Under the microscope, the bacteria appear a bluish-purple color. Which class of bacteria are on the slide?
Correct answer: C. Rod
- A. Helix
- B. Around
- C. Rod
- D. Rigid helix
Explanation
c) Rod: The correct answer is option (c) "Rod." Rod-shaped bacteria are also known as bacilli. They have a cylindrical or rod-like shape. When stained using the Gram stain technique, some rod-shaped bacteria appear bluish-purple under the microscope. The color is a result of the Gram stain's interaction with the bacterial cell wall, which helps in the classification of bacteria based on their cell wall composition.
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About Kingdom Prokaryotae
Kingdom Prokaryotae includes bacteria and cyanobacteria, organisms with no membrane-bound nucleus or membrane-bound organelles. It covers their cell wall, capsule, flagella, plasmids, forms of nutrition, binary fission, useful and harmful roles, and the differences between prokaryotic cells and eukaryotic cells.
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