Biology
Fill in the blanks:
(a) The first antibiotic penicillin was discovered by …………… .
(b) …………… bacteria is found living in the nodules on the roots of leguminous plants.
(c) The hormone …………… was the first substance produced by Escherichia coli.
(d) …………… is an example of denitrifying bacteria.
(e) …………… and …………… are the two heterotrophic modes of nutrition in bacteria.
Answer
(a) The first antibiotic penicillin was discovered by Alexander Fleming.
(b) Rhizobium bacteria is found living in the nodules on the roots of leguminous plants.
(c) The hormone insulin was the first substance produced by Escherichia coli.
(d) Pseudomonas is an example of denitrifying bacteria.
(e) Saprotrophic and parasitic are the two heterotrophic modes of nutrition in bacteria.
Related Questions
Name the following:
(a) The locomotory structure of a bacterium that enables it to swim.
(b) The process of flavouring tea by certain bacteria.
(c) The process of making leather from the animals skin.
(d) Bacterial disease of mustard.
(e) The scientist who discovered the antibiotic streptomycin.
Match the items in Column A with those in Column B
Column A Column B Penicillium Bacteria occurring in chains. Diplococci Antibiotic. Streptococci Bacteria occurring in pairs. Name the bacteria that converts
(a) ammonium compounds to nitrites
(b) nitrites to nitrates
In what form bacteria may be present in the air?