Microorganisms Friend And Foe - Worksheets
CBSE Worksheet-01 Class–VIII Science (Microorganisms : Friend and Foe) Low temperature prevents spoilage of food because it :- Retards microbial growth Inactivates enzymes Both a & b Removes water from food materials Which of the following is found to be present in curd? Lactobacillus Rhizobium Lactovirus Lactococcus In the given picture the microbe responsible for the spoilage is a :- Virus Protozoa Bacteria Fungus The microorganism used in preparation of bread is :- Yeast Adenovirus Penicillium Blue green algae Match the column :- Disease Transmission by a. Dengue i) Infected dog’s bite b. Hepatitis B ii) Contact c. Food poisoning iii) Contaminated water d. Rabies iv) Carrier Aedes mosquito bite e. Small Pox v) Contaminated food Fill in the blanks:- ______ are preserved by the use of oil and vinegar. ______ is the process of heat and cold treatment for preserving milk. ______ is a dangerous form of food poisoning. ______ is the oldest method of food preservation. Jellies, squashe...
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