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Cell Biology

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