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Exercises, Objective Type Questions, , A., , Multiple, , choice, , questions., , is, , carrier of communicable diseases, Housefy, (6) Mosquito, , common, , T h e most, , (a)Cockroach, a, , roanism considered, , to, , be between, , 3., , Yeast IS a, , of, , Sugar into, , Pathogen responsible, , for, , of milk, , helps, , (d) Proteins, , (c) Fats, , (b) Germs, i1s, causing protozoan, , (b) Female Anopheles mosquito, (d) Female Aedes mosquito, , c)Aale Aedes mosquito, Ycast, , (d) Plasmodium, , (c) Bacterium, , mosquito, (a) Male Anopheles, , S., , (d) Curding, , Fermentation, , destroys, , (a) Vitamins, , maiaria, , ), , causing malaria is, (b) Mould, , a) Bacteriophage, , Carrier of, , by yeast is, , (b) Sterilization, , Pasteurisation, , Pasteurisation, , alcohol, , (d) Protozoan, , (c)Bacteria, , by Fungus, , Conversion, , 6, , (d) Yeast, , Virus, , unicellular, , (a) Alga, a), , living and non-living is, , Plasmodium, , (a) Bacterium, , (d) Spider, , in the production of, b) Starch, , (c) Oxygen, , (b) Bacteria, , (c) lFung, , (d) Alcohol, , (a) Sugar, from, lodine is obtajned, (a) VirusCs, , T h e microorganism, , which has the, , ability, , (b) Rhizobium, , to, , fix atmospheric, , (d) Brown algae, nitrogen is, (d) Yeast, , (c) Chlorella, , (a) 1uglena, , B. Match the following:, , Column 'A, ., , Teeuwenhock, , 2., , 1lie Mletchnikoff, , 3., , L.ouis Pasteur, , Column 'B, a., , Phagocytes, , b., , Microscope, , C., , Penicillin, , d., , Vaccine, , .AlexanderFlemung, 5. Fdward Jenner, 6. Joseph Lister, , Mictooraen, , riend and Foe, , Pasteurisaion, , ., , Antiseptic

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Process of conversion of sugar into alcohol, , microscope. {no6, Study of microorganisms. t p m t, , Organisms which can be seen only under a, , Sive one word answer., 1., , 2., 3., , by yeast., Process of, , making an object free from germs., , 4, , Substance produced by an organism which, , poison tor other organism., , fruits do, , not rot, , in, , deep, , a, , summer?, , 3., , 6., 7., , 8., 9., , A, 1S, , ar, , 10. A, , How, , they, , 2. Wh, , disc, , Wh, , B. Long a., , heoritclOuestions, , 5., , is, , Short answer type questions., 1. Why, (a) Milk gets spoiled quickly in, , anomer?, , Ripened, , (b) Curdling of milk takes place when, little curd is added to it?, , (c)

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Disease causing microbes., , a, , disease E, , 6. Process of converting atmospher1C nitro, 7, , The smnallest known microbe., , into itrogenous compounds., , 3., ., , 9. A mediCine which has germs tor, , on, , bacteria., , is, in, a, injected, for, patient, cultivating, , antibodies., 10. A virus that feeds, , Stions