Free Kingdom Prokaryotae MCQs with Answers

• A. Ribosome
• B. Flagella
• C. Pili
• D. Cell wall

Explanation: Ribosomes are composed of RNA and proteins. Some may also be loosely attached to plasma membranes. They are protein factories.

• A. S
• B. O2
• C. CO2
• D. H

Explanation: Aerobic bacteria release CO2 in dead organic matter and if carbon present in dead matter is not release it would diminish all the CO2…

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

Explanation: Atrichous means bacteria are without any flagella.

• A. Cyanobacteria
• B. Nostoc
• C. Chlorella
• D. E. coli

Explanation: "The explanation for this question will be added soon!".

• A. Pili
• B. Flagella
• C. Cell wall
• D. Outer membrane

Explanation: They are primarily involved in a mating process between cells called conjugation process.

• A. Phycobilisome
• B. Mesosomes
• C. Spores
• D. Cytoplasmic granule

Explanation: "The explanation for this question will be added soon!".

• A. Long chain of cells
• B. Types of division
• C. Shape
• D. All of above

Explanation: Based on planes of division, the coccus shape can appear in several distinct arrangements: diplococcus, streptococcus, tetrad, sarcina…

• A. Cube of 8 cocci
• B. Square of 4 cocci
• C. Grape like cluster
• D. Triangular 6 cocci

Explanation: In cocci division, cocci bacteria divide in multiple planes to form distinct arrangements or clusters.

• A. 0.75-1.25 um
• B. 100-200 nm
• C. 0.1-600 um
• D. 500 um

Explanation: Spirochaets reach 500 micrometer in length.

• A. Bacterium
• B. Virus
• C. Parasite
• D. Protozoa

Explanation: Recently a huge bacterium has been discovered in the intestine of the brown surgeonish, Acanthurus nigrofuscus.

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

Explanation: Sarcinae is a genus of bacteria that are found in cuboidal arrangements of eight cocci.

• A. Streptobacillus
• B. Streptococci
• C. Both A and B
• D. None of these

Explanation: Streptobacillus and Streptococcus both contain chain of many cell.

• A. Bacillus anthracis
• B. Escherichia coli
• C. Spirillum minus
• D. Staphylococcus aureus

Explanation: Staphylococcus aureus possess spherical shape.

• A. Epulopiscium
• B. Pseudomonas aeruginosa
• C. Escherichia coli
• D. Streptococcus pneumoniae

Explanation: Epulopiscium fishelsoni is a bacterium that can be quite large, reaching up to 0.5 millimeters in length.

• A. 100
• B. 150
• C. 200
• D. 250

Explanation: Studies show that approximately 200 pathogenic bacteria are responsible for causing diseases in humans.

• A. Phosphate Deficiency
• B. Vitamin D Deficiency
• C. Calcium Deficiency
• D. Enamel Deficiency

Explanation: Calcium is one of the essential vitamins for your dental health. It helps teeth and bones remain strong and healthy, and it prevents jaw…

• A. UV rays
• B. IR rays
• C. Gamma rays
• D. X-rays

Explanation: Gamma ray is correct because due to the high penetrating power, short wavelength and high energy , gamma rays are ideal for the…

• A. Tetracycline
• B. Streptomycin
• C. Levofloxacin
• D. Erythromycin

Explanation: The prolonged adminstartion of streptomycin causes hearing loss or deafness in humans especially in the high frequency range.

• A. Nitrogen cycle
• B. Carbon cycle
• C. Urea cycle
• D. Water cycle

Explanation: Bacteria play many important roles in nitrogen cycle, while in carbon and urea cycle bacteria only have a single role.

• A. Dry heat
• B. Moist heat
• C. Gamma rays
• D. All of these

Explanation: This is correct as sterilization uses many techniques which involve the use of gamma rays in some , moist heat in others and dry heat in…