MDCAT Biology Chapter 3 MCQ's Test With Answers

MDCAT Biology Chapter 3 MCQ's Test

Sr. # Questions Answers Choice
1 Chain of cells forming filaments in cyanobacteria is called Trichome Filaments Heterocyst Hormogones
2 The largest and most diverse group of photosynthetic bacteria Cyanobacteria Mycoplasma Archaeobacteria Green sulphur bacteria
3 Misuse of tetracycline and its related compounds cause Allergic reactions Deafness Discoloration of teeth All these
4 Misuse of Penicillin can cause Allergic reactions Deafness Discoloration of teeth All these
5 Misuse of streptomycin affects auditory nerve thus causing Allergic reactions Deafness Discoloration of teeth All these
6 Integrated disease management includes Using all methods to combat disease Participation of community Both a and b None of these
7 Procedure used to eliminate or reduce the possibility of infection is termed Antisepsis Immunization Vaccination Sterilization
8 Immunization with attenuated cultures of bacteria is called Antisepsis Vaccination Chemotherapy None of these
9 One of the followings was able to isolate bacterium responsible for chicken cholera in 1880's Louis Pasteur Edward Jenner Christian Gram Robert Koch
10 E.coli is an Aerobic bacteria Anaerobic bacteria Facultative bacteria Microaerohilic
11 Complexes of layer external to bacterial protoplasm is Capsule Cell envelope Slime Cell wall
12 The common pathogens of humans are Viruses Bacteria Fungi Cyanobacteria
13 Circular double stranded DNA molecules in addition to chromosomes in some bacteria Mesosomes Vectors Plasmid Chromatin body
14 Which of the following radiations is used for sterilization? Alpha rays Beta rays Gamma rays Ultraviolet rays
15 Destruction of all life forms is Immunization Vaccination Sterilization Chemoherpeutism
16 Chemical substances used on living tissues that inhibit growth of microorganisms are called Antiseptics Disinfectants Antibiotics Chemotherapeutic agents
17 Lipid absent in the membrane of bacteria Wax Sterals Phospholipids Acylglycerol
18 During which phase of reproduction death rate become equal to newly formed bacteria Lag Log Stationary All these
19 Gram positive or negative bacteria grouping is on the basis of their Capsule Cyst Cell wall Cell membrane
20 Which of the following is not an economic importance of bacteria? Production of antibiotics Spoilage of food and vegetables Able to decompose organic matter Use in biotechnology
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