Cellular Transport
3 years ago
dwilliamson
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19 QuestionsShow answers
  • Question 1
    60 seconds
    Q. Substance X is moving into a cell from an area of low concentration. Which of the following is responsible for transporting substance X into the cell?
    answer choices
    Proteins through the process of active transport
    Phospholipids through the process of active transport
    Proteins through the process of passive transport
    Phospholipids through the process of passive transport
  • Question 2
    60 seconds
    Q. In the picture to the right, which area(s) represent(s) the hydrophobic part of the phospholipid membrane?
    answer choices
    Structure A
    Structure B
    Structures A & B
    Neither structure A or B
  • Question 3
    60 seconds
    Q.  A cell with a semi-permeable membrane is placed in an aqueous solution with one type of particle. The cell contains 80% water.  how much salt is located inside of the cell?
    answer choices
    60%
    80%
    20%
    40%
  • Question 4
    60 seconds
    Q. Describe the movement of "Molecule D" in the apparatus shown to the right over time.
    answer choices
    They will stay in the same place
    They will move across the they are membrane until they are all on side B
    They will move across the membrane until they reach an equilibrium.
    "Molecule D" will move to side A, but "Molecule C" will stay in the same place.
  • Question 5
    120 seconds
    Q. A red blood cell has lost water due to certain changes inside the body.  What causes the water to leave the red blood cell?
    answer choices
    The fluid outside the cell is more concentrated with water, causing the red blood cell to shrink.
    The fluid outside the cell is less concentrated with water, causing the red blood cell to swell.
    The fluid outside the cell is less concentrated with water, causing the red blood cell to shrink.
    The fluid outside the cell is more concentrated with water, causing the red blood cell to swell.
  • Question 6
    30 seconds
    Q. On the diagram below, indicating the direction of osmosis (water)
    answer choices
    Into the cell
    Outside the cell
    Remain the same inside and outside the cell
    Remain the same outside, but not inside
  • Question 7
    60 seconds
    Q. Molecule X moves across a cell membrane by active transport.  Which statement best indicates the relationship that represents diffusion?
    answer choices
    HIgh conc >low
     Uses ATP
    High Conc > Low
    Does not use ATP
    Low Conc > High
    Uses ATP
    Low Conc > High
    Does not use ATP
  • Question 8
    120 seconds
    Q. Eggs were soaked in water and corn syrup, weighed the eggs before and after osmosis occurred.
    For Cup A that contained water, before osmosis it weighed 5.5 grams. After the movement of water occurred, Cup A then measured to be 6.5 grams.
    Cup B was filled with corn syrup and weighed 5.5 grams before osmosis occurred. After osmosis occurred, it weighed 3.3 grams. 
    What is the independent variable?
    answer choices
    The size of the egg
    The direction of osmosis
    The concentration gradients of liquids
    The type of container
  • Question 9
    60 seconds
    Q. The protein moves small molecules and ions across the cell membrane.
    For example, ions are moves from the side where there are few ions to the side where there are more ions.
    Which best describes this process of moving ions against a concentration difference?
    answer choices
    Facilitated diffusion not requiring energy
    Active transport requiring energy
    Passive transport
    Osmosis
  • Question 10
    120 seconds
    Q. Osmosis occurs when there is a different concentration of solute molecules on each side of the membrane. There is a  beaker containing a 30% salt solution with a plastic bag containing a 10% salt solution. What will happen to the bag after about twenty minutes?
    answer choices
    Salt will move from the bag into the 30% salt solution.
    Salt will move from the 30% salt solution into the bag.
    Water will move from the 30% salt solution into the bag.
    Water will move from the bag into the 30% salt solution.
  • Question 11
    60 seconds
    Q. Glucose is not able to pass through a semi-permeable cell membrane. If the cells need sugar to make ATP and carry out cellular processes, how does the sugar get into the cell? 
    answer choices
    passive transport by diffusion
    active transport using ATP and carrier proteins
    passive transport by osmosis
    phagocytosis
  • Question 12
    60 seconds
    Q. A person with swollen gums rinses his mouth with warm salt water, and the swelling decreases. Which of the following has occurred?
    answer choices
    The swollen gums have absorbed the saltwater solution.
    The saltwater solution lowers the temperature of the water in the gums.
    The salt in the solution has moved against the concentration gradient.
    The water in the gums has moved out due to the high concentration of salt in the solution. 
  • Question 13
    60 seconds
    Q. Cells need to bring in molecules to carry out cellular processes. Often, this requires moving the molecules across the cell membrane against the concentration gradient. How do these molecules get into the cell?
    answer choices
    passive transport by diffusion
    active transport using ATP
    Passive transport by Osmosis
    Phagocytosis
  • Question 14
    60 seconds
    Q. The cell membrane of the red blood cell will allow water, oxygen, and carbon dioxide to pass through. Because other substances are blocked from entering, this membrane is called
    answer choices
    Perforated
    Semi-permeable
    Non-conductive
    Permeable
  • Question 15
    60 seconds
    Q. Low density lipoproteins (LDL’s or bad cholesterol) are taken up “in-bulk” into the cytoplasm of a cell. This process is an example of 
    answer choices
    endocytosis. 
    exocytosis
    molecular transport
    osmosis. 
  • Question 16
    60 seconds
    Q. Diffusion does not require the cell to expend ATP. Therefore, diffusion is considered a type of 
    answer choices
    endocytosis
    exocytosis
    active transport
    passive transport
  • Question 17
    60 seconds
    Q. Which of the following is a true statement about diffusion? Diffusion 
    answer choices
    occurs from a high to low concentration
    occurs from low to high concentration
    occurs from low to low concentration
    occurs from high to high concentration
  • Question 18
    60 seconds
    Q. Since cholesterol is a lipid, it diffuses easily into (or out of) cells because it interacts with the nonpolar regions of phospholipids.
    answer choices
    True
    False
  • Question 19
    60 seconds
    Q. Examine the diagram below. The process illustrated by the neurotransmitter leaving the sending neuron is called
    answer choices
    endocytosis
    exocytosis
    passive transport
    active transport
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