Bacteria and Viruses Review by pyw18970

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									Bacteria and Viruses
      Review
Virus Structure
            Label the structures
            and match them to
            their function (What
            they do)

          A. DNA or     1.   Helps the
             RNA             virus attach
          B. Protein    2.   Instructions
             Coat or         a virus
             Capsid          carries
                        3.   Protective
          C. Tail
                             covering
             SHeath
Bacteria Structure

               Label the
                  structures
               A. DNA
               B. Nucleus
               C. Cell Wall
               D. Flagellum
               E. Pili
      Lytic vs. Lysogenic Cycle
Match these letters to
   the correct steps
   and cycles
A. Lytic Cycle
B. Lysogenic Cycle
C. Bacteriophage attaches
   and inserts DNA
D. Host cell produces more
   bacteriophage
E. Bacteriophage DNA
   joins host cell DNA
F. Bacteriophage escape
   by bursting host cell
Classifying Bacteria
            Label the shapes
            A. Coccus
            B. Spirilla
            C. Bacillus
                Review Questions
1) Unlike Chemoautotrophs, Photoautotrophs get their energy…
a)   Directly from the sun        b) directly from inorganic
                                  molecules
c) Directly from food             d) directly from other
         molecules                          organisms


 2) The term that is not closely related to the others is
 a) Eubacteria                     b) bacteria
 c) Prokaryote                     d) Eukaryote
             Review Questions
3) Certain viruses called _______ viruses cause cancer in
    animals
a) Bacteriophage             b) oncogenic
c) AIDS                      c) Prophage




4) Bacteria help the environment by
a) Carrying out photosynthesis
b) Recycling nutrients
c) Nitrogen fixation
d) All of the above
           Review Questions
5) Bacteriophage infect

a) Other viruses          c) bacteria only
c) any available host     d) cells undergoing the lytic
                                  cycle
Answers…
        Virus Structure
                    Label the structures
                    and match them to
              B     their function (What
A
                    they do)

                  A. DNA or     1.   Helps the
                     RNA             virus attach
                  B. Protein    2.   Instructions
                     Coat or         a virus
                     Capsid          carries
                                3.   Protective
    C
                  C. Tail
                                     covering
                     SHeath
            Bacteria Structure
E                                       Label the
                        C                  structures
                                        A. DNA
                                        B. Nucleus
                                        C. Cell Wall
                                        D. Flagellum
                                        E. Pili
       D
                 A



    Bacteria don’t have a nucleus and flagella
    are longer than pili
      Lytic vs. Lysogenic Cycle
Match these letters to           C
   the correct steps
   and cycles
A. Lytic Cycle
B. Lysogenic Cycle                   A   B
C. Bacteriophage attaches
   and inserts DNA
                             F
D. Host cell produces more
   bacteriophage
E. Bacteriophage DNA                         E
                                 D
   joins host cell DNA
F. Bacteriophage escape
   by bursting host cell
        Classifying Bacteria
    A               Label the shapes
B                   A. Coccus
            C
                    B. Spirilla
                    C. Bacillus
               Review Questions
1) Unlike Chemoautotrophs, Photoautotrophs get their energy…
 a) Directly from the sun        b) directly from inorganic
                                 molecules
c) Directly from food             d) directly from other
         molecules                          organisms
Photo means light. Photoautorophs make their own energy from light.
How do chemoautotrophs get energy?

 2) The term that is not closely related to the others is
 a) Eubacteria                     b) bacteria
 c) Prokaryote                     d) Eukaryote
  A, B, and C are all bacteria. A Eukaryote
  has a true (eu) Nucleus (karyote). Bacteria
  don’t have a nucleus
             Review Questions
3) Certain viruses called _______ viruses cause cancer in
    animals
a) Bacteriophage             b) oncogenic
c) AIDS                      c) Prophage

To cause (gen) cancer (onco)=> onco-genic
4) Bacteria help the environment by
a) Carrying out photosynthesis
b) Recycling nutrients
                               Look back at your notes and
c) Nitrogen fixation
                               homework, these are listed
d) All of the above
           Review Questions
5) Bacteriophage infect

a) Other viruses          c) bacteria only
c) any available host     d) cells undergoing the lytic
                                  cycle
            Things to study
  (Look at your notes and homework)
 Structures of bacteria and viruses
 The difference between Lytic and
  Lysogenic cycle
 How to classify bacteria
  – What makes them different from others
 How do viruses get us sick
 How are bacteria useful

								
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