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 17 of 27
- A. Streptococci
- B. Staphylococci
- C. Tetrad
- D. Sarcina
Explanation: Streptococci is the correct answer. Streptococci refer to a chain-like arrangement of spherical bacteria (cocci).
Correct answer: Streptococci- A. Fibrin
- B. Tubulin
- C. Keratin
- D. Flagellin
Explanation: The flagella of bacteria are composed of flagellin, which is a protein.
Correct answer: Flagellin- A. Cocci
- B. Bacilli
- C. Pseudomonas
- D. Spirillum
Explanation: A spirillum is a type of bacteria that has a spiral shape. They are typically rod-shaped, but they have a helix that can vary in length…
Correct answer: Spirillum- A. Cytoplasmic matrix
- B. Cytoplasm
- C. Protoplast
- D. Cell Structure
Explanation: A bacterial protoplast refers to a bacterial cell that has had its cell wall removed or partially digested, leaving only the cell membrane…
Correct answer: Protoplast- A. Unicellular
- B. Lack of membrane-bound organelle
- C. Lack of a nucleus
- D. They are found in protists and fungi
Explanation: Prokaryotic cells are not typically found in protists or fungi. Instead, prokaryotic cells are a characteristic of bacteria and archaea.
Correct answer: They are found in protists and fungi- A. Flagella
- B. Capsule
- C. Gas vesicles
- D. None of these
Explanation: Cyanobacteria, also known as blue-green algae, can exhibit motility through a few different mechanisms, although many species are…
Correct answer: Gas vesicles- A. Mesosomes and cell membrane
- B. Cell membraneand ribosome
- C. Mesosomes and ribosomes
- D. All of Above
Explanation: The cell membrane regulates the transport of proteins, nutrients, sugar, and electrons or other metabolites.
Correct answer: Mesosomes and cell membrane- A. Purple spheres
- B. Clear rods
- C. Pink rods
- D. Purple spirals
Explanation: Methicillin-resistant Staphylococcus aureus (MRSA) is a type of Gram-positive bacterium that is resistant to multiple antibiotics…
Correct answer: Purple spheres- A. Gram-positive bacteria
- B. Gram-negative bacteria
- C. Chemosynthetic bacteria
- D. None of above
Explanation: Pili, are more commonly found in Gram-negative bacteria. While some Gram-positive bacteria may have surface appendages or structures that…
Correct answer: Gram-negative bacteria- A. Motility
- B. Conjugation
- C. Chemical detection
- D. None of above
Explanation: Based on the explanations provided, the correct answer to the question is option B) Conjugation.
Correct answer: Conjugation- A. Staphylococci
- B. Pseudomonas
- C. Diplococcus pneumonia
- D. Mycoplasmas
Explanation: Based on the explanations provided, the correct answer to the question is option D) Mycoplasmas.
Correct answer: Mycoplasmas- A. Cell membrane
- B. Chromatin
- C. Ribosome
- D. Capsule
Explanation: Based on the explanations provided, the correct answer to the question is option D) Capsule.
Correct answer: Capsule- A. Conjugation
- B. Transformation
- C. Transduction
- D. Binary Fission
Explanation: Based on the explanations provided, the correct answer to the question is option D) Binary Fission.
Correct answer: Binary Fission- A. Cocci
- B. Bacilli
- C. Streptobacillus
- D. Vibrio
Explanation: Based on the explanations provided, the correct answer to the question is option A) Cocci. Cocci bacteria do not commonly have flagella.
Correct answer: Cocci- A. The bacteria is anaerobic
- B. The bacterial sample was pretreated with 3% ethanol
- C. The bacteria's periplasmic space
- D. The bacteria's thick peptidoglycan cell walls
Explanation: Based on the explanations provided, the correct answer to the question is option D) The bacteria's thick peptidoglycan cell walls.
Correct answer: The bacteria's thick peptidoglycan cell walls- A. Protein
- B. Enzyme
- C. Chemical
- D. None of above
Explanation: Flagella is composed of protein flagellin.
Correct answer: Protein- A. Absence of membrane bound cell organelles
- B. Absence of nucleus
- C. Presence of 70S ribosomes
- D. All of these
Explanation: Prokaryotes lack membrane-bound organelles such as mitochondria. They do not contain a nucleus as there is no membrane separating the…
Correct answer: All of these- A. To give cells rigidity
- B. To give specific shape
- C. To protect from osmotic lysis
- D. All of the above
Explanation: The cell wall provides structural support to the cell, preventing it from collapsing under its internal pressure.
Correct answer: All of the above- A. Eubacteria
- B. Archaeobacteria
- C. Cyanobacteria
- D. None of above
Explanation: Eubacteria, also known as true bacteria or bacteria, are a major group of prokaryotic microorganisms.
Correct answer: Eubacteria- A. Diplococcus
- B. Tetrad
- C. Peritriehous
- D. Monotrichous
Explanation: A type of bacterial cell that is completely surrounded by flagella is called peritrichous.
Correct answer: Peritriehous