Free Kingdom Prokaryotae MCQs with Answers
533 Kingdom Prokaryotae MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
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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533 questions · page 26 of 27
- A. Tuberculosis and thyphoid
- B. Tuberculosis and measles
- C. Tuberculosis and cholera
- D. All of the above
Explanation: German physician Robert Koch was one of the founders of bacteriology. He discovered the anthrax disease cycle (1876) and the bacteria…
Correct answer: Tuberculosis and cholera- A. Robert Koch
- B. Louis Pasteur
- C. Alexander Fleming
- D. Leeuwenhoek
Explanation: Robert Koch was a German scientist who discovered the causative agents for deadly diseases like tuberculosis, cholera, and anthrax.
Correct answer: Robert Koch- A. Heterocysts.
- B. Akinetes.
- C. Nostoc.
- D. Hormogonia.
Explanation: Heterocysts are specialized cells found in certain filamentous cyanobacteria that are crucial for the process of nitrogen fixation.
Correct answer: Heterocysts.- A. Spirochete
- B. E. coli
- C. Cyanobacteria
- D. Pseudomonas
Explanation: Explanation:This option is correct because pseudomonas is an aerobic bacteria.
Correct answer: Pseudomonas- A. Microscopic bacteria
- B. Anaerobic bacteria
- C. Aerobic bacteria
- D. Methanogenic bacteria
Explanation: Explanation:The giant amoebas obtain energy from methanogenic bacteria which reside inside them, giant amoebas inhabit the mud at the…
Correct answer: Methanogenic bacteria- A. Hyphomicrobium
- B. Haemophilus aquaticus
- C. Haemophillus malariae
- D. Haemophillus infulenzae
Explanation: H. influenzae was the first free-living organism to have its entire genome sequenced.
Correct answer: Haemophillus infulenzae- A. Bacteria
- B. Fungi Cell
- C. Algae
- D. Cortex cells
Explanation: Bacterias have their cell walls made from peptidoglycan which is known to have sugars and amino acids as its constituents.
Correct answer: Bacteria- A. Round
- B. Oval
- C. Spiral
- D. Rod
Explanation: Escherichia coli is an example of rod shaped bacteria, also called Bacilli.
Correct answer: Rod- A. Spirilla
- B. Bacilli
- C. Spirochete
- D. Cocci
Explanation: Bacilli are rod shaped bacteria. Cocci are spherical shaped bacteria. Spirillas are corkscrew shaped bacteria.
Correct answer: Bacilli- A. Plant & Algae
- B. Algae & Fungi
- C. Fungi & Archaea
- D. Bacteria & Archaea
Explanation: Bacteria and Archaea are the groups where cell walls may be absent. While many bacteria have cell walls, there are some bacteria such as…
Correct answer: Bacteria & Archaea- A. 02
- B. 04
- C. 08
- D. 16
Explanation: Sarcina is a genus of bacteria that divides in three planes, resulting in the formation of packets of cells arranged in a cube-like…
Correct answer: 08- A. Cocci
- B. Bacilli
- C. Pleomorphic
- D. Spiral
Explanation: Helicobacter pylori exists as both a helix-shaped form (classified as a curved rod) and a coccoid form.
Correct answer: Pleomorphic- A. Mitosis
- B. Meioses
- C. Conjugation
- D. Fission
Explanation: Bacteria reproduce primarily by binary fission, an asexual process whereby a single cell divides into two.
Correct answer: Fission- A. Photosynthetic bacteria
- B. Autotrophic bacteria
- C. Cyanobacteria
- D. Chlamydomenas
Explanation: Cyanobacteria, also known as blue-green algae, are the simplest oxygen-producing organisms.
Correct answer: Cyanobacteria- A. Coccus bacterium
- B. Bacillus bacterium
- C. Spirillus bacterium
- D. Nitrobacterium
Explanation: Salmonella typhosa is the scientific name for the bacillus bacterium responsible for causing typhoid fever, a severe and potentially…
Correct answer: Bacillus bacterium- A. Rhizobium
- B. Bacillus
- C. Nitrosomonas
- D. Nitrobacter
Explanation: Nitrobacter is the correct answer because it is involved in the second step of nitrification, where it converts nitrite (NO2) to nitrate…
Correct answer: Nitrobacter- A. Slime mold
- B. Water mold
- C. Cyanobacteria
- D. Cyanobacteria Algae ponds
Explanation: The correct answer is Cyanobacteria Algae ponds. Cyanobacteria, often called blue-green algae, can form dense blooms in water, releasing…
Correct answer: Cyanobacteria Algae ponds- A. Hormogonia
- B. Akinetes
- C. Endospores
- D. Zygospores
Explanation: Endospores are the correct answer because they are specialized, durable structures that allow bacteria to survive in unfavorable…
Correct answer: Endospores- A. Atrichous
- B. Lophotrichous
- C. Amphitrichous
- D. Peritrichous
Explanation: Bacteria are classified based on the arrangement of their flagella, which affects their motility.
Correct answer: Peritrichous- A. Phycocyanin
- B. Phycoerythrin
- C. Phycobillirubin
- D. Phycobilliprotein
Explanation: The microbes also contain the same chlorophyll a compound used by plants.
Correct answer: Phycoerythrin