MCQ Class 8 Science Chapter 2 Microorganisms: Friend and Foe Advertisement MCQ’s For All Chapters – Science Class 8th 1. The bread or dosa dough rises because of the action of:growth of yeast cellsheatgrindingnone of theseQuestion 1 of 102. Protozoan shaped like a slipper is:entamoebaamoebaparameciumeuglenaQuestion 2 of 103. The bacterium that turns milk into curd is:rhizobiumlactobacillusacetobacternone of theseQuestion 3 of 104. The bacteria was first observed by:Robert Koch Antony Von Leuwen HookLouis PasteurRobert HookeQuestion 4 of 105. Which of the following lives alone:bacteriaamoebafungiall of theseQuestion 5 of 106. The process of conversion of sugar into alcohol is known as:decompositionPasteurizationfermentationnone of theseQuestion 6 of 107. The bacterium living in the root nodules of leguminous plants is:rhizobiumacetobactorlactobacillusnone of theseQuestion 7 of 108. A group of micro organisms that have the characters of both living and non-living are:fungibacteriaprotozoavirusQuestion 8 of 109. The algae commonly used as fertilizers are called:spirogyrachlorellinblue-green algaenone of theseQuestion 9 of 1010. Which of the following drug is an antibiotic?insulinalcoholstreptomycinnone of theseQuestion 10 of 10 Loading...
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