalis
        d)Gonorrhoea –Leishmania  donovani
6)    Diptheria is caused by
        a)poisons released by living bacterial cells into the host tissue
        b)Poisons released from dead bacterial cells into the host tissue .
        c)poisons released by virus into the host tissue
        d)excessive immune response ny the host’s body
7)    Disease associated with secretion of toxin is
        a)tetanus         b)TB        c)food poisoning         AIDS
8)    Whwn yeast ferments the glucose ,products are
        a)Carbon dioxide and ethanol             b)Carbon dioxide  and nitrous oxide
        c)carbon dioxide and hydrogen             d)CO2 and methyl alcohol
9)    pencillin was the first antibiotic made by Alexander Fleming  from 
        a)Pencillin chrysogenum     b)Pencillium notatum         c)Streptococcus thermophilus
        d)pencillium roqueforti
10)    Industrial production of ethanol  from starch is brought about by a certain species of
        a)Azotobacter             b)Lactobacillus             c)Saccharomyces    
        d)pencillin
11)    Which of the following enzymes is used to remove  protein stains from the clothes ?
        a)Protease             b)Lipase         c)Amylase         d)Cellulase
12)    The enzyme ,which is used in cheese making is
        a)lactase         b)protease         c)rennin    d)papain
13)    Lactic  acid was the first acid to be produced by fermentation .Which of the following  is used in lactic acid production ?
        a)Streptococcus lactis         b)Lactobacillus bulgaricus     c)Rhizopus  sp    
        d)All of the above
14)    Bacillus thuringiensis (Bt)strains have been used from designing novel
        a)bio –metallurgical technique             b)bio –mineralization processes    
        c)bio –insecticidal plants             d)bio fertilizers