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Cell Biology

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  • Which of these terms best describes the internalization of a specific protein from outside the cell?
    Receptor-mediated endocytosis
    Lysosome
    Phagocytosis
    Pinocytosis
  • Which of the following helps maintain the shape of the nucleus?
    Nuclear lamina
    Nuclear envelope
    Nuclear localization signal
    Nuclear pore
  • A plant cell surrounded by a hypertonic solution will respond by:
    Bursting
    Storing waste in the central vacuole
    Losing water while maintaining its cell wall shape
    Putting pressure on the cell walls through a central vacoule
  • What is another term for the intracellular space?
    Cytoplasm
    Phospholipids
    Cholesterol
    Bilayer
  • Which of the following is true about chlorophyll?
    Exists in the stroma
    Is broken down into a food source
    It is a protein
    Absorbs specific light wavelengths
  • Which of the following functions is carried out by intermediate filaments but not microtubules?
    Movement of structures within the cell
    Cell movement
    Cell division
    Providing nuclear lamina structure
  • What type of transport uses membrane proteins to passively move solutes?
    Facilitated diffusion
    Osmosis
    Simple diffusion
    Active transport
  • The purpose of cellulose is to:
    Provide strength to the cell wall
    Store water
    Regulate digestive enzymes
    Create an acidic environment
  • Which does NOT describe the inner membrane of the mitochondria?
    Impermeable
    Selectively permeable
    Folds to create cristae
    Contains components for cellular respiration
  • The _____ is a double membrane that shields the nucleus.
    DNA
    nuclear envelope
    nucleolus
    chromatin
  • What do all eukaryotes have that prokaryotes do not?
    Nucleus
    Cytoskeleton
    Cell membrane
    DNA
  • Where can you NOT find ribosomes performing translation?
    Cytoplasm
    Mitochondria
    Chloroplasts
    All of these are places that you can find ribosomes
  • Where is the starting point of ribosome synthesis?
    Nuclear pore
    Nuclear localization signal
    Nuclear envelope
    Nucleolus
  • How is the phospholipid bilayer oriented?
    One head layer touches the second tail layer
    Tails face inward towards each other
    Heads face inward towards each other
    Head and tails alternate directions within a layer
  • Active transport involves
    Chemical energy
    Simple diffusion
    The movement of water
    Sodium ions
  • Which of the following cells might have the most mitochondria?
    None of these cells have mitochondria
    Skin cell
    Cardiac muscle cell
    Bacterium
  • What is the fundamental unit of life?
    Fatty Acids
    Water
    Cells
    Phospholipids
  • Which of the following describes prokaryotic DNA?
    It is linear.
    It is circular.
    It is within a nucleus.
    It is usually larger than eukaryotic DNA.
  • What language does the word 'hydro' come from?
    Russian
    Latin
    Persian
    Greek
  • A foreign cell has entered your blood stream. Which process describes how it can be engulfed by one of the cells in your immune system?
    Exocytosis
    Phagocytosis
    Lysosome
    Pinocytosis
  • What type of cell might have more smooth ER?
    Skin
    Heart
    Liver
    Nerve
  • Which of the following describes a process that involves viral replications and assembly within a host, followed by bursting the host cell wall?
    Lysogenic cycle
    Lytic cycle
    Prophage
    Replication
  • The following cytoskeleton component(s) can be dynamic, shrinking and growing by adding and subtracting subunits:
    Microtubules and Microfilaments
    Microtubules and Intermediate filaments
    Microtubules only
    Microfilaments only