Multiple%20Choice

1
Chapter 24
Standardized Test Prep
Preview

• Multiple Choice
• Short Response
• Extended Response

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Multiple Choice
Standardized Test Prep
Chapter 24

• 1. What are viruses made of?
• A. enzymes and fats
• B. carbohydrates and ATP
• C. protein and nucleic acids
• D. mitochondria and lysosomes

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Multiple Choice, continued
Standardized Test Prep
Chapter 24

• 1. What are viruses made of?
• A. enzymes and fats
• B. carbohydrates and ATP
• C. protein and nucleic acids
• D. mitochondria and lysosomes

4
Multiple Choice, continued
Standardized Test Prep
Chapter 24

• 2. How do viroids differ from viruses?
• F. Viroids are larger in size.
• G. Viroids do not have a capsid.
• H. Viroids do not have nucleic acids.
• J. Viroids can cause disease in plants.

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Multiple Choice, continued
Standardized Test Prep
Chapter 24

• 2. How do viroids differ from viruses?
• F. Viroids are larger in size.
• G. Viroids do not have a capsid.
• H. Viroids do not have nucleic acids.
• J. Viroids can cause disease in plants.

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Multiple Choice, continued
Standardized Test Prep
Chapter 24

• 3. During which of the following processes does a
  phage kill its host?
• A. conjugation
• B. transcription
• C. the lytic cycle
• D. the lysogenic cycle

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Multiple Choice, continued
Standardized Test Prep
Chapter 24

• 3. During which of the following processes does a
  phage kill its host?
• A. conjugation
• B. transcription
• C. the lytic cycle
• D. the lysogenic cycle

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Multiple Choice, continued
Standardized Test Prep
Chapter 24

• 4. Which of the following is one reason why
  viruses are not considered living organisms?
• F. Viruses are able to grow.
• G. Viruses do not metabolize.
• H. Viruses can reproduce by splitting.
• J. Viruses are too small to be easily observed.

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Multiple Choice, continued
Standardized Test Prep
Chapter 24

• 4. Which of the following is one reason why
  viruses are not considered living organisms?
• F. Viruses are able to grow.
• G. Viruses do not metabolize.
• H. Viruses can reproduce by splitting.
• J. Viruses are too small to be easily observed.

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Multiple Choice, continued
Standardized Test Prep
Chapter 24

• Use the figure below to answer questions 5 - 6.

• 5. Which of the following does the diagram
  represent?
• A. a virus
• B. a prion
• C. a viroid
• D. a bacterium

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Multiple Choice, continued
Standardized Test Prep
Chapter 24

• Use the figure below to answer questions 5 - 6.

• 5. Which of the following does the diagram
  represent?
• A. a virus
• B. a prion
• C. a viroid
• D. a bacterium

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Multiple Choice, continued
Standardized Test Prep
Chapter 24

• Use the figure below to answer questions 5 - 6.

• 6. To which of the following is label X pointing?
• F. envelope
• G. nucleic acid
• H. protein coat
• J. cell membrane

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Multiple Choice, continued
Standardized Test Prep
Chapter 24

• Use the figure below to answer questions 5 - 6.

• 6. To which of the following is label X pointing?
• F. envelope
• G. nucleic acid
• H. protein coat
• J. cell membrane

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Multiple Choice, continued
Standardized Test Prep
Chapter 24

• Complete the following analogy
• 7. skin person capsid
• A. virus
• B. insect
• C. fungus
• D. bacterium

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Multiple Choice, continued
Standardized Test Prep
Chapter 24

• Complete the following analogy
• 7. skin person capsid
• A. virus
• B. insect
• C. fungus
• D. bacterium

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Multiple Choice, continued
Standardized Test Prep
Chapter 24

• Use the figure below to answer question 8. The
  figure below represents the human
  immunodeficiency virus.

• 8. The structure labeled Y represents which of
  the following?
• F. capsid
• G. envelope
• H. RNA genome
• J. reverse transcriptase

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Multiple Choice, continued
Standardized Test Prep
Chapter 24

• Use the figure below to answer question 8. The
  figure below represents the human
  immunodeficiency virus.

• 8. The structure labeled Y represents which of
  the following?
• F. capsid
• G. envelope
• H. RNA genome
• J. reverse transcriptase

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Short Response
Standardized Test Prep
Chapter 24

• Reverse transcriptase is an enzyme that catalyzes
  the synthesis of DNA from RNA.
• Explain why RNA viruses must have reverse
  transcriptase to replicate.

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Short Response, continued
Standardized Test Prep
Chapter 24

• Reverse transcriptase is an enzyme that catalyzes
  the synthesis of DNA from RNA.
• Explain why RNA viruses must have reverse
  transcriptase to replicate.
• Answer Retroviruses need reverse transcriptase
  to make DNA that can be inserted into the host
  cells genome for replication.

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Extended Response
Standardized Test Prep
Chapter 24

• Base your answers to parts A B on the
  information below.
• Viruses share several characteristics of living
  organisms. However, viruses are not considered to
  be living.
• Part A Compare the characteristics viruses share
  with living organisms to the characteristics they
  do not share with living organisms.
• Part B Would you anticipate more or fewer
  emerging viral diseases to appear in the future?
  Explain.

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Extended Response, continued
Standardized Test Prep
Chapter 24

• Answer
• Part A Viruses have genetic material and
  proteins, as living organisms do. However,
  viruses cannot reproduce on their own and lack
  cytoplasm, organelles, metabolism and
  homeostasis, all of which are characteristics of
  living things.
• Part B Sample answer I would anticipate more
  emerging diseases due to increasing human
  population, which increases the chance of contact
  between humans and infected animals.