Here is the important medical lab technician exam questions and answers pdf.
Question 1: Which of the following is NOT a prokaryotic organism?
A) Bacteria
B) Archaea
C) Fungi
D) Cyanobacteria
Answer : C) Fungi
Question 2: Which of the following is an example of a Gram-negative bacterium?
A) Staphylococcus aureus
B) Escherichia coli
C) Clostridium perfringens
D) Streptococcus pyogenes
Answer : B) Escherichia coli
Question 3: What is the primary function of the ribosomes in a bacterial cell?
A) DNA replication
B) Protein synthesis
C) ATP production
D) Lipid synthesis
Answer : B) Protein synthesis
Question : Which of the following microorganisms is responsible for causing tuberculosis?
A) Streptococcus pneumoniae
B) Mycobacterium tuberculosis
C) Salmonella enterica
D) Vibrio cholerae
Answer : B) Mycobacterium tuberculosis
Question 5: What is the name of the process by which bacteria exchange genetic material through direct cell-to-cell contact?
A) Binary fission
B) Conjugation
C) Sporulation
D) Transformation
Answer : B) Conjugation
Question 6: Which of the following is a viral disease?
A) Cholera
B) Influenza
C) Malaria
D) Tuberculosis
Answer : B) Influenza
Question 7: What is the primary role of antibiotics in treating bacterial infections?
A) Boost the immune system
B) Kill or inhibit the growth of bacteria
C) Enhance bacterial replication
D) Prevent viral infections
Answer : B) Kill or inhibit the growth of bacteria
Question 8: What is the outermost layer of a bacterial cell called, which is often involved in protection and adhesion?
A) Capsule
B) Nucleus
C) Cell membrane
D) Cytoplasm
Answer : A) Capsule
Question 9: Which of the following is a vector for transmitting diseases like malaria and dengue fever?
A) Mosquito
B) Flea
C) Tick
D) Fly
Answer : A) Mosquito
Question 10: What is the primary mode of action of antifungal medications?
A) Inhibition of cell wall synthesis
B) Inhibition of protein synthesis
C) Disruption of the bacterial cell membrane
D) Inhibition of DNA replication
Answer : A) Inhibition of cell wall synthesis
Question 11: What is the primary function of the Golgi apparatus in eukaryotic cells?
A) Protein synthesis
B) Lipid synthesis
C) Packaging and modification of proteins
D) DNA replication
Answer: C) Packaging and modification of proteins
Question 12: Which of the following is a common sexually transmitted bacterial infection?
A) Influenza
B) Tuberculosis
C) Gonorrhea
D) Malaria
Answer : C) Gonorrhea
Question 13: What is the term for a dormant, resistant form of bacteria that can survive harsh conditions?
A) Flagellum
B) Endospore
C) Capsule
D) Pilus
Answer : B) Endospore
Question 14: Which microorganism is responsible for causing yeast infections in humans?
A) Escherichia coli
B) Candida albicans
C) Mycobacterium tuberculosis
D) Streptococcus pyogenes
Answer : B) Candida albicans
Question 15: What is the primary role of the Krebs cycle (Citric Acid Cycle) in cellular respiration?
A) Production of ATP
B) Glycolysis
C) Oxidation of glucose
D) Synthesis of DNA
Answer : A) Production of ATP
Question 16: Which of the following is a viral disease that affects the liver and can lead to chronic infection and liver damage?
A) Tuberculosis
B) Hepatitis
C) Cholera
D) Malaria
Answer : B) Hepatitis
Question 17: What is the mode of transmission for the human immunodeficiency virus (HIV)?
A) Airborne droplets
B) Ingestion of contaminated food
C) Sexual contact and exposure to infected blood
D) Mosquito bites
Answer : C) Sexual contact and exposure to infected blood
Question 18: Which process allows bacteria to exchange genetic material by taking up free DNA from their environment?
A) Binary fission
B) Conjugation
C) Transformation
D) Transduction
Answer : C) Transformation
Question 19: What is the primary function of the mitochondria in eukaryotic cells?
A) Photosynthesis
B) Cellular respiration and ATP production
C) Protein synthesis
D) DNA replication
Answer : B) Cellular respiration and ATP production
20. CAMP test used to identify the…
a. Staph aureus b. Streptococcus epidermis. Neisseria
21. Which of the following bacteria shows Voges Proskauer (Acetoin production) test positive?
a. Klebsiella b. E.coli c. Streptococcus
22. What is the normal color of the Methyl red indicator in the methyl red stain, when the test is negative?
a. Yellow b. Green c. Red
23. In order to create suitable hardness and consistency in tissue processing. The tissues are infiltrated by the
a. paraffin wax, b. Formalin c. both
24. The Phenylalanine deaminase test is used to differentiate the
a. proteus b. Providencia c. both
25. What is the purpose of a Standard Operating Procedure (SOP) in medical laboratory technology?
A. To ensure that testing is done accurately and consistently B. To save time for laboratory staff. C. To reduce costs associated with laboratory testing D. To prioritize certain tests over others
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26. Which of the following is an example of a laboratory safety SOP?
A. How to clean laboratory equipment B. How to perform a blood test C. How to order laboratory supplies D. How to communicate test results to patients.
27. Which of the following is not a potential consequence of failing to follow an SOP in a medical laboratory?
A. Inaccurate test results B. Loss of laboratory funding C. Injuries to laboratory staff D. Legal liability for the laboratory.
28. When should laboratory staff refer to an SOP?
A. Only when they are uncertain of a procedure B. Only when they have not performed the procedure before C. Before every test D. Once a month