Viruses and Bacteria Assignment # Viruses Directions: Fill in the blank 1. Viruses are __________ particles that cause diseases and infections. 2. Viruses cannot make new viruses by themselves as they are non-living. In order for viruses to replicate they need a _________. Virus Host Cell 3. Examples of viruses include: ____________, _____________ and _____________. 4. You can get a virus from _______________, ______________ and _____________. Bacteria Directions: Fill in the blank 1. There are two kinds of bacteria, ________________ and ________________. Archaebacteria re found in ________________________, while eubacteria are found in _________________________. 2. Bacteria are ____________________ which reproduce asexually. 3. Viruses are non-living, and bacteria are ________. 4. Only bacteria with a ____________ can cause disease. Classification/Naming of Bacteria -Bacteria are classified based on shape, growth pattern and whether or not they need oxygen. 1. Shapes: 3. Need for oxygen Cocci-spheres Aerobic-need oxygen Anaerobic-don’t need oxygen Bacilli-rods Spirilli-spirals 2. Growth Patterns: Diplo-a pair OO O OO Staphylo-grape cluster OOO Strepto-long chain OOOOOO -Bacteria are named using a combination of growth pattern and shape: Example: “diplococci” - “streptobacilli”- Directions: Name/classify the bacteria below. 1. Write down the correct bacteria shape next to each picture: 2. Name the bacteria shapes below; remember arrangement (diplo, staphylo, strepto) comes before shape (cocci, bacilli, spirilli). A. =_________________ B. =_________________ C. =_________________ D. =_________________ E. =_________________ F. =_________________ G. =_________________ H. =_________________ I. =_________________ 3. Draw pictures of each bacterium I name: A. Diplococci= B. Diplobacilli= C. Streptospirilli= D. Staphylococci= E. Staphylospirilli= F. Streptobacilli= G. Streptococci= H. Diplospirilli= I. Staphylobacilli= 4. Match the description with the kind of bacteria: A. Aerobic, rod shaped pairs of bacteria 1. Streptococci-needs oxygen B. Anaerobic, long chains of spirals 2. Streptospirilli-doesn’t need oxygen C. Aerobic, long chains of spheres 3. Diplobacilli-needs oxygen 5. Antibiotics are used to kill bacteria. Can antibiotics kill viruses? Explain your answer.
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