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Biology Chapter 4 Test File

22 Questions
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Biology chapter test file questions

Questions and Answers
  • 1. 
    • A. 

      Obtain and process energy

    • B. 

      Convert genetic information into proteins

    • C. 

      Keep certain biochemical reactions separate from one another

    • D. 

      Both a & b

    • E. 

      All of above

  • 2. 
    The surface area-to-volume ratio of an object can be decreased by:
    • A. 

      Cutting it into smaller pieces

    • B. 

      Flattening it

    • C. 

      Stretching it

    • D. 

      Making it sperical

    • E. 

      All of the above

  • 3. 
    Members of the domains Bacteria and Archaea:
    • A. 

      Have nuclei

    • B. 

      Have chloroplasts

    • C. 

      Are multicellular

    • D. 

      Are prokaryotes

    • E. 

      Have flagella

  • 4. 
    Which of the following is not a characteristic of a prokaryotic cell?
    • A. 

      A plasma membrane

    • B. 

      A nuclear envelope

    • C. 

      A nucleoid

    • D. 

      Ribosomes

    • E. 

      Enzymes

  • 5. 
    Which of the following is (are) found in prokaryotic cells?
    • A. 

      Mitochondria

    • B. 

      Chloroplasts

    • C. 

      Nuclear membrane

    • D. 

      Ribosomes

    • E. 

      Endoplasmic reticulum

  • 6. 
    What is the major distinction between a prokaryotic and a eukaryotic cell?
    • A. 

      A prokaryotic cell does not have a nucleus, whereas a eukaryotic cell does

    • B. 

      A prokaryotic cell does not have DNA, whereas a eukaryotic cell does

    • C. 

      A prokaryotic cell is smaller than a eukaryotic cell

    • D. 

      Prokaryotic cells have not prospered, whereas eukaryotic cells are evolutionary "successes"

    • E. 

      A prokaryotic cell cannot obtain energy from its environment

  • 7. 
    A prokaryotic cell does not have a _____ or _____
    • A. 

      Nucleus; organelles

    • B. 

      Nucleus; DNA

    • C. 

      Nucleus; ribosomes

    • D. 

      Nucleus; membranes

    • E. 

      Cell wall; membranes

  • 8. 
    • A. 

      The 3 mm cube has a higher ratio

    • B. 

      The ratio increases as the cube becomes larger

    • C. 

      Increasing the volume increases the ratio

    • D. 

      The ratio decreases as the cube becomes larger

    • E. 

      The ratio does not change

  • 9. 
    You would not expect to find RNA in which of the following structures?
    • A. 

      Nucleus

    • B. 

      Mitochondrion

    • C. 

      Vacuole

    • D. 

      Ribosome

    • E. 

      Prokaryotic cell

  • 10. 
    • A. 

      Plasma membrane

    • B. 

      Nucleus

    • C. 

      Ribosome

    • D. 

      Nucleoid region

    • E. 

      Mitochondria

  • 11. 
    Ribosomes are not visible under a light microscope, but they can be seen with an electron microscope because:
    • A. 

      Electron beams have more energy than light beams

    • B. 

      Electron microscopes focus light with magnets

    • C. 

      Electron microscopes have more resolving power than light microscopes

    • D. 

      Electrons have such high energy that they pass through biological samples

    • E. 

      Living cells can be observed under the electron microscope

  • 12. 
    A general function of all cellular membranes is to
    • A. 

      Regulate which materials can cross the membrane

    • B. 

      Support the cell and determine its shape

    • C. 

      Produce energy for the cell

    • D. 

      Produce proteins for the cell

    • E. 

      Move the cell

  • 13. 
    The cytosol:
    • A. 

      Is a static region of the cell

    • B. 

      Contains DNA

    • C. 

      Is composed largely of water

    • D. 

      Supports the cell and determines its shape

    • E. 

      Chemically modifies proteins and other molecules

  • 14. 
    A specialized structure found in some prokaryotes is the:
    • A. 

      Cell wall

    • B. 

      Ribosome

    • C. 

      Cytosol

    • D. 

      Mitochondrion

    • E. 

      Chloroplast

  • 15. 
    Specialized cellular appendages of prokaryotes that help bacteria adhere to one another when they exchange genetic material are called:
    • A. 

      The golgi apparatus

    • B. 

      Cilia

    • C. 

      Flagella

    • D. 

      Pili

    • E. 

      B, c, and d

  • 16. 
    In some prokaryotic organisms the plasma membrane folds to form an internal membrane system that is able to:
    • A. 

      Carry on photosynthesis

    • B. 

      Engulf and phagocytize bacteria

    • C. 

      Synthesize proteins

    • D. 

      Propel the cell

    • E. 

      Hydrolyze carbohydrates to ATP

  • 17. 
    17. Some bacteria are able to propel themselves through liquid by means of a structure called the
    • A. 

      A. flagellum.

    • B. 

      B. pilus.

    • C. 

      C. cytoplasm.

    • D. 

      D. cell wall.

    • E. 

      E. peptidoglycan molecule.

  • 18. 
    18. If you removed the pili from a bacterial cell, which of the following would you expect to happen?
    • A. 

      A. The bacterium would no longer be able to swim.

    • B. 

      B. The bacterium would not adhere to other cells as well.

    • C. 

      C. The bacterium would no longer be able to regulate the movement of molecules into and out of the cell.

    • D. 

      D. The bacterium would dry out.

    • E. 

      E. The shape of the bacterium would change.

  • 19. 
    19. Why are prokaryotic cells generally smaller than eukaryotic cells?
    • A. 

      A. Prokaryotes have more diverse energy sources.

    • B. 

      B. Prokaryotes have a capsule that limits cell growth.

    • C. 

      C. The rigid cell wall found in prokaryotes limits cell size.

    • D. 

      D. Prokaryotes lack the genetic material needed for protein synthesis.

    • E. 

      E. Eukaryotes have compartmentalization, which allows for specialization.

  • 20. 
    20. The membrane surrounding each organelle
    • A. 

      A. is composed of hydrophobic proteins.

    • B. 

      B. regulates traffic into and out of the cell.

    • C. 

      C. is studded with ribosomes.

    • D. 

      D. allows for interactions among molecules.

    • E. 

      E. is perforated with pores.

  • 21. 
    21. Which statement about the nuclear envelope is true?
    • A. 

      A. It contains pores for the passage of large molecules.

    • B. 

      B. It is composed of two membranes.

    • C. 

      C. It contains ribosomes on the inner surface.

    • D. 

      D. Both a and b

    • E. 

      E. All of the above

  • 22. 
    22. The roles of biological membranes in eukaryotic cells include which of the functions listed below?
    • A. 

      A. Separating a cell from its environment

    • B. 

      B. Selecting what goes into and out of the cell

    • C. 

      C. Maintaining a constant internal environment

    • D. 

      D. Communicating with adjacent cells

    • E. 

      E. All of the above