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4. A researcher is interested in the mode of transport of three different substances (A, B, & C) across the cell membrane. The researcher's data is presented in the graphs below. A) A Initial rate of transport into the Bor C cell Concentration The graph above shows the initial rate of transport for each substance when cells that do not contain A, B, or C are placed in solutions of differing concentrations of A, B, and C, respectively. Based on this data, which of the following is/are compatible modes of transport for substance A? (active transport, facilitated diffusion, simple diffusion) For substance B? For substance C?

4. A researcher is interested in the mode of transport of three different substances (A, B, & C) across the cell membrane. The researcher's data is presented in the graphs below. A) A Initial rate of transport into the Bor C cell Concentration The graph above shows the initial rate of transport for each substance when cells that do not contain A, B, or C are placed in solutions of differing concentrations of A, B, and C, respectively. Based on this data, which of the following is/are compatible modes of transport for substance A? (active transport, facilitated diffusion, simple diffusion) For substance B? For substance C?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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### Modes of Transport of Substances Across Cell Membranes #### Problem Statement: A researcher is investigating the mode of transport for three different substances (A, B, and C) across the cell membrane. The research data is shown in the graph below. **Graph Description:** - The y-axis represents the "Initial rate of transport into the cell". - The x-axis represents the "Concentration". The graph displays three different curves: 1. Substance A: Exhibits a steep, linear increase in the initial rate of transport as the concentration increases. 2. Substance B or C: Shows a slower, linear increase in the initial rate of transport with increasing concentration, leveling off at a certain point. **Explanation of the Graph:** This graph indicates how the initial rate of transport into the cell varies with different concentrations for substances A, B, and C. When cells, that do not contain A, B, or C, are placed in solutions with varying concentrations of these substances, the graph helps determine the compatible modes of transport. **Questions for Analysis:** 1. **For substance A**, which modes of transport are compatible? (Options: active transport, facilitated diffusion, simple diffusion) 2. **For substance B**? 3. **For substance C**? **Interpretation:** - **Substance A**: The steep and continuous increase suggests either active transport or facilitated diffusion because the rate increases significantly with concentration. - **Substance B/C**: The leveling behavior suggests facilitated diffusion, indicative of a saturation point being reached as carrier proteins are utilized. This data is crucial for understanding cellular processes and the mechanisms cells use to intake various substances.
Transcribed Image Text:### Modes of Transport of Substances Across Cell Membranes #### Problem Statement: A researcher is investigating the mode of transport for three different substances (A, B, and C) across the cell membrane. The research data is shown in the graph below. **Graph Description:** - The y-axis represents the "Initial rate of transport into the cell". - The x-axis represents the "Concentration". The graph displays three different curves: 1. Substance A: Exhibits a steep, linear increase in the initial rate of transport as the concentration increases. 2. Substance B or C: Shows a slower, linear increase in the initial rate of transport with increasing concentration, leveling off at a certain point. **Explanation of the Graph:** This graph indicates how the initial rate of transport into the cell varies with different concentrations for substances A, B, and C. When cells, that do not contain A, B, or C, are placