Microbiology - Micro Organisms
Exercise :: Micro Organisms - Section 1
- Micro Organisms - Section 1
| 26. |
Which of the following structures is the smallest? |
| A. |
Viriod | | B. |
Hydrogen atom | | C. |
Bacterium | | D. |
Mitochondrion |
Answer: Option B
Explanation:
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| 27. |
Which of the following is/are included in Kingdom Prokaryotae? |
| A. |
Bacteria | | B. |
Protozoa | | C. |
Fungi | | D. |
All of these |
Answer: Option A
Explanation:
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| 28. |
Which of the following may account for the small size of the cells? |
| A. |
The rate of diffusion | | B. |
The surface area/volume ratio | | C. |
The number of mRNAs that can be produced by the nucleus | | D. |
All of the above |
Answer: Option D
Explanation:
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| 29. |
Genetic and biochemical similarities between contemporary cyanobacteria and eukaryotic chloroplasts are accepted to mean that |
| A. |
eukaryotes evolved from bacteria | | B. |
eukaryotes evolved from archaea | | C. |
oxygenic photosynthesis first evolved in eukaryotes | | D. |
cyanobacteria arose from chloroplasts which escaped from plant cells |
Answer: Option B
Explanation:
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| 30. |
Which of the following best represents the hierarchy of levels of biological classification? |
| A. |
Phylum, kingdom, class, order, genus, species, family | | B. |
Kingdom, phylum, class, order, family, genus, species | | C. |
Kingdom, phylum, family, class, order, genus, species | | D. |
Class, order, kingdom, phylum, family, genus, species |
Answer: Option B
Explanation:
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