Biology B - Practice Final Exam

65 Questions | Total Attempts: 122

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Biology B - Practice Final Exam

Take this to help you prepare for your final. To get credit for taking the quiz you either need to have me sign your half sheet of paper in class or print/email me your completion certificate (my email is rachael. [email protected] Org) As you take the quiz, be aware of the concepts you know well and ones you need to work on.


Questions and Answers
  • 1. 
    The carbon cycle shows how carbon molecules move between the living and nonliving components of an ecosystem. Which 2 processes of living things move carbon in and out of the environment?
    • A. 

      Cell respiration and burning fuel

    • B. 

      Photosynthesis and ocean absorption

    • C. 

      Photosynthesis and cell respiration

    • D. 

      Decomposition and cell respiration

  • 2. 
    Which of the following will decrease the amount of carbon in the environment?
    • A. 

      Burning fossil fuels

    • B. 

      Autotrophs using the process of photosynthesis

    • C. 

      Heterotrophs using the process of cell respiration

    • D. 

      Decomposition of livestock waste

  • 3. 
    Which of the following are possible consequences of Global Warming? (check all that apply)
    • A. 

      Melting of polar ice caps

    • B. 

      Decrease of carbon levels in the atmosphere

    • C. 

      Rising sea levels

    • D. 

      Unusual climate changes destroying ecosystems

    • E. 

      Decrease of overall temperatures on Earth

    • F. 

      Loss of land mass

  • 4. 
    Which best describes the greenhouse effect?
    • A. 

      The decrease of global temperatures

    • B. 

      Climate changes occurring worldwide

    • C. 

      An increase in environmental nitrogen levels

    • D. 

      The warming of earth's temperature due to gases that trap heat

  • 5. 
    Which molecules are able to be used by some type of living organisms? Check all that apply.
    • A. 

      Oxygen

    • B. 

      Carbon Dioxide

    • C. 

      Glucose

    • D. 

      Nitrogen gas

  • 6. 
    Which is true about the nitogen cycle?
    • A. 

      Bacteria converts unusable nitrogen to a form usable by living things

    • B. 

      Animals take in nitrogen from the atmosphere

    • C. 

      Decaying matter absorbs nitrogen from the soil

    • D. 

      Plants release nitrogen through photosynthesis

  • 7. 
    Humans increase the amount of nitrogen in the environment through
    • A. 

      Logging

    • B. 

      Respiration

    • C. 

      Using fertilizer

    • D. 

      Watering crops

  • 8. 
    Which is an example of a haploid cell?
    • A. 

      Liver cell

    • B. 

      Cheek cell

    • C. 

      Sperm cell

    • D. 

      Zygote

  • 9. 
    Which of the following statements apply to this picture? (check all that apply)
    • A. 

      These are homologous chromosomes

    • B. 

      One chromosome has come from mom and one from dad

    • C. 

      These are sex chromosomes

    • D. 

      These chromosomes carry the genes for the same traits

    • E. 

      The cell these chromosomes are in is going through mitosis

    • F. 

      These chromosomes are demonstrating the process of crossing over

    • G. 

      These chromosomes are increasing genetic variation

  • 10. 
    The process of _____ produces sex cells, while  _____ produces body cells
    • A. 

      Meiosis, Mitosis

    • B. 

      Mitosis, Meiosis

    • C. 

      Crossing over, Recombination

  • 11. 
    A mutation is
    • A. 

      A type of protein

    • B. 

      A change in DNA

    • C. 

      The reason for genetic equilibrium

    • D. 

      Always harmful to living things

  • 12. 
    Inherited mutations like PKU and sickle cell anemia are passed on through
    • A. 

      Mitosis of body cells

    • B. 

      Building of proteins

    • C. 

      Incomplete separation of chromosomes

    • D. 

      Sexual reproduction

  • 13. 
    What can cause a mutation? (check all that apply)
    • A. 

      Carcinogens

    • B. 

      Chance

    • C. 

      Organic Food

    • D. 

      Heredity

    • E. 

      Long Term Disease

  • 14. 
    The fusion of a sperm cell and egg cell first produces a
    • A. 

      Zygote

    • B. 

      Embryo

    • C. 

      Polar body

    • D. 

      Gonad

  • 15. 
    As an embryo develops, cells will begin to become specialized and form tissues that perform certain functions. This is called
    • A. 

      Mitosis

    • B. 

      Meiosis

    • C. 

      Differentiation

    • D. 

      Cleavage

  • 16. 
    Your body sweating in order to maintain a certain temperature is an example of
    • A. 

      Genetic diversity

    • B. 

      Evolution

    • C. 

      Homeostasis

    • D. 

      Recombination

  • 17. 
    Which of the following allele combinations is homozygous dominant?
    • A. 

      Gg

    • B. 

      Gg

    • C. 

      GG

    • D. 

      GY

  • 18. 
    When genes are located on the X or Y chromosomes the traits are called
    • A. 

      Sex-linked

    • B. 

      Incompletely dominant

    • C. 

      Codominant

    • D. 

      Completely dominant

  • 19. 
    A cat with black whiskers (BB) is bred to a cat with white whiskers (bb). What is the probability of the offspring's genotype?
    • A. 

      50% BB, 50% bb

    • B. 

      75% Bb, 25%bb

    • C. 

      75% Bb, 25% BB

    • D. 

      100% Bb

  • 20. 
    A cat with black whiskers (BB) is bred to a cat with white whiskers (bb). What is the phenotype of the offspring?
    • A. 

      Black whiskered

    • B. 

      White whiskered

    • C. 

      Grey whiskered

    • D. 

      Black and white whiskered

  • 21. 
    Polygenic traits like skin color and height are
    • A. 

      Sex linked

    • B. 

      Controlled by multiple genes

    • C. 

      Codominant

    • D. 

      Recessive

  • 22. 
    If the color of seahorses is codominant, then a red sea horse crossed with a white seahorse would result in
    • A. 

      Pink seahorses

    • B. 

      Red seahorses

    • C. 

      Red and white seahorses

    • D. 

      Some seahorses that are red and some that are white

  • 23. 
    If the color of seahorses is incompletely dominant, then a red sea horse crossed with a white seahorse would result in
    • A. 

      Pink seahorses

    • B. 

      Red seahorses

    • C. 

      Red and white seahorses

    • D. 

      Some red seahorses and some white seahorses

  • 24. 
    What is true about the picture above? (check all that apply)
    • A. 

      It is a pedigree

    • B. 

      It is a karyotype

    • C. 

      It is a male

    • D. 

      It is a female

    • E. 

      It has no chromosome abnormalities

    • F. 

      It shows and individual with Turner's Syndrome

    • G. 

      It shows an individual with Down's Syndrome

    • H. 

      It shows chromosomes affected by improper separation during meiosis

    • I. 

      It shows a mutation caused by carcinogens

  • 25. 
    When the following strand of DNA replicates, what would the complimentary strand of DNA look like? A T T C C C G A A T C C C
    • A. 

      A T T C C C G A A T C C C

    • B. 

      T A A G G G C T T A G G G

    • C. 

      U A A G G G C A A U C C C

    • D. 

      T U U G G G C U U T G G G

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