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 27 of 27
- A. Sugar and amino acids
- B. Calcium pectate
- C. Glycoprotein
- D. Peptidoglycan
Explanation: Bacterial cell walls are made of peptidoglycan, also called as murein, which is made from polysaccharide chains cross-linked by unusual…
Correct answer: Peptidoglycan- A. Alpha-Protobacteria
- B. Beta-Protobacteria
- C. Gamma-Protobacteria
- D. Delta-Protobacterla
Explanation: Proteobacteria is a phylum of gram-negative bacteria. The Proteobacteria are further divided into 5 classes: Alphaproteobacteria…
Correct answer: Alpha-Protobacteria- A. Ecological time
- B. Population time
- C. Growth time
- D. Generation time
Explanation: Generation time is the time it takes for a population of bacteria to double in number or the interval between two successive divisions in…
Correct answer: Generation time- A. Lag phase
- B. Log phase
- C. Die
- D. Generation time
Explanation: After the lag phase, bacterial cells enter the exponential or log phase.
Correct answer: Log phase- A. Excrete
- B. Reproduce
- C. Decline phase
- D. Stop phase
Explanation: At the decline phase, bacterial growth decreases exponentially and many bacteria begin dying due to lack of nutrients or unfavorable…
Correct answer: Decline phase526. Archaea live in both extreme and moderate environments those living in extreme condition are called:
- A. Extremophile
- B. Methanogen
- C. Extremophyte
- D. Extremogeus
Explanation: The correct term for organisms that live in extreme environments is extremophile.
Correct answer: Extremophile- A. Alpha proteobacteria
- B. Beta proteobacteria
- C. Gamma proteobacteria
- D. Delta proteobacteria
Explanation: The correct answer is Gamma proteobacteria. This group includes chemolithotrophic sulfur bacteria, which are capable of oxidizing H2S to…
Correct answer: Gamma proteobacteria- A. Cyanobacteria
- B. Phototrophic organisms
- C. Anaerobic organisms
- D. All of the above
Explanation: It is a fact that the first organisms that oxygenated the atmosphere were cyanobacteria
Correct answer: Cyanobacteria- A. Beta-protobacteria
- B. Gama-protobacteria
- C. Alpha-protobacteria
- D. Delta-protobacteria
Explanation: Rhizobium belongs to alpha proto-bacteria, this is a fact and has to be learnt
Correct answer: Alpha-protobacteria- A. Fungi
- B. Bacteria
- C. Algae
- D. Plants
Explanation: Myxospores are actually not spores produced by fungi, but rather by certain groups of bacteria called Myxobacteria.
Correct answer: Bacteria- A. Bacill
- B. Spirilla
- C. Vibrio
- D. Cocci
Explanation: Bacillus is an example of bacteria that can be atrichous, meaning they do not have flagella or hair-like structures for movement.
Correct answer: Bacill- A. Bacteria
- B. Algae
- C. Fungi
- D. Both (A) & (B)
Explanation: The peptidoglycan layer is found in the cell wall of bacteria. It is a unique structural component that provides strength and rigidity to…
Correct answer: Bacteria- A. Amphitrichous
- B. Atrichous
- C. Lophotrichous
- D. Monotrichous
Explanation: A bacterium with a single polar flagellum is classified as Monotrichous.
Correct answer: Monotrichous