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TRANSPORT MECHANISM QUIZ

TRANSPORT MECHANISM QUIZ
27問 • 1年前
  • Andrea Salameda
    • 通報

    問題一覧

  • 1

    What is the main function of the plasma membrane?

    Define the cell’s borders and keep it functional

  • 2

    Which of the following is the component of the plasma membrane?

    Proteins, carbohydrates, lipids

  • 3

    What model describes the plasma membrane as a mosaic of components with fluid properties?

    Fluid Mosaic Model

  • 4

    The hydrophilic head of a phospholipid interacts with:

    Water and other polar molecules

  • 5

    What causes the membrane’s fluidity?

    Kinks in unsaturated fatty acids

  • 6

    What is the primary function of integral proteins?

    Facilitate transport and act as receptors

  • 7

    Integral proteins are:

    integrated completely into the membrane structure

  • 8

    Peripheral proteins are:

    Found on the exterior and interior membrane surfaces

  • 9

    Carbohydrates on the plasma membrane are bound to:

    Proteins and lipids

  • 10

    What is the glycocalyx?

    A sugar coating that attracts water to the cell surface

  • 11

    Which of the following molecules can freely pass through the plasma membrane?

    Water, carbon dioxide, ammonia, oxygen

  • 12

    Selective permeability refers to:

    Allowing some substances to pass while blocking others

  • 13

    Diffusion occurs when substances move:

    From higher to lower concentration

  • 14

    Which factor does NOT affect diffusion rates?

    Type of nucleic acid present

  • 15

    Osmosis is:

    The transport of water through a selectively permeable membrane

  • 16

    Which describes hypotonic solution

    the extracellular fluid has lower osmolarity than the fluid inside the cell; Water enters the cell

  • 17

    Which describes hypertonic solution?

    the extracellular fluid has higher osmolarity than the fluid inside the cell; Water leaves the cell

  • 18

    Which describes isotonic?

    the extracellular fluid has the same osmolarity as the cell; No net movement of water into or out of the cell

  • 19

    Which type of protein facilitates water transport through the membrane?

    Channel protein

  • 20

    Carrier proteins differ from channel proteins in that they:

    Bind to specific substances and change shape

  • 21

    Active transport requires energy because:

    It moves solutes against the concentration gradient

  • 22

    What is one key importance of active transport?

    Maintains ion concentrations like Na+ and K+

  • 23

    the process of removing materials from the cell through the vesicles that fuse with the plasma membrane, releasing their contents outside the cell

    Exocytosis

  • 24

    the reverse of exocytosis wherein cells engulf materials; the engulfed substance then enters the cytoplasm while enclosed in a vesicle.

    Endocytosis

  • 25

    Which type of endocytosis involves the cell engulfing solid particles or cellular eating?

    Phagocytosis

  • 26

    Which type of endocytosis involves wrapping around the dissolved materials and forms a vesicle that contains the engulfed materials or cellular drinking?

    Pinocytosis

  • 27

    Which describes bulk transport?

    Large molecules, such as proteins and polysaccharides cross the membranes in bulk through the processes of exocytosis and endocytosis.

    • 問題一覧

  • 1

    What is the main function of the plasma membrane?

    Define the cell’s borders and keep it functional

  • 2

    Which of the following is the component of the plasma membrane?

    Proteins, carbohydrates, lipids

  • 3

    What model describes the plasma membrane as a mosaic of components with fluid properties?

    Fluid Mosaic Model

  • 4

    The hydrophilic head of a phospholipid interacts with:

    Water and other polar molecules

  • 5

    What causes the membrane’s fluidity?

    Kinks in unsaturated fatty acids

  • 6

    What is the primary function of integral proteins?

    Facilitate transport and act as receptors

  • 7

    Integral proteins are:

    integrated completely into the membrane structure

  • 8

    Peripheral proteins are:

    Found on the exterior and interior membrane surfaces

  • 9

    Carbohydrates on the plasma membrane are bound to:

    Proteins and lipids

  • 10

    What is the glycocalyx?

    A sugar coating that attracts water to the cell surface

  • 11

    Which of the following molecules can freely pass through the plasma membrane?

    Water, carbon dioxide, ammonia, oxygen

  • 12

    Selective permeability refers to:

    Allowing some substances to pass while blocking others

  • 13

    Diffusion occurs when substances move:

    From higher to lower concentration

  • 14

    Which factor does NOT affect diffusion rates?

    Type of nucleic acid present

  • 15

    Osmosis is:

    The transport of water through a selectively permeable membrane

  • 16

    Which describes hypotonic solution

    the extracellular fluid has lower osmolarity than the fluid inside the cell; Water enters the cell

  • 17

    Which describes hypertonic solution?

    the extracellular fluid has higher osmolarity than the fluid inside the cell; Water leaves the cell

  • 18

    Which describes isotonic?

    the extracellular fluid has the same osmolarity as the cell; No net movement of water into or out of the cell

  • 19

    Which type of protein facilitates water transport through the membrane?

    Channel protein

  • 20

    Carrier proteins differ from channel proteins in that they:

    Bind to specific substances and change shape

  • 21

    Active transport requires energy because:

    It moves solutes against the concentration gradient

  • 22

    What is one key importance of active transport?

    Maintains ion concentrations like Na+ and K+

  • 23

    the process of removing materials from the cell through the vesicles that fuse with the plasma membrane, releasing their contents outside the cell

    Exocytosis

  • 24

    the reverse of exocytosis wherein cells engulf materials; the engulfed substance then enters the cytoplasm while enclosed in a vesicle.

    Endocytosis

  • 25

    Which type of endocytosis involves the cell engulfing solid particles or cellular eating?

    Phagocytosis

  • 26

    Which type of endocytosis involves wrapping around the dissolved materials and forms a vesicle that contains the engulfed materials or cellular drinking?

    Pinocytosis

  • 27

    Which describes bulk transport?

    Large molecules, such as proteins and polysaccharides cross the membranes in bulk through the processes of exocytosis and endocytosis.