Back to all articlesClass 9 | Maharashtra Board | Quiz + Flash CardsQuiz + FlashcardsClass 9 | Useful and Harmful Microbes 8 March 2024 EasyLearningFlash Card Bird flu (H7N9 ) and swine flu (H1 N1 ) are caused by............ virus1/30Molasses is fermented with the help of yeast called ......... Saccharomyces2/30Fungi release ............ into the food, making the food poisonous. mycotoxins3/30Find the odd man out: Root rot, rust (tambere), rubella, mozaic rubellaQuestion Explanation:Rubella. It is a disease of humans, whereas the rest are diseases of plants. 4/30Antibiotic penicillin was discovered by........ Alexander Fleming5/30Bacteria found in the root nodules of leguminous plants are ............. . Rhizobium6/30........ can grow and reproduce only in living cells. Viruses7/30Lactobacilli kill the harmful bacteria like ............. present in the alimentary canal. Clostridium8/30................ is a broad-spectrum antibiotic. Amoxicillin9/30During fermentation, yeast cells convert carbohydrates into ........... alcohol and carbon dioxide10/30The ............. destroys harmful microbes present in the milk. low pH11/30Find the odd man out: Ampicillin, Amoxycillin, Penicillin, Tetracycline. PenicillinQuestion Explanation:Penicillin. It is a narrow-spectrum antibiotic, whereas others are broad-spectrum antibiotics. 12/30Find the odd man out: Tetracycline, Penicillin, Gentamycin, Erythromycin. TetracyclineQuestion Explanation:Tetracycline. It is a broad-spectrum antibiotic, whereas others are narrow-spectrum antibiotics. 13/30Find the odd man out: Pneumonia, Diphtheria, Chickenpox, Cholera. ChickenpoxQuestion Explanation:Chickenpox. It is caused by a virus, whereas others are caused by bacteria. 14/30Dengue is caused by.............. . mosquito bite15/30A yeast ................... is used to absorb the toxins released during the production of palm oil. Yarrowia lipolytica16/30........... can be prevented by vaccination. Chicken pox17/30........... is a narrow-spectrum antibiotic. Penicillin18/30Find the odd man out: AIDS, Hepatitis, Leprosy, Dengue. LeprosyQuestion Explanation:Leprosy. It is caused by bacteria, whereas the rest are caused by viruses. 19/30Antibiotics mainly act against .................. bacteria20/30Bacteria causes.............. cholera21/30Malaria is caused by............ . protozoa22/30The bacteria which spoil cooked food are............. Clostridium23/30AIDS is caused by............. . virus24/30............ proved that the anaerobic bacterium Clostridium botulinum, is responsible for food poisoning. Van Ermengem25/30Find the odd man out: Lactobacilli, Rhizobia, Yeast, Clostridia YeastQuestion Explanation:Yeast. It is a fungus, whereas the rest are bacteria. 26/30The Lactobacilli convert lactose, the sugar in the milk, into........ . lactic acid27/30Pneumonia is caused by ........... . bacteria28/30Yoghurt has a specific sour taste due to ............. . Lactic acid29/30Find the odd man out: Cholera, Leprosy, Pneumonia, Influenza. InfluenzaQuestion Explanation:Influenza. It is caused by a virus, whereas the rest are caused by bacteria. 30/30PrevNext Class 9 | Useful and Harmful Microbes NameEmailWhatsApp Mobile No. 1 / 30 Find the odd man out: Pneumonia, Diphtheria, Chickenpox, Cholera. Diphtheria Chickenpox Pneumonia Cholera Chickenpox. It is caused by a virus, whereas others are caused by bacteria. 2 / 30 Find the odd man out: Root rot, rust (tambere), rubella, mozaic mozaic rust (tambere) Root rot rubella Rubella. It is a disease of humans, whereas the rest are diseases of plants. 