SBI3U1Name: ________________________

HELPFUL BACTERIA MICROVIEWER

Examine each slide and study the description in the text folder. After studying each slide and the printed text, answer the questions for that slide.

Introduction

  1. List 3 ways in which bacteria are helpful:
    __________________________________________________________
    __________________________________________________________
    __________________________________________________________

  2. What is a culture? ___________________________________________________

Slide 1: Bacteria of Decay

  1. Where do decay bacteria live? ______________________________

  2. Plants need _____________________ and ______________________ from the soil.

  3. Where does the soil get minerals from? _______________________________ and _________________________

  4. Bacteria break down or ______________________ dead organisms.

Slide 2: Bacteria of Fermentation

  1. These bacteria help break down food in the ______________________________

  2. Why would a company such as "Bright's" need this bacteria? ____________________________

Slide 3: Nitrogen Fixing Bacteria in the Soil

  1. Green plants need ________________________ to grow.

  2. These bacteria take _____________________ from the air and convert it into ______________________.

  3. Where are these bacteria found? _______________________________

Slide 4: Nitrogen Fixing Bacteria in a Nodule

  1. Describe a nodule: ______________________________________________________________

  2. List 3 plants with nodules: _________________________, ___________________________, _____________________.

  3. How do these bacteria save farmers money? _____________________________________________

Slide 5: Nitrogen Fixing Bacteria in the Roots

  1. Explain the partnership that exists between a legume and these bacteria:
    _____________________________________________________________________________

Slide 6: Vinegar Bacteria

  1. What is the process called when bacteria convert sugar into vinegar? ______________________________

  2. What is the chemical name for vinegar? ______________________________

Slide 7: Cheese Bacteria

  1. Bacteria can affect the _______________________ and _______________________ of cheese.

Slide 8: Sour Milk Bacteria

  1. What shape do these bacteria have? ______________________________

  2. Name one dairy product in which these bacteria are found: ______________________