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.
Last updated
533 questions · page 5 of 27
- A. Long chain of cells
- B. Planes of division
- C. Grape like clusture shape
- D. All of Above
Explanation: The coccus shape can appear in different arrangements depending upon the plane of division.
Correct answer: Planes of division- A. Gram-positive bacteria
- B. Gram-negative bacteria
- C. Both A and B
- D. Mycoplasmas
Explanation: Since Gram-positive bacteria have a single-layered wall, the movement of particles is easier than that of gram-negative bacteria, which…
Correct answer: Gram-positive bacteria- A. Disinfectant
- B. Sanitizer
- C. Antibiotic
- D. Antiseptics
Explanation: Antiseptics prevent the growth of disease-causing microorganisms.
Correct answer: Antiseptics- A. Facultative anaerobe
- B. Aerotolerant anaerobe
- C. Obligate aerobe
- D. Obligate anaerobe
Explanation: Obligate anaerobes are microorganisms killed by normal atmospheric concentrations of oxygen.
Correct answer: Obligate anaerobe- A. Cocci
- B. Filamentous
- C. Spiral
- D. Bacilli
Explanation: Option B is correct.On the basis of general shape, bacteria are classified into three categories.
Correct answer: Filamentous- A. Cytoplasmic matrix
- B. Cytoplasm
- C. Protoplast
- D. Cell Structure
Explanation: Protoplasm is referred to as the living part of the cell which includes the cytoplasm, nucleus, excluding the cell wall.
Correct answer: Protoplast- A. Protist
- B. Cyanobacteria
- C. Archaea
- D. Bacteria
Explanation: This question requires the candidate to make use of his/her analytical skills, by co-relating the concepts studied in Kingdom Prokaryote.
Correct answer: Archaea- A. Unicelularity
- B. Lack of membrane bound organelles
- C. A cell wall
- D. Examples are protists and fungi
Explanation: Option D is correct since fungi and protists are classified as eukaryotes. Prokaryotes and Eukaryotes are two different domains.
Correct answer: Examples are protists and fungi- A. Absence of locomotion
- B. Absence of nuclear envelope
- C. Absence of Protein
- D. Absence of nuclear material
Explanation: Prokaryotic life is characterized by the absence of a nucleus and membrane-bound organelles in the cells.
Correct answer: Absence of nuclear envelope- A. Robert Kuch's work
- B. Louis Pasteur's work
- C. Linneaus's work
- D. Ernst Hackel's work
Explanation: Louis Pasteur was the scientist who is credited with definitively proving the existence of microbes.
Correct answer: Louis Pasteur's work- A. Gram-negative bacteria
- B. Gram-positive bacteria
- C. Eubacteria
- D. Ancient bacteria
Explanation: Most of the ancient bacteria must have evolved to form modern bacteria or must have gone extinct, that is the reason for their small number.
Correct answer: Ancient bacteria- A. 0
- B. 1
- C. 3
- D. 2
Explanation: Gram negative and gram positive bacteria contain the same number of membrane bound organelles.
Correct answer: 0- A. Slime
- B. Cell wall
- C. Cell membrane
- D. Capsule
Explanation: Correct option: A slime is an extracellular layer that surrounds a bacterial cell and is composed of exopolysaccharide,glycoprotein and…
Correct answer: Slime- A. Archaebacteria
- B. Lactobacteria
- C. Eubacteria
- D. Anaerobic bacteria
Explanation: Archaebacteria are a distinct group of microorganisms that can survive in extreme environments and are among the oldest forms of life on…
Correct answer: Archaebacteria- A. All bacilli are gram-positive
- B. All bacilli are aerobic
- C. All bacilli are rod-shaped
- D. Both A and B
Explanation: Option D is correct because the question mentions to mention the incorrect options and both options A and B are incorrect about bacilli.
Correct answer: Both A and B- A. Eukarya
- B. Fungi
- C. Protista
- D. Archaea
Explanation: The most likely classification for a single-celled organism with a cell wall lacking a nucleus is Archaea.
Correct answer: Archaea- A. Functional
- B. Conjugation
- C. Normal
- D. Non-functional
Explanation: Coagulation refers to the formation of a solid clot. When bacteria are heated, the bacterial proteins coagulate and become…
Correct answer: Non-functional- A. All of these
- B. Moist heat
- C. Gamma rays
- D. Dry heat
Explanation: Sterilization refers to any process that removes, kills, or deactivates all forms of life and other biological agents like prions present…
Correct answer: All of these- A. Cocci
- B. Bacilli
- C. Streptococcus
- D. Spirochete
Explanation: Mainly, bacteria have three shapes: spherical, rod-shaped, and spiral. 1. Spherical: A coccus is a spherical bacteria.
Correct answer: Spirochete- A. Mycoplasma genitalum
- B. Staphylococcus aureus
- C. Streptococcus pneumoniae
- D. Eulopiscium fishelsoni
Explanation: Epulopiscium is a group of Gram-positive bacteria that have a symbiotic relationship with surgeonfish.
Correct answer: Eulopiscium fishelsoni