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10 questions
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  • Q1
    The function of the plant cell structure shown in the enlargement in the picture below is to
    use energy from sunlight to make sugar
    provide support for the cell
    direct all the cell’s activities
    regulate substances that enter and exit the cell
  • Q2
    The table below lists the types of white blood cells found in humans, indicates how abundant they are, and describes their functions. The two most abundant types of white blood cells may both be involved in a response to which of these?
    Question Image
    Bacterial infection
  • Q3
    Some students used vinegar to dissolve away the shells of three eggs and used these eggs as models of human red blood cells. The students observed the changes in the eggs when they were placed in different solutions. Which statement best describes the role of the cell membrane in this model?
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    The cell membrane removes solutes from the environment.
    The cell membrane is an impermeable barrier that prevents water from entering the cell.
    The cell membrane allows water to enter and leave the cell.
    The cell membrane allows solutes to enter the cell, which causes the cell to shrink.
  • Q4
    This diagram shows cellular activity across a cell membrane. Which two processes does this diagram most directly model?
    Question Image
    Transport of molecules and energy conversions
    Homeostasis and transport of molecules
     Synthesis of new molecules and homeostasis
    Energy conversions and synthesis of new molecules
  • Q5
    Students use a microscope to look for structures present in four different cells. The students placed an X for each structure that was viewed for each cell on the table shown. Which cell that was viewed is most likely a prokaryote?
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    Cell W
    Cell X
    Cell Z
    Cell Y
  • Q6
    A type of cellular transport is shown. Which description best identifies this type of cellular transport?
    Question Image
    Facilitated diffusion, because energy is being used to move molecules with the concentration gradient
    Osmosis, because energy is not being used to move molecules with the concentration gradient
    Endocytosis, because energy is not being used to move molecules against the concentration gradient.
    Active transport, because energy is being used to move molecules against the concentration gradient.
  • Q7
    The diagram shows molecules that a mitochondrion uses and produces during a cellular process. Which other molecule is a product of this process?
    Question Image
  • Q8
    In a study of physical endurance, researches observed significant increases in the heart rates and breathing rates of participants immediately after they engaged in strenuous exercise. Which statement best explains the increase in the heart rate and the breathing rate during exercise?
    An increase in muscle activity causes increases in glucose levels in red blood cells.
    Muscle cells increase in temperature and require fluid to reduce the temperature
    The water concentration in the blood increases
    Body cells require increased oxygen as energy is expended
  • Q9
    The diagram illustrates the activity of vesicles during a cellular process. Which statement best explains the function of the vesicles?
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    Extracting portions of the golgi apparatus to be regenerated for growth within the cell
    Transporting packaged molecules from the Golgi apparatus to the be released out of the cell
    Exchanging genetic information between the golgi apparatus of separate cells
    Delivering packaged materials to the golgi apparatus for protein synthesis
  • Q10
    When mammals get an infection, their internal body temperature often rises 2 to 3 degrees Celsius. The body gets the energy it needs to react to an infection by-
    Increasing the rate of cellular division
    decreasing the rate at which carbon dioxide is removed from the cell.
    decreasing the rate of glucose movement into the cell
    increasing the rate of cellular respiration in mitochondria

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