Free Kingdom Prokaryotae MCQs with Answers

• A. Glycogen
• B. Akinetes
• C. Phycobilins
• D. Jelly like mass with numerous filaments

Explanation: Cyanobacteria are a group of photosynthetic bacteria that possess various structures and forms.

• A. Cell wall
• B. Slime
• C. Chromatin bodies
• D. Mesosome

Explanation: The correct option is D) Mesosome. Mesosomes are usually found in bacteria.

• A. Deafness
• B. Death
• C. Allergic reactions
• D. Discoloration of teeth in young children

Explanation: Misuse of tetracycline and its related compounds can lead to the discoloration of teeth in young children.

• A. Streptococcus
• B. Sarcina
• C. Tetracoccus
• D. Staphylococcus

Explanation: When cocci are arranged irregularly, like clusters of grapes, the arrangement is called Staphylococcus.

• A. Cocci
• B. Vibrio
• C. Bacilli
• D. Spirochaete

Explanation: Bacilli is plural of bacillus which means rod shaped bacterium. Rod-shaped bacteria, also known as bacilli (singular: bacillus), are a…

• A. Diplobacillus
• B. Bacillus
• C. Streptobacillus
• D. Staphylobacillus

Explanation: It is a consequence of single division and daughter cells remain attached after division.

• A. Vibrio, curved or comma-shaped
• B. Spirochaete, curved or comma-shaped
• C. Spirillum, curved or comma-shaped
• D. Vibrio, Spirillum or Spirochaete shaped

Explanation: Spiral-shaped bacteria exist in three forms which are spirally coiled bacteria: Vibrio is a comma-shaped or curved bacterium.

• A. Attachment
• B. Fimbriae
• C. Sex pili
• D. Flagella

Explanation: Flagella are extremely thin hair like appendages, whereas pili are non-helical, filamentous appendages.

• A. Sarcina
• B. Tetrad
• C. Streptococcus
• D. Staphylococcus

Explanation: When cocci divides in three plane it forms cube of 8 cocci or sarcina. Sarcina is a genus of bacteria characterized by their distinctive…

• A. Cocci
• B. Bacilli
• C. Spirilli
• D. Repulsion

Explanation: Cocci bacteria, which are characterized by their spherical or ovoid shape, typically do not have flagella.

• A. Chemotropism
• B. Chemotaxis
• C. Locomotion
• D. Repulsion

Explanation: Chemotaxis is the biological process by which cells, typically microorganisms such as bacteria, move in response to chemical gradients in…

• A. Spirochaete
• B. Pseudomonas
• C. Spirillum
• D. Rhizobium

Explanation: Spirillum is a type of bacterium characterized by its spiral or helical shape. Spirilla are often elongated and have a rigid structure.

• A. Monotrichous
• B. Lophotrichous
• C. Amphitrichous
• D. Peritrichous

Explanation: "Monotrichous" is a term used to describe the arrangement of flagella on a bacterial cell.

• A. Flagella
• B. Pilli
• C. Trichomes
• D. Plasmids

Explanation: These are hollow, nonhelical, filamentous appendages. Pili are smaller than flagella and are not involved in motility.

• A. Nuclear body
• B. Chromatin body
• C. Nuclear region
• D. Nucleus

Explanation: The nucleus is a membrane-bound organelle found in eukaryotic cells. It is often referred to as the "control center" of the cell since it…

• A. Spirochetes
• B. Diplococci
• C. Streptococci
• D. Cocci

Explanation: Spirochetes are a group of bacteria that are characterized by their spiral shape.

• A. Flagella
• B. Plasmid
• C. Mesosome
• D. Pili

Explanation: Pili (singular: pilus) are hair-like appendages on the surface of bacteria.

• A. 100
• B. 200
• C. 300
• D. 400

Explanation: This is a fact that you will need to remember that Certain electromagnetic radiations below 300 nm are effective in killing of…

• A. Cell membrane
• B. Nucleoid
• C. Ribosomes
• D. Capsule

Explanation: The capsule is a slimy, protective layer that surrounds some bacterial cells.

• A. Paramecium
• B. Amoeba
• C. Plasmodium
• D. Lactobacillus

Explanation: Lactobacillus is a genus of bacteria, and bacteria do not have nuclei in the same way that eukaryotic cells (such as protists) do.