Microbiology - Micro Organisms sample qustion &answer

Microbiology - Micro Organisms sample qustion &answer

1. The phospholipids present in cytoplasm membrane of the archaeo-bacteria is? 

A. phosphoglycerides 
B. polyisoprenoid 
C. polyisoprenoid branched chain lipids 
D. none of the above 
 

• Answer

  • Option C
  
  

2. The oldest eukaryotic organisms are considered to be 

A. diplomonads like Giardia 
B. archaea 
C. fungi 
D. animals 

• Answer

  • Option B

3. The phospholipids present in cytoplasm membrane of eubacteria is mainly 

A. phosphoglycerides 
B. polyisoprenoid 
C. phospholipoprotein 
D. none of these 

• Answer

  • Option A

4. Which were the investigators lived at the same time? 

A. Koch and Pasteur 
B. Darwin and Woese 
C. Van Leeuenhoek and Ricketts 
D. Berg and Hooke 
 

• Answer

  • Option A

5. The unifying feature of the archaea that distinguishes them from the bacteria is 

A. habitats which are extreme environments with regard to acidity 
B. absence of a nuclear membrane temperature 
C. presence of a cell wall containing a characteristic outer membrane 
D. cytoplasmic ribosomes that are 70S
 

• Answer

  • Option B

6. Mycoplasmas are different from the other prokaryotes by 

A. presence of chitin in cell walls 
B. presence of murrain in cell walls 
C. presence of proteins in cell walls 
D. absence of cell wall itself

• Answer

  • Option D

7. Evolutionary relationships between groups of organisms are determined using which of the following type of information? 

A. Comparisons of nucleotide sequences 
B. Comparisons of biochemical pathways 
C. Comparisons of structural features 
D. All of the above

• Answer

  • Option D

8. Which of the following is not true for eukaryotic cells? 

A. Nucleus is bounded by nuclear membrane 
B. Chromosomes contain histones 
C. Chloroplasts and mitochondria contains 70S ribosomes 
D. Gas vacuoles are present
 

• Answer

  • Option D

9. Which of the following is not true for prokaryotic organism? 

A. Nucleus is not bounded by nuclear membrane 
B. Chromosomes does not contain histones 
C. 80S ribosomes are distributed in cytoplasm 
D. Cell wall contains peptidoglycan as one of the major component 
 

• Answer

  • Option C

10. Gram staining was introduced by 

A. Christian gram 
B. Alfred Gram 
C. Robertcook 
D. Louis Pasteur 

• Answer

  • Option A