MDCAT Biology Chapter 3 MCQ's Test With Answers

MDCAT Biology Chapter 3 MCQ's Test

Sr. # Questions Answers Choice
1 Which is role of slime? Pathogenicity Phagocyte resistance Sticky nature Both a & b
2 Which is characteristic of capsule? It is gummy It's tightly held It is soluble shield Both a & b
3 Collective complexes of layers external to protoplasm are called Capsule Slime capsule Cell wall Cell envelope
4 Pilli are involved in which process? Mating Attachment Both a & b Movement
5 Which are hollow structures in bacteria? Pilli Flagella Both a & b Cilia
6 Bacteria without any flagella Atrichous Peritrichous Amphitrichous Monotrichous
7 A thick rigid spiral is called Vibrio Spirochete Spirillum None of these
8 When plane of division is random what will be produced in cocci? Diplococcus Streptococcus Sarcina None of these
9 When division of cell occurs in two planes in a coccus Streptococci Sarcina Tetrad Staphylococcus
10 If a coccus divides only in a single plane it forms Staphylococci Diplococci Streptococci Both b & c
11 Those bacteria which can exist in a variety of shapes Facultative Polymorphic Pleomorphic All of these
12 On the basis of general shape bacteria are classified into how many categories? 3 6 4 None
13 Huge bacterium has been found in which fish? Brown sturgeon Brown surgeon Brown dipnoi Osteolepiform
14 Streptococous and Staphylococcus are ________ to __________ micrometer in diameter 0.1-600 1.1-1.5 0.75-1.25 2.0-4.0
15 Some _________ occasionally reach the length of 500 micrometer Spirochetes Streptococci Diplococci Cocci
16 Diameter of E.coli is __________ to _______ micrometer 1.1-1.5 1.1-1.6 2.0-4.0 2.0-6.0
17 A pure culture will produce disease if inoculated into ______ host Alternative Weak Susceptible Definitive
18 These bacteria are smallest and without cell wall Mycoplasma spirochete pseudomonas E. coli
19 Pasteur discovered Fermentation Pasteurization Cause of disease All of these
20 Leeuwenhoek observed which of these to find out microbes? Saliva Vinegar Infusions All of these
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