Microbiology - Micro Organisms
Exercise :: Micro Organisms - Section 1
- Micro Organisms - Section 1
| 41. |
All the following are basic properties of cells except |
| A. |
cells have nuclei and mitochondria | | B. |
cells have a genetic programme and the means to use it | | C. |
cells are capable of producing more of themselves | | D. |
cells are able to respond to stimuli |
Answer: Option A
Explanation:
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| 42. |
Which of the following microorganisms is classified as a member of archaebacteria? |
| A. |
Gyanobacteria | | B. |
Methanobacteria | | C. |
Trichomonads | | D. |
Mycoplasma |
Answer: Option B
Explanation:
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| 43. |
The idea of selective toxicity was first proposed by |
| A. |
Antony van Leeuwenhoek | | B. |
Paul Ehrlich | | C. |
Louis Pasteur | | D. |
Alexander Fleming |
Answer: Option B
Explanation:
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| 44. |
Which of the following sequences has helped in identifying eukaryotes, eubacteria and archeabacterial cell types? |
| A. |
Signature sequence | | B. |
Signal sequence | | C. |
Shine-Dalgarno sequence | | D. |
Amino acid sequence |
Answer: Option A
Explanation:
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| 45. |
Archeal cells usually do not contain peptidoglycan, rather contain pseudo-peptidoglycan which is mainly composed of |
| A. |
N-acetylmuramic acid and L-amino acids | | B. |
N-acetylmuramic acid and D-amino acids | | C. |
N-acetyltalosaminuronic acid and D-amino acids | | D. |
N-acetyltalosaminuronic acid and L-amino acids |
Answer: Option D
Explanation:
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