BIOCHEMISTRY, BIOMEDICINE & PHARMACEUTICS

40 plus questions - Multiple Choice Questions on Classification, Culture, and Identification of the microorganisms 1. Which of the following microorganism has the cocci cell shapes and sizes arranged usually in tetrad structures? a)  Streptococcus pneumoniae b)  Staphylococcus aureus c)  Chlamydia trachomatis d)  Neisseria meningitidis 2. What are the different growth morphology and cell structures used for the classification of fungi? Select all the correct answers: a) Yeast b) Mold c) Mycelia d) Protozoa 3. Which of the following media is formulated with additional nutrients to support the growth of fastidious or nutritionally demanding bacteria that may not grow well on basic media? a) Differential media b) Enriched media c) Nutrient agar (media) d) Selective media 4. Which of the following metabolic characteristic is a distinguishing characteristic and identification of colonies of  E. coli ? a) Hydrogen sulfide formation b) Indole Formation c) Lactose fe...

                                                MCQs on Urinary Tract Infection, UTI 1) Which of the following is the least common microorganism isolated from urinary tract infections? a) Escherichia coli     b) Streptococcus pyogenes     c) Proteus vulgaris d) Enterococcus faecalis 2) A higher percentage of women get UTIs compared to men, what are the possible risk factors for developing the infection.  Select all the correct answers ? a) Poor hygiene practices during the periods            b) The anatomy of the urinary system of the women         c) Change in the size of a uterus in pregnancy       d) Hormonal changes during menopause         3) Which of the following is Not the most common infection term used for UTI? a) Endometriosi...

                           Multiple Choice Question with answers on Chlamydia spp 1) Which of the following Chlamydia spp are human pathogens?  Select from all the options given below: a) Chlamydia pecorum b) Chlamydia psittaci c) Chlamydia trachomatis d) Chlamydia pnuemoniae 2) Which of the following is a common specimen used for the diagnosis of sexually transmitted chlamydial infections that occur in both men and women? a) Oral swab b) Cerebrospinal fluid c) Urine d) Skin biopsy 3) What type of methods are important laboratory approaches for the diagnosis of genital Chlamydia spp  infections?  Select all the correct answers: a) Specimen culture in McCoy cell tissue culture b) Direct fluorescent antibody and Enzyme-linked immunoassay c) Serological tests d) Nucleic acid amplification test 4) Chlamydia is one of the major pathogens that cause sexually transmitted diseases. What i...

                                 MCQs on Bacillus spp ( Bacillus anthracis )                                                    Figure: B. anthracis culture gram stain 1. What is the Gram stain appearance of Bacillus anthracis? a) Acid-fast b) Gram-positive     c) Gram-negative d) Gram-variable 2. What is a key distinctive feature of B. anthracis that allows it to survive adverse environmental conditions? a) Capsule formation b) Hemolysis c) Motility     d) Oxygen requirement 3. Which structure in B. anthracis plays a crucial role in evading the host immune system and is a virulence factor? a) Capsule    b) Cell wall c) Endospores d) Flagella 4. .................................... laid the foundation for establishing a causative rel...

        MCQs on Bordetella spp, isolation and identification, diagnosis and treatment                                       Figure: Bordetella pertussis colonies 1. A six months old child is brought to the emergency department by her parents. She has been experiencing a severe cough for the past two weeks, which has worsened recently. Her parents are concerned about her difficulty breathing and episodes of coughing fits. The child appears to be in moderate distress. She has been experiencing paroxysms of coughing, followed by a "whooping" sound as she tries to inhale. During coughing fits, she becomes cyanotic (turns blue) due to the struggle for breath. Her parents report that she hasn't had her routine vaccinations, including the DPT (diphtheria, pertussis, tetanus) vaccine. Upon examination, the child has mild fever (101°F) and mild tachypnea (increased respiratory ra...

                       MCQs on Nocardia spp and Streptomyces spp 1. What is the primary habitat of Nocardia   spp and Streptomyces spp? a) Air b) Human skin c) Human gut flora d) Soil    2. Nocardia spp. are typically: a) Facultative anaerobes b) Microaerophilic c) Strict anaerobes d) Strict aerobes     3. A 48-year-old male comes to the emergency department with a two-week history of worsening respiratory symptoms. He reports a persistent cough with yellow-green sputum production, shortness of breath, and chest pain. He also mentions fatigue and unintentional weight loss during this period.  Upon examination, the patient appears unwell and is febrile with a temperature of 101.5°F. His respiratory rate is increased, with decreased breath sounds on the right side of the chest. A chest X-ray reveals a large right lower lobe infiltrate with cavitation. Blood tests show an elevated white blood c...

          MCQs on Probiotics and Prebiotics, components of microbiology What is the primary focus of microbiology in the context of probiotics and prebiotics? a. Developing new antibiotics b. Investigating the role of vitamins in digestion c. Studying harmful bacteria in the gut d. Understanding the interactions between microorganisms and the host What are probiotics? a. Nutrients essential for digestion b. Harmful microorganisms in the gut c. Live microorganisms that provide health benefits      d. Non-digestible fibers in the diet Which of the following foods is a good source of probiotics? a. Apples b. Chicken breast c. Whole wheat bread d. Yogurt Prebiotics are best described as: a. Foods that nourish beneficial gut bacteria b. Digestive enzymes c. Harmful bacteria in the gut d. Probiotic supplements What is the primary role of prebiotics in the gut? a. Killing harmful bacteria b. Nourishing beneficial gut bacteria c. Providing energy for the...

                    Multiple choice questions on Microorganisms related to Sexually transmitted                                    diseases (STD) 1. Which of the following infection are the most common STDs / STIs worldwide? Select all the correct answers: a) Gonorrhea b) Chlamydiasis c) Syphilis d) Giardiasis       e) HIV infection 2. What are the common signs and symptoms of early or "primary syphilis" infection? a) Painful chancre, sore in the face b) High-grade fever with body aches c) Painless chancre, sore in the genital or mouth     d) Bullous pemphigoid infecting the limbs 3. Which of the following drug, also considered a last line drug for treatment has shown resistance to gonorrhea in recent years? a) Gentamycin b) Ceftriaxone    c) Hydroxychloroquine d) Sulfonamides 4) Which of the following ty...