Biology Semester 1 Final

55 Questions | Total Attempts: 57

SettingsSettingsSettings
Please wait...
Biology Semester 1 Final

This is your description.


Questions and Answers
  • 1. 
    A structure within a eukaryotic cell that carries out specific activities inside the cell is called a(n)
    • A. 

      Membrane.

    • B. 

      Cytoplasm.

    • C. 

      Nucleus.

    • D. 

      Organelle.

  • 2. 
    The size to which cells can grow is limited by their
    • A. 

      Location.

    • B. 

      Structure.

    • C. 

      Function.

    • D. 

      Surface area-to-volume ratio.

  • 3. 
    Which of the following does not require energy?
    • A. 

      Diffusion

    • B. 

      Active transport

    • C. 

      Sodium-potassium pump

    • D. 

      Endocytosis

  • 4. 
    Sharing of electrons in the outer energy levels of two atoms
    • A. 

      Only occurs if both are atoms of the same element.

    • B. 

      Makes both atoms more stable.

    • C. 

      Is found only among carbon atoms.

    • D. 

      Results in ion formation.

  • 5. 
    What would be the blood type of a person who inherited an A allele from one parent and an O allele from the other?
    • A. 

      Type A

    • B. 

      Type AB

    • C. 

      Type O

    • D. 

      Type B

  • 6. 
    Which of the following does not provide new genetic combinations?
    • A. 

      Crossing-over

    • B. 

      Cytokinesis

    • C. 

      Independent assortment

    • D. 

      Random fertilization

  • 7. 
    The major atmospheric by-product of photosynthesis is
    • A. 

      Water

    • B. 

      Carbon dioxide

    • C. 

      Nitrogen

    • D. 

      Oxygen

  • 8. 
    During DNA replication, a complementary strand of DNA is made from each original DNA strand. Thus, if a portion of the original strand is CCTAGCT, then the new strand will be
    • A. 

      TTGCATG.

    • B. 

      AAGTATC.

    • C. 

      CCTAGCT.

    • D. 

      GGATCGA.

  • 9. 
    Which of the following qualities do fingerprints and DNA fingerprints have in common?
    • A. 

      Part of an extensive genome mapping effort

    • B. 

      Ease of use in an investigation

    • C. 

      Refer exclusively to traits of the human hand

    • D. 

      Unique to an individual

  • 10. 
    The phase of mitosis that is characterized by the arrangement of all chromosomes along the equator of the cell is called
    • A. 

      Telophase.

    • B. 

      Anaphase

    • C. 

      Prophase

    • D. 

      Metaphase

  • 11. 
    Long chains of amino acids are found in
    • A. 

      Sugars.

    • B. 

      Carbohydrates.

    • C. 

      Lipids.

    • D. 

      Proteins.

  • 12. 
    Acidic solutions have a pH that is
    • A. 

      Less than 7.

    • B. 

      A negative number.

    • C. 

      More than 7.

    • D. 

      Between 7 and 14.

  • 13. 
    Normal human males develop from fertilized eggs containing which of the following sex chromosome combinations?
    • A. 

      OO

    • B. 

      XX

    • C. 

      XO

    • D. 

      XY

  • 14. 
    The two types of nucleic acids are
    • A. 

      DNA and RNA.

    • B. 

      DNA and ATP.

    • C. 

      Nucleotides and ATP.

    • D. 

      RNA and ATP.

  • 15. 
    What do chloroplasts and mitochondria have in common?
    • A. 

      Digestion of cell wastes

    • B. 

      Presence in all cells

    • C. 

      Production of ATP

    • D. 

      Absorption of light energy

  • 16. 
    When crossing-over takes place, chromosomes
    • A. 

      Exchange corresponding segments of DNA.

    • B. 

      Mutate in the first division.

    • C. 

      Decrease in number.

    • D. 

      Produce new genes.

  • 17. 
    The diploid number of chromosomes in a human skin cell is 46. The number of chromosomes found in a human egg cell is
    • A. 

      23

    • B. 

      46

    • C. 

      92

    • D. 

      12.5

  • 18. 
    Which of the following shows the correct sequence of the cell cycle?
    • A. 

      G1 -> S -> G2 -> mitosis -> cytokinesis

    • B. 

      S -> G1 -> G2 -> mitosis -> cytokinesis

    • C. 

      Mitosis -> G1 -> S -> G2 -> cytokinesis

    • D. 

      Cytokinesis -> mitosis -> G1 -> S ->G2

  • 19. 
    Organisms that are not autotrophs
    • A. 

      Get energy from sunlight.

    • B. 

      Must consume other organisms to get energy.

    • C. 

      Can survive without energy.

    • D. 

      Get energy from inorganic molecules.

  • 20. 
    Which of the following is NOT a part of the carbon cycle?
    • A. 

      Carbon dioxide in the atmosphere

    • B. 

      Nitrogen-fixation by leguminous bacteria

    • C. 

      The dark carbon-fixation process of photosynthesis

    • D. 

      Exhalation of carbon dioxide from human lungs

  • 21. 
    Water is a polar molecule because
    • A. 

      It has a charge.

    • B. 

      It contains two hydrogen atoms for each oxygen atom.

    • C. 

      Different parts of the molecule have slightly different charges.

    • D. 

      It does not have a charge.

  • 22. 
    In a cell, proteins are made on the
    • A. 

      Mitochondria.

    • B. 

      Ribosomes.

    • C. 

      Cell membrane.

    • D. 

      Nucleus.

  • 23. 
    Sharing of electrons in the outer energy levels of two atoms
    • A. 

      Only occurs if both are atoms of the same element.

    • B. 

      Makes both atoms more stable.

    • C. 

      Is found only among carbon atoms.

    • D. 

      Results in ion formation.

  • 24. 
    The amount of guanine in an organism always equals the amount of
    • A. 

      Cytosine.

    • B. 

      Thymine.

    • C. 

      Adenine.

    • D. 

      Protein.

  • 25. 
    On Earth, under normal conditions, all matter is composed of
    • A. 

      Atoms.

    • B. 

      Cells.

    • C. 

      Carbon.

    • D. 

      Molecules.

Back to Top Back to top