MICROBIOLOGY-2MARKS-PART-2

NAME CONTRIBUTIONS OF ANTON VON LEEUWENHOEK:

  • Anton van Leeuwenhoek is another scientist who saw these cells soon after Hooke did. He made use of a microscope containing improved lenses that could magnify objects almost 300-fold, or 270x. Leeuwenhoek named these “animalcules,” which included protozoa and other unicellular organisms, like bacteria
  • Van Leeuwenhoek discovered “protozoa” – the single-celled organisms and he called them “animalcules”. He also improved the microscope and laid foundation for microbiology. He is often cited as the first microbiologist to study muscle fibers, bacteria, spermatozoa and blood flow in capillaries.

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MICROBIOLOGY: 5MARKS- PART 1 INTRODUCTION

1.Pasteurisation:

Pasteurisation is a process that slows down microbial growth in food. The aim of pasteurization is not to completely destroy all pathogenic micro-organisms in foods typically in milk & milk products. Just to reduce the number of viable pathogens so that they are unable to cause disease if the pasteurized product is stored as indicated and consumed before its expiry date.

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