Quiz #1: Viruses.

Part I: Place the word described in the space to the right of the statement.

1. The process when the cell breaks open in the lyic cycle. 1.__________________

2. Composed of a protein coat and a DNA core.                2.__________________

3. A virus tht attacks bacteria.                                          3.__________________

4. A virus which incorporates itself into the DNA of a host. 4.__________________

5. This enzyme reverses transcription, transcribing RNA to DNA.   5.____________

6. Viruses that perform transcription backwards.                6.___________________

7. Viruses do not carry out respiration or other life proceses except.   7.___________

8. What cells containing proviruses said to be:                    8.___________________

9. An example of a disease caused by a virus.                    9.___________________

10. Virus is the Latin word for:                                        10.___________________
 

Part II: Describe what is happening in each of the drawings below.
 
 

1.___________________                            2.___________________
 
 
 
 

3.___________________                            4.____________________
 
 
 
 

                          5.______________________
 
 

Part III: Answer the questions below in complete sentences.

1. In your studies, two types of viral life cycles (lytic and lysogenic) were covered. Chose one of the cycles. Name the various stages of the cycle and briefly describe what hapens at each stage.
 
 
 
 
 
 
 
 
 

2. Briefly describe two differences and two similarities of the lytic and lysogenic cycles.
 
 
 
 
 
 
 
 
 

Extra Credit: In which kingdom are viruses classified? Please explain your answer.
 
 

Quiz #2: Bacteria and Protists.

Part A: Match the definition in Column A with the correct term in Column B.

                    Column A                                                 Coulmn B

____1. Binary Fission.                                                a. pseudopodium

____2. Early stage of slime molds.                               b. basidium

____3. Protective state that helps bacteria survive         c. plasmodium
           unfavorable conditions.

____4. Type of organism that lives                               d. mutualism
            in or on another organism.

____5. Symbiotic relationship between                          e. endospore
           two organisms beneficial to both.

____6. Bacterium that feeds on dead organisms              f. parasite
           or organic wastes.

____7. Part of plasma membrane used by amoebe          g. asexual reproduction
           to move and feed.

____8. Bacteria are classified in the kingdom.                 h. saprophyte

                                                                                   i. Monera
 

Part B: Determine whether the characteristics refer to proists, monerans, or both by placing a check mark in the correct column.
 

Table: Comparing Protists and Monerans.

Part C: Answer the questions in the spaces provided.

1. What are three groups of organisms that are classified as protists? ______________________________________________________
 

2. What type of environment do most protists live in?__________________________________________________________________
 

3. Where do many disease-causing protists live?_______________________________________________________________________
 
 
 

Part D: Using complete sentences, answer the following questions.

1. Describe three ways that bacteria are helpful?
 
 
 
 
 
 
 
 

2. You are examining a unicellular organism with an electron microscope. What clues would enable you to determine whether the organism is a bacterium.
 
 
 
 
 
 
 
 

Extra Credit: A bacterium reproduces every 10 minutes. How many bacteria will there be in 2 hours. Show the thinking process.
 

Part I: Complete each statement.

1. Monerans are ___________ because they have no true nucleus.

2. ______________ help protect the bacterium and help maintain osmotic balance between the bacterium and its environment.

3. A ____________ may surround some bacteria, further protecting a bacterium from its surroundings

4. The core of a virus consists of __________ or ___________, but never both.

5. Bacteriophages are viruses that infect ______________.

6. A ____________ consists of a phototroph and a fungus that are intimately related.

7. Ecologically, fungi serve as ____________.

8. The __________ are photsynthetic protists with cell walls composed of two halves that fit together like a petri dish.

9. The portion of viral DNA integrated into the host DNA is referred to as_____________.
 
 
 
 

Part II: Identify what is happening in each of the steps shown below.
 
 

Insert diagrams of stages of viral replication here.                                           1.__________________

                                                                                                                  2.__________________

                                                                                                                  3.__________________

                                                                                                                  4.__________________

                                                                                                                  5.__________________
 
 
 

Part III: Match the definition in Column A with the correct term in Column B.
 

              Column A                                                                         Column B

____1. Binary Fission                                                                    a. Lytic cycle

____ 2. Type of virus that transcribes RNA into DNA.                      b. Pseudopodium

____3. Bacterium that feeds on dead organisms                               c. Provirus
           or organic wastes.

____4. Early stage of slime molds.                                                  d. Mycelium

____5. Structure in which the sexual spores                                     e. Retrovirus
           of club fungi are formed.

____6. Protective state that helps bacteria survive                             f. Basidium
           unfavorable conditions.

____7. Filament out of which most fungi are made.                           g. Plasmodium

____8. Type of organism that lives                                                   h. Mutualism
           in or on another organism.

____9. Symbiotic relationship between                                              i. Endospore
           two organisms beneficial to both.

____10. Mat of filaments in a fungus.                                                j. Endospore

____11. Part of plasma membrane used by amoebae                          k. Hypha
             to move and feed.

____12. Type of viral DNA that integrates into                                   l. Rhizoid
             the chromosome of a host cell.

____13. Filament anchoring a fungus to a food source.                       m. Parasite

____14. Process by which a virus uses a host                                     n. Asexual Reproduction
             cell's metabolism to reproduce itself.
 
 

Part IV: Short Answer. Please anser the following in complete sentences.
 

1. Why are viruses often looked upon as being the threshold between life and non-life? What characteristics does a virus share with a living cell? What characteristics of life are lacking in a virus?
 
 
 
 
 
 

2. What are the distinguishing features (general characteristics) of fungi?
 
 
 
 
 

3. What are the characteristics of a typical protist (general characteristics of protists)? Why are protists so difficult to characterize?
 
 
 
 
 

4. Why are bacteria important to all living things?
 
 
 
 
 
 

Part V: Essay Questions. Answer the following questions in complete sentences.
 

1. In your studies, you learned of two types of viral cycles (lysogenic and lytic). Compare and contrast the lytic and lysogenic cycles. (If you wish, you may use diagrams to aid you in your answer.)
 
 
 
 
 
 
 
 
 
 
 
 

2. In your studies, you learned that the Kingdom Protista is made up of three groups of organsims: (1) Plant-like protists (or Algae), (2) Animal-like protists (or Protozoans) and (3) Fungus-like protists. Please provide the general characteristics of each group and also provide an example of an organism found in each group. (If you wish, you may use diagrams as an aid in your answer.)
 
 
 

                                                                         Rubric for Oral Report:

                                                                                                                 Possible               Earned

Answer to Questions
(Parasites of Humans Sheet)                                                                          30 points                ______
 

Oral Presentation: 40 points total.
                           Stayed within time limit.                                                      10 points               ______
                           Quality of information conveyed                                          20 points                ______
                           Cogent/Clear presentation.                                                    5 points                ______
                           Quality of response to questions.                                           5 points                ______
 

Visual Aid: 20 points total
(Overhead, model, poster)
                           Quality of Visual Aid.                                                          15 points               ______
                           Effective use of Visual Aid in presentation                              5 points                ______
 
 

Handout: 10 points total.
                            Outline/Handout provided.                                                   5 points                _______
                            Appearance/Clarity/Quality of information conveyed.             5 points                ______
 
 
 

                                                           Total Points Earned:__________

                                                             Total Possible Points:__________