ASB Cell Test Review

Test Review Questions for Cell Test
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  1. When the volume of a cell increases, its surface area
    increases at the same rate
    remains the same
    increases at a faster rate
    increaseas at a slower rate


  1. One difference between prokaryotes and eukaryotes is that
    nucleice acids are found only in prokaryotes
    mitochondria are found in larger quantities in eukaryotes
    Golgi veicles are found only in prokaryotes
    prokaryotes have no nuclear membrane


  1. The structure that regulates what enters and leaves the cell is called the
    nucleus
    cell wall
    nuclear membrane
    cell membrane


  1. A protein that fits into the cell membrane
    has 2 polar end sections that bond with water
    floats in the cell membrane
    has a nonpolar middle section
    all of the above


  1. The shape of the protein is determined by
    type and order of its amino acids
    its size
    its cell location
    none of the above


  1. A structure within a cell that performs a specific function is called a(n)
    organelle
    organ tissue
    tissue
    biocenter


  1. A particularly active cell might contain large numbers of
    chromosomes
    vacuoles
    mitochondria
    walls


  1. Proteins are made in cells on the
    mitochondria
    ribosomes
    nucleus
    cell membrane


  1. All cells have
    a covering called a membrane that surrounds the cell and controls what information and materials enter and leave it
    an internal fluid that gives shape to the cell and supports the other things within it
    a central zone or nucleus that contains the cell's genes
    All of the above


  1. All of the following are found in both plant and animal cells except
    a cell wall
    a cell membrane
    mitochondria
    the endoplasmic reticulum


  1. The organelles associated with photosynthesis are the
    mitochondria
    chloroplasts
    Golgi apparatus
    vacuoles


  1. Plant cells have large membrane bound spaces in which water, waste products, nutrients are stored. These places are known as
    mitochondira
    chloroplast
    Golgi apparauts
    vacuoles


  1. As a result of diffusion, the concentration of many types of substances
    Always remains greater inside a membrane
    eventually becomes balanced on both sides of a membrane
    always remains greater on the outside of a membrane
    becomes imbalanced on both sides of a membrane


  1. Which of the following is NOT a characteristic of facilitated diffusion?
    It requires a carrier protein
    It moves substances against a concentration gradietn
    It requires no energy input
    It involves a change in the shape of its carrier


  1. Which of the following is true of ions and their transport across cell membranes?
    The "gates" for ion channels are always open
    Ions are very small and thus can cross cell membranes readily
    Electrical or chemical signals may control the movement of ions across cell membranes
    Because they are charged particles, the movement of ions across cell membranes requires energy input


  1. The process by which water passes into or out of a cell is called
    solubility
    osmosis
    selective transport
    endocytosis


  1. What is facilitated diffusion?
    The passive movement of a particle through the phospholipid bilayer of the cell membrane
    The passive movement of a particle across a cell membrane via a channel protein
    The movement of a particle up a concentration gradietn helped by active pumping
    The movement of a particle down a concentration gradient helped by active pumping


  1. How do animals use cholesterol?
    To form part of the structure of cell membranes
    To increase the blood pressure during exercise
    To insulate neurons between nodes of Ranvier
    To help in the storage of energy


  1. Which of the following is required for osmosis to occur?
    An enzyme
    A fully permeable membrane
    ATP
    A solute concentration gradient


  1. Which of the follwoing is NOT a principle of the cell theory?
    Cells are the basic units of life
    All living things are made of cells
    Very few cells reproduce
    All cells are produced by existing cells


  1. The cell theory applies to
    bacteria
    plants and animals
    multicellular organisms
    all of the above


  1. The cells of multicellular organisms are
    smaller than those of unicellular organisms
    simpler than those of unicellular organisms
    specialized to perform particular functions
    not dependent on one another


  1. The packaging and distribution center of the cell is the
    nucleus
    golgi apparatus
    central vacuole
    nuclear envelope


  1. Diffusion occurs because
    molecules constantly move and collide with each other
    the concentration of a solution is never the same throughout a solution
    the concentration of a solution is always the same throughout a solution
    molecules never move or collide with each other


  1. Molecules that are too large to be moved across a cell membrane can be removed from the cell by
    diffusion
    exocytosis
    lipid carriers
    osmosis


  1. Binary fission
    occurs when two cells collide with each other
    produces excess energy
    creates new species
    is the process by which bacteria reproduces


  1. Hooke's discovery of cells was made observin
    living algal cells
    living human blood cells
    dead plant cells
    dead protist cells


  1. Which of the following pairs contains unrelated items?
    eukaryote-amoeba
    ribosomes-protein
    cell wall-animal cell
    mitochondria-energy


  1. Approximate size of a molecule
    1 nm
    5 nm
    10-100 nm
    1 um
    10-100 um


  1. Approximate size of a bacteria
    1 nm
    5 nm
    10-100 nm
    1 um
    10-100 um


  1. Approximate size of a eukaryotic cell
    1 nm
    5 nm
    10-100 nm
    1 um
    10-100 um


  1. Approximate size of a virus
    1 nm
    5 nm
    10-100 nm
    1 um
    10-100 um


  1. Approximate thickness of the cell membrane
    1 nm
    5 nm
    10-100 nm
    1 um
    10-100 um