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5000 Plus MCQs for Lab Technician and Technologists are designed to test the knowledge and proficiency of laboratory professionals who work in the field of clinical laboratory science. These questions cover a wide range of topics related to laboratory science, including anatomy, physiology, microbiology, chemistry, and hematology.

MCQs for Lab Technician

2301 to 2350 MCQs for Lab Technician and Technologist Exam Preparation

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Questions 2301 to 2350

Go to Mock Test Chapter 47
  1. T. pallidum was discovered by
    1. Robert Koch
    2. Schaudinn and Hoffman ✔
    3. Louis Pasteur
    4. Edward Jenner
  2. Neisseria gonorrhoeae was first described by
    1. Neisser in 1879
    2. Pasteur in 1878 ✔
    3. Robert Koch
    4. None of these
  3. Rh factor of the blood was discovered by scientist
    1. Louis Pasteur
    2. Landsteiner and Weiner ✔
    3. Janskey
    4. Moss
    5. None of these
  4. Trepanema pallidum was discovered by
    1. Schaudinn and Hoffman ✔
    2. Louis Pasteur
    3. Burgey
    4. Laennec
    5. None of these
  5. Fluroscent substance used in fluorescent microscopy are
    1. Quinine sulphate
    2. Auramine
    3. All of these ✔
    4. None of these
  6. Cold like symptoms are caused by which bacteria
    1. Pseudomonas
    2. E.coli
    3. Haemophilus influenza ✔
    4. Haemophilus streptococcus
  7. In Streptococcus fecalis, the conjugation takes place at
    1. Pili
    2. Cell membrane
    3. Cell wall ✔
    4. Flagella
  8. The infected mad dogs may contain
    1. Nergi bodies
    2. Niagri bodies
    3. Negri bodies ✔
    4. Neisser bodies
  9. What disease the Nesser will produce?
    1. Mumps
    2. Rubella
    3. Polio
    4. Measles ✔
  10. Rancidity in spoiled foods is due to
    1. Lipolytic organisms ✔
    2. Proteolytic organisms
    3. Toxigenic microbes
    4. Saccharolytic microbes
  11. The Baterium that is most commonly used in genetic engineering is
    1. Escherichia ✔
    2. Klebsiella
    3. Proteius
    4. Serratia
  12. The functions of plasmid are
    1. DNA replication
    2. Protein synthesis
    3. Cell wall synthesis
    4. None of the above ✔
  13. Mycoplasmas are bacterial cells that
    1. Fail to reproduce on artificial meida
    2. Have a rigid cell wall
    3. Are resistant to penicillin ✔
    4. Stain well with Gram’s stain
  14. The etiologic agent of botulism is a
    1. Neurotoxin ✔
    2. Endotoxin
    3. Enterotoxin
    4. All of the above
  15. The bacterial cells are at their metabolic peak during
    1. Lag phase
    2. Log ✔
    3. Stationary
    4. Decline
  16. Protein particles which can infect are called
    1. Virons
    2. Prions ✔
    3. Nucleoida
    4. None of these
  17. In most of purple bacteria, the light harvesting centers are
    1. B 850 & Fe-S
    2. B 850 & B 875 ✔
    3. B 845 & B 875
    4. B 850 & B830
  18. Endotoxin produced by gramnegative bacteria is present in
    1. Peptidoglycan
    2. Lippolysacharide ✔
    3. Theichoic acid
    4. Inner membrane
  19. Which one of the following was Gramnegative, chemolithotrophic bacteria?
    1. Siderococcus
    2. E.coli ✔
    3. Spirellum
    4. Mycoplasms
  20. The mode of reproduction which occurs in mycoplasma is
    1. Budding
    2. Bursting
    3. Binary fission ✔
    4. Binary fusion
  21. Which one of the following is about Herpes viruses?
    1. Icosahedral, with envelope, ds DNA ✔
    2. Polyhedral with envelope, ds DNA
    3. RNA, helical with envelope
    4. ds DNA, brick shape
  22. Which one of the following produce typical fried egg appearance colonies on solid media?
    1. Mycobacteria
    2. Mycoplasts
    3. Mycoplasms ✔
    4. Bacteroides
  23. An organism that is osmophilic and has a specific requirements for sodium chloride resembles
    1. Halophile ✔
    2. Basophile
    3. Barophile
    4. Xerophile
  24. A population of cells derived from a single cell are called
    1. Monclonal cells
    2. Clones ✔
    3. Protoplasts
    4. Sub culture
  25. Hetrolactic acid bacteria produce
    1. Lactic acid only
    2. Lactic acid + H2O + CO2
    3. Lactic acid + CO2
    4. Lactic acid + alchohol + CO2 ✔
  1. In which of the follwing microorganism, conjunction tube was not produced during conjunction process?
    1. Thiobaillus thiooxidence ✔
    2. T. ferroxidance
    3. Tetrahymena thermophila
    4. Cryptaporiclium
  2. Which of the following is most similar to Rickettsia and Chlamydia?
