Q. What is the main basis of classification in the five-kingdom system? Structure of the nucleusStructure of cell wallAsexual ReproductionMode of Nutrition Answer: Mode of Nutrition

Q. Which of the following is not present in Bacteria? RNACell wallFlagellaMitochondria Answer: Mitochondria

Q. The gram negative bacteria detect and respond to chemicals in their surroundings by Volutin granulesLipopolysaccharidemuramic acidPorins Answer: Porins

Q. Bacteria used as biogas fermenters are HalophilesMethanogensCyanobacteriaVibrio bacteria Answer: Methanogens

Q. Who discovered conjugation in bacteria? Arber and SmithLederberg and TatumJacob and MonadZinder and Lederberg Answer: Lederberg and Tatum

Q. Organism a regarded as “Joker’s in microbiological park” BacteriaVirusMycoplasmaRickettsie Answer: Mycoplasma

Q. Bacteria do not need sunlight to grow because They prepare their food without the help of lightThey do not like sunlight brightnessDue to the absence of chlorophyll they are incapable of manufacture their own foodThey use other kinds of light for manufacturing their own food. Answer: Due ...

Q. The cells of cyanobacteria and bacteria exhibit similarly in having PlastidsNucleiDNACentrosome Answer: DNA

Q. Bacteria without flagella are known as AtrichousPeritrichousLophotrichousMonotrichous Answer: Atrichous

Q. Bacteria are classified on the basis of Method of reproductionNucleusCell wallpigments Answer: Cell wall