4.1.Diffusion2

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| By Ionca
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Ionca
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Quizzes Created: 33 | Total Attempts: 36,738
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  • 1/8 Questions
    Glucose indicator was added to a beaker of an unknown liquid. Starch indicator was added to a different beaker containing the same unknown liquid. The color of the indicator solutions before they were added to the beakers and the color of the contents of the beakers after adding the indicator solution are recorded in the chart below.   Which carbohydrate is present in the unknown liquid? - ProProfs

    Glucose indicator was added to a beaker of an unknown liquid. Starch indicator was added to a different beaker containing the same unknown liquid. The color of the indicator solutions before they were added to the beakers and the color of the contents of the beakers after adding the indicator solution are recorded in the chart below.   Which carbohydrate is present in the unknown liquid?

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4.1.Diffusion2 - Quiz
About This Quiz

These questions deal with the diffusion lab that we just completed
REMEMBER: PERIOD # followed by FIRST & LAST NAME you must score at least a 70

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  • 2. 

    If frog eggs taken from a freshwater pond are placed in a saltwater aquarium, what will most likely happen?

    • Water will leave the eggs.

    • Salt will leave the eggs.

    • Water will neither enter nor leave the eggs.

    • The eggs will burst.

    Correct Answer
    A. Water will leave the eggs.
    Explanation
    When frog eggs are placed in a saltwater aquarium, the concentration of salt in the surrounding water is higher than that in the eggs. This creates a concentration gradient, causing water to move out of the eggs through osmosis. As a result, the eggs will lose water and shrink. Therefore, the most likely to happen is that water will leave the eggs.

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  • 3. 
    Part of a laboratory procedure is shown in the diagram below.   This setup would most likely be involved in a procedure to - ProProfs

    Part of a laboratory procedure is shown in the diagram below.   This setup would most likely be involved in a procedure to

    • Stain specimens while making a wet mount

    • Test for the presence of glucose using an indicator

    • Separate pigments in a mixture

    • Determine the pH of solutions

    Correct Answer
    A. Test for the presence of glucose using an indicator
    Explanation
    The setup shown in the diagram consists of a test tube containing a solution and a test strip or indicator. This setup is commonly used to test for the presence of glucose using an indicator. The indicator will change color in the presence of glucose, allowing the experimenter to determine if glucose is present in the solution. This setup is not typically used for staining specimens, separating pigments, or determining pH.

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  • 4. 
    Base your answers to this question on the experimental setup shown below. On the diagram below, where is the expected location of the starch after a period of one hour? - ProProfs

    Base your answers to this question on the experimental setup shown below. On the diagram below, where is the expected location of the starch after a period of one hour?

    Correct Answer
    inside
    inside the bag
    inside bag
    inside only
    Explanation
    The expected location of the starch after a period of one hour is inside the bag.

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  • 5. 
      Base your answers to this question on the experimental setup shown below. State one reason why some molecules can pass through a certain membrane, but other molecules can not. - ProProfs

      Base your answers to this question on the experimental setup shown below. State one reason why some molecules can pass through a certain membrane, but other molecules can not.

    Correct Answer
    too big
    molecules are too large
    molecules are too big
    too large
    too big to pass through
    too large to pass through
    Explanation
    Some molecules cannot pass through a certain membrane because they are too big or too large in size. The size of the molecules determines their ability to pass through the membrane.

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  • 6. 
    Base your answers to this question on the experimental setup shown below. When starch indicator is used, what observation would indicate the presence of starch?   - ProProfs

    Base your answers to this question on the experimental setup shown below. When starch indicator is used, what observation would indicate the presence of starch?  

    Correct Answer
    color changes
    color change to purple
    color changes to blue black
    color change to blue black
    color changes to purple
    color change
    purple
    blue black
    Explanation
    The presence of starch can be indicated by a color change in the solution. Specifically, if the color changes to purple or blue-black, it suggests the presence of starch.

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  • 7. 
    A laboratory setup of a model cell is shown in the diagram below. Which observation would most likely be made 24 hours later?   - ProProfs

    A laboratory setup of a model cell is shown in the diagram below. Which observation would most likely be made 24 hours later?  

    • The contents of the model cell have changed color.

    • The diameter of the model cell has increased.

    • The model cell has become smaller.

    • The amount of distilled water in the beaker has increased.

    Correct Answer
    A. The diameter of the model cell has increased.
  • 8. 
    A model cell setup is represented in the “Initial State” diagram below. Which diagram indicates the areas where each of these substances would be located after 20 minutes?   - ProProfs

    A model cell setup is represented in the “Initial State” diagram below. Which diagram indicates the areas where each of these substances would be located after 20 minutes?  

    Correct Answer
    A.

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 04, 2011
    Quiz Created by
    Ionca
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