    1. Bdellovibrio
    2. Clostridium
    3. Mycobacterium ✔
    4. Mycoldaima
  3. How would you distinguish pseudomonas species from E-cloi?
    1. Gram staining
    2. Morphology
    3. Glucose fermentation Vs Respiration ✔
    4. All of the above
  4. Which of the following is pathogenic to humans?
    1. Spirogyra
    2. Cephaleuros
    3. Prototheca ✔
    4. Both b and c
  5. Tumer inducing plasmids are extensively used in production of
    1. Avirulent phases
    2. Single cell proteins
    3. Transgenic plants ✔
    4. Nitrogen fixing bacteria
  6. The viruses that live as parasites on bacteria are
    1. Fungi
    2. Commensels
    3. Bacteriophages ✔
    4. None of these
  7. The anthrax disease is most frequently infected from
    1. Cattle
    2. Sheeps
    3. Rats
    4. Both a and b ✔
  8. The colonies produced by Pseudomonas on Mac Conkey’s medium are
    1. Purple colored
    2. Pink colored
    3. Pale colored ✔
    4. Green colored
  9. Staining material of gram positive bacterium is
    1. Fast green
    2. Haematoxylon
    3. Crystal violet ✔
    4. Safranin
  10. The pigment present in red algae is
    1. Rhodochrome
    2. Fucoxanthin
    3. Chlorophyll only
    4. Chlorophyll + phycobilin ✔
  11. During mitosis, synapsis occurs in the phase called
    1. Telophase
    2. Anaphase
    3. Prophase ✔
    4. None of the above
  12. Which of the following change is a transition?
    1. ATGC’!ATCC
    2. ATGC’!ATGG
    3. ATGC’!AGGC
    4. None of these ✔
  13. Citrus canker is caused by
    1. Phytomonas ✔
    2. Salmonella
    3. Lactobacillus
    4. Hay bacillus
  14. Bacter ia that are respons ib le for fermentation of dairy milk are
    1. Azetobacter
    2. Rhizobium
    3. Lactobacillus ✔
    4. Hay bacillus
  15. The fungal disease that affect the internal organs and spread through the body are called
    1. Mycoses
    2. Systemic mycoses ✔
    3. Mycotoxicosis
    4. Superficial mycoses
  16. The staining technique used to stain the metachromatic granules of Corynebacterium
    1. Giemsa stain
    2. Alberts stain ✔
    3. Acid fast staining
    4. Both a and b
  17. The orderly increase in all components of protoplasm of a cell is called
    1. Reproduction
    2. Cell division
    3. Growth ✔
    4. All of the above
  18. The causative organism of cholera, i.e., Vibrio show the movement called
    1. Gliding movement
    2. Darting movement ✔
    3. Pseudopoidal movement
    4. None of these
  19. Erythrocytes will get its ATP energy only by
    1. Glycolysis ✔
    2. Kreb’s cycle
    3. Electron Transport
    4. HMP shunt
  20. Virus will contain
    1. Cell membrane
    2. Cell wall
    3. DNA
    4. DNA or RNA ✔
  21. The bacterial pili mainly contain
    1. Carbohydrates
    2. Lipids
    3. Proteins ✔
    4. Minerals
  22. The wonder drug of second world war is produced by
    1. Algae
    2. Fungi ✔
    3. Bacteria
    4. Plants
  23. Role of bacteria in carbon cycle is
    1. Photosynthesis
    2. Chemosynthesis
    3. Breakdown of organic compounds ✔
    4. Assimilation of nitrogen compounds
  24. Centromere is that part of chromosome where
    1. Nucleoli are formed
    2. Crossing over takes places ✔
    3. Chromatids are attached
    4. Naking occurs
  25. Somatic cell of the adult body are haploid in many except
    1. Vertebrates
    2. Invertebrates
    3. Fungi ✔
    4. Vascular plants
Go to Mock Test Chapter 47
<< Chapter 46
Chapter 48 >>

The questions are typically designed to assess the technical skills and knowledge required for the laboratory profession, including the ability to analyze laboratory test results, perform laboratory procedures, and maintain laboratory equipment.

To prepare for these MCQs, candidates should have a thorough understanding of the key concepts and principles of laboratory science. They should also be familiar with common laboratory equipment and procedures, as well as laboratory safety protocols.

Candidates may also benefit from studying specific laboratory science textbooks or taking online courses that cover the material tested in the MCQs. Additionally, practicing sample MCQs and reviewing the answers can help candidates identify areas where they may need to improve their knowledge or skills.

Overall, the MCQs for lab technologists are designed to be challenging and comprehensive, requiring candidates to demonstrate a high level of proficiency in the field of laboratory science.

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