[Objective] MCQ's on Micro-Organism for Staff Nurses and Medical Exams

mcq on microoraganism for medical and nurses exams

1. When a bacterial cell and mitochondria are treated with cyanide and carbon monoxide what happens initially?
(A) Respiration inhibits
(B) Photosynthesis inhibits
(C) Protein synthesis inhibits
(D) No effect occurs

2. Which virus was first observed?
(A) Hepatitis Virus
(B) TMV
(C) Cauliflower mossaic virus
(D) None of these

3. The most important energy-yielding reaction for an aerobic organism is
(A) Glycosis
(B) EMP
(C) KDPG
(D) Both b and c

4. A disease that can be transmitted by an infectious agent from one individual to another was called
(A) Epidemic
(B) Pandemic
(C) Communicable
(D) Comma

5. Cell cycle regulated by
(A) Cyclins
(B) Cdks
(C) Cyclins and Cd ks
(D) None of these

6. The proteinaceous compound are converted to ammonia by
(A) Putrification bacteria
(B) Ammonifiaction bacteria
(C) Nitrification bacteria
(D) Denitrifying bacteria

7. A cell becomes flaccid when placed in a
(A) Isotonic solution
(B) Hypertonic solution
(C) Hypotonic solution
(D) Normal solution

8. A mutation causing a substitution of one amino acid is called
(A) Point mutation
(B) Silent mutation
(C) Missence mutation
(D) None of these

9. The formation spindle fibres in the process of cell division is prevented by
(A) Corchicine
(B) ATP
(C) Hydrazine
(D) All of these

10. Important class of respiratory enzymes:
(A) NAD
(B) Cytochromes
(C) ATPase
(D) Hydrolases