Multiple Choice Questions MCQ in Microbiology: Preparation Material One

1. Which of the following is a non pathogen
   a. Yersinia Pestis b. Cryptococcus neoformans c. Anabaena spp d. Salmonella typhi
2. Prokaryotes are distinguished from eukaryotes by their
   a. Phospholipid plasma membrane b. Cytoplasm with ribosomes c. Nucleoid instead of nucleus d. Membrane bound organelles
   
   
3. Ribosomes are found in the eukaryotic cell
   a. in Mitochondria b. Free in the cytoplasm c. On the endoplasmic reticulum d. All of the above
4. Algae are always:
   a. Photosynthetic b. Blue-green c. Unicellular d. Eukaryotic
5. Which of the following does not allow observation of living cells?
   a. Brightfield Microscope b. Darkfield Microscope c. Phase contrast microscope d. Fluorescent microscope
6. Singular, small circular DNA is common to:
   a. Chloroplasts, mitochondria, golgi complex b. Chloroplasts, nucleoli, Mitochondria c. Prokaryotes, nucleoli, Chromosomes d. Chloroplasts, Prokaryotes, Mitochondria
7. Which of the following component is found in aracheobacterial cell walls?
   a. Lipoprotein b. Peptidoglycan c. Pseudopeptidoglycan d. Phospholipid
8. The arrangement of bacterial cells is
   a. Determined by growth medium b. Caused by chemotaxis c. A genetically determined trait d. All of the above
9. The plasma membrane has many function, not including:
   a. Regulation of reproduction b. Monitoring of the environment c. Replication of the chromosome d. Protection against osmoticysia
10. Bacteria treated with lysozyme are:
    a. Pleomorphic b. Protoplasts c. Capules d. Mycoplasma
11. Which of the following is not found in the growth curve?
    a. Lag phase b. Log phase c. Stationary phase d. Chemostat
12. Minimal media must contain;
    a. A source of trace element b. Source of purine c. Source of pyrimidines d. Nacl
13. Candle jars are used to culture.............. and reduce atmospheric ….......
    a. Anaerobes, oxygen b. Anaerobes, carbondioxide c. Microaerophiles, carbondioxide d. Microaerophiles, oxygen
14. Organisms that thrives in elevated carbondioxide are called:
    a. Microaerophiles b. Anaerobes c. Aerotolerant d. Caprophiles
15. The character of the nitrogeneous base of DNA determines:
    a. Sequence of folding of protein b. Base pairing and sequence c. Structure of the double helix d. Reactivity with acid.