Immune System Unit Pre-assessment (Grade 7)

12 Questions | Total Attempts: 378

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7th Grade Science Quizzes & Trivia

Immune System Unit Pre-Assessment (Grade 7)


Questions and Answers
  • 1. 
    A person who has HIV/AIDS and a comprised immune system will not be able to (Standard 5.2a, 5.2f)
    • A. 

      Produce antigens

    • B. 

      Produce red blood cells

    • C. 

      Fight infections

    • D. 

      Digest food properly

    • E. 

      Produce hormones

  • 2. 
    Which of the following is true about viruses? (Standard 5.2b)
    • A. 

      All viruses contain DNA

    • B. 

      The building blocks of viruses are cells

    • C. 

      A virus is composed of a core of DNA or RNA

    • D. 

      A virus is composed of nerve tissue

    • E. 

      All of the above

  • 3. 
    Lymphocytes recognize                        as foreign molecules (Standard 5.2c)
    • A. 

      Antibodies

    • B. 

      Antigens

    • C. 

      Allergies

    • D. 

      Platelets

    • E. 

      Plastids

  • 4. 
    The human body (Standard 5.2d):
    • A. 

      Does not make cytotoxic T cells.

    • B. 

      Makes only one type of cytotoxic T cells.

    • C. 

      Makes exactly one hundred different types of cytotoxic T cells.

    • D. 

      Makes millions of different types of cytotoxic T cells.

    • E. 

      Only makes helper T cells, not cytotoxic T cells.

  • 5. 
    Which of the following statements is true about vaccinations (Standard 5.2e)?
    • A. 

      Vaccinations use weakened microbes (or parts of them) to stimulate the immune system to react.

    • B. 

      Vaccinations utilize hormones in the blood to inhibit reproduction of the virus.

    • C. 

      Vaccinations release enzymes from platelets that hydrolyze the virus.

    • D. 

      Vaccinations produce antigens that deactivate the virus.

    • E. 

      None of these statements are true.

  • 6. 
    Failure of negative feedback mechanisms to maintain homeostasis (Standard 5.2 a):
    • A. 

      Occurs when blood pressure increases during exercise

    • B. 

      Cannot be corrected by medical therapy

    • C. 

      Can be corrected by stimulating positive-feedback mechanisms

    • D. 

      Occurs when cytotoxic T cells are produced by the immune system

    • E. 

      May produce disease

  • 7. 
    Which letter best represents the following statement:  chemicals known as histamines are released as a result of antibody production (Standard 5.2g)
    • A. 

      Active immunity

    • B. 

      Passive immunity

    • C. 

      Allergies

    • D. 

      Tissue Rejection

    • E. 

      Negative Feedback

  • 8. 
    Which of the following factors may cause disease (Standard 5.2h)?
    • A. 

      Toxic substances

    • B. 

      Poor nutrition

    • C. 

      Inheritance

    • D. 

      Personal behavior

    • E. 

      All of the above

  • 9. 
    Antibiotics have been developed by biological researchers to protect humans from which type of infections (Standard 5.2j)?
    • A. 

      Bacterial

    • B. 

      Viral

    • C. 

      Cancer

    • D. 

      Both a and b

    • E. 

      All of the above

  • 10. 
    Rate, on a scale of 1 – 4, 1 being the lowest and 4 being the highest, how much do you already know about the immune system and disease?
  • 11. 
    Rate, on a scale of 1 – 4, 1 being the lowest and 4 being the highest, how interested are you in the immune system and disease?
  • 12. 
    Which statement best describes the diagram below (Standard 5.2i)?
    • A. 

      Uncontrolled cell division causes cancer

    • B. 

      Cell division accelerates to maintain homeostasis

    • C. 

      The immune system rapidly fights a dangerous virus

    • D. 

      When skin cells die, they are quickly replaced

    • E. 

      All of the above

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