3 / 30 Molasses is fermented with the help of yeast called ……… Rhizobia Alcanivorax Saccharomyces Yarrowia lipolytica 4 / 30 Malaria is caused by………… . bacteria fungi protozoa virus 5 / 30 Antibiotic penicillin was discovered by…….. Alexander Fleming Van Ermengem Louis Pasteur Ida Bengston 6 / 30 Find the odd man out: AIDS, Hepatitis, Leprosy, Dengue. Hepatitis AIDS Leprosy Dengue Leprosy. It is caused by bacteria, whereas the rest are caused by viruses. 7 / 30 Pneumonia is caused by ……….. . virus bacteria protozoa fungi 8 / 30 AIDS is caused by…………. . fungi virus virus protozoa 9 / 30 Find the odd man out: Ampicillin, Amoxycillin, Penicillin, Tetracycline. Penicillin Tetracycline Amoxycillin Ampicillin Penicillin. It is a narrow-spectrum antibiotic, whereas others are broad-spectrum antibiotics. 10 / 30 Bird flu (H7N9 ) and swine flu (H1 N1 ) are caused by………… protozoa virus bacteria fungi 11 / 30 Find the odd man out: Tetracycline, Penicillin, Gentamycin, Erythromycin. Penicillin Erythromycin Gentamycin Tetracycline Tetracycline. It is a broad-spectrum antibiotic, whereas others are narrow-spectrum antibiotics. 12 / 30 ………… proved that the anaerobic bacterium Clostridium botulinum, is responsible for food poisoning. Louis Pasteur Van Ermengem Alexander Fleming Ida Bengston 13 / 30 Find the odd man out: Lactobacilli, Rhizobia, Yeast, Clostridia Yeast Clostridia Lactobacilli Rhizobia Yeast. It is a fungus, whereas the rest are bacteria. 14 / 30 ……….. is a narrow-spectrum antibiotic. Penicillin Ampicillin Amoxicillin Tetracyclin 15 / 30 Dengue is caused by………….. . mosquito bite contaminated water and food contact with infected person droplets spread in air 16 / 30 Fungi release ………… into the food, making the food poisonous. Antioxidants Probiotics Pesticides mycotoxins 17 / 30 The bacteria which spoil cooked food are…………. Saccharomyces Lactobacilli Clostridium Rhizobium 18 / 30 Lactobacilli kill the harmful bacteria like …………. present in the alimentary canal. Clostridium Saccharomyces Rhizobium Alcanivorax 19 / 30 ……….. can be prevented by vaccination. Chicken pox Leprosy AIDS Malaria 20 / 30 During fermentation, yeast cells convert carbohydrates into ……….. proteins and fats glucose and fructose alcohol and carbon dioxide fatty acids and amino acids 21 / 30 …….. can grow and reproduce only in living cells. Bacteria Protozoa Fungi Viruses 22 / 30 Find the odd man out: Cholera, Leprosy, Pneumonia, Influenza. Cholera Leprosy Influenza Pneumonia Influenza. It is caused by a virus, whereas the rest are caused by bacteria. 23 / 30 Antibiotics mainly act against ……………… fungi viruses algae bacteria 24 / 30 ……………. is a broad-spectrum antibiotic. Penicillin Gentamycin Amoxicillin Erythromycin 25 / 30 Yoghurt has a specific sour taste due to …………. . none of these Lactic acid citric acid Acetic acid 26 / 30 The Lactobacilli convert lactose, the sugar in the milk, into…….. . lactic acid citric acid acetic acid alcohol 27 / 30 The …………. destroys harmful microbes present in the milk. low pH none of these high pH neutral pH 28 / 30 Bacteria causes………….. malaria bird flu cholera scabies 29 / 30 A yeast ………………. is used to absorb the toxins released during the production of palm oil. Yarrowia lipolytica Penicillium Alcanivorax Saccharomyces cerevisiae 30 / 30 Bacteria found in the root nodules of leguminous plants are …………. . Penicillin Fungi Rhizobium Lactobacilli Your score is The average score is 62% 0% Restart quiz class 9 scienceeasylearning flashcardsUseful and Harmful Microbesshubham jhascienceKeep readingClass 9 | Information Communication TechnologyRead Class 9 | Environmental ManagementRead Class 9 | Energy Flow in an EcosystemRead