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- 1. Multiple Choice
Which of the following statements show characteristics of Archaebacteria?
I. The cell walls do not contain peptidoglycan.
II. There are no membrane-enclosed organelles within their cytoplasm.
III. Their DNA consist of histone proteins.
IV. Their membrane lipid has unbranched hydrocarbon chain.
I, II and III
II, III and IV
I, II and IV
I, III and IV
- 2. Multiple Choice
Which compound in the cell wall that causes a Gram positive bacteria stain purple in colour when it is treated with crystal violet dye?
Cellulose
Lipoprotein
Peptidoglycan
Lipopolysaccharide
- 3. Multiple Choice
Cyanobacteria are
Photoheterotrophs
Photoautotrophs
Chemoautotrophs
Chemoheterotrophs
- 4. Multiple Choice
Which of the following statements are TRUE about organisms in the Domain Bacteria?
I. Consist of bacteria and cyanobacteria
II. Some are photoautotrophs
III. Genetic material is a single stranded DNA
IV. Organelles are not present
I and II
I, II and III
I, II and IV
I, II, III and IV
- 5. Multiple Choice
All answers listed below are true about bacteria except
all are prokaryotes
all are harmful
all are unicellular
they do not have nucleus
- 6. Multiple Choice
What material is found in most bacterial cell walls?
Cellulose
Chitin
Peptidoglycan
Amylose
- 7. Multiple Choice
A rod-shaped bacteria is called
spiral
bacillus
coccus
vibrio
- 8. Multiple Choice
The Gram-positive bacteria stain purple because
they form endospore
they have cellulose layer
they have thin peptidoglycan layer
they have thick peptidoglycan layer
- 9. Multiple Choice
Bacteria and Archaebacteria are both prokaryotes. How do they differ to each other?
Bacteria inhabit extreme environment while Archaebacteria inhabit diverse environment.
Bacteria inhabit diverse environment while Archaebacteria inhabit extreme environment.
Both inhabit diverse environment.
Both inhabit extreme environment.
- 10. Multiple Choice
Prokaryotes are differentiated from eukaryotes by
lacking of true nucleus and cytoskeleton
lacking of membrane bounded organelle
the flagella do not show 9+2 microtubule arrangement
All choices are true.
- 11. Multiple Choice
Which of the following statements concerning cyanobacteria is or are true?
Cyanobacteria are photosynthetic organism
Cyanobacteria are unicellular, some are filamentous, some are branched and form colonies
Cyanobacteria reproduce asexually by binary fission and fragmentation
All of the choices
- 12. Multiple Choice
Which domain has cell wall containing peptidoglycan?
Bacteria
Archaea
Eukarya
- 13. Multiple Choice
Which domain has nucleus?
Bacteria
Archaea
Eukarya
- 14. Multiple Choice
Which domain has membrane lipid with branched hydrocarbon?
Bacteria
Archaea
Eukarya
- 15. Multiple Choice
Which domain has DNA with no histone proteins?
Bacteria
Archaea
Eukarya
- 16. Multiple Choice
Which bacteria has complex cell wall with less amount of peotidoglycan?
Gram positive bacteria
Gram negative bacteria
- 17. Multiple Choice
Which bacteria are more virulent?
Gram positive bacteria
Gram negative bacteria
- 18. Multiple Choice
Which bacteria will stain blue or purple?
Gram positive bacteria
Gram negative bacteria
- 19. Multiple Choice
Which is NOT an importance of bacteria?
Act as decomposer in recycling of chemical elements.
Symbiotic
Causes Malaria disease
Recombinant DNA Technology
- 20. Multiple Choice
All below are unique characteristic of bacteria except
Has plasmid
Has circular DNA
Cell wall composed of chitin
Unicellular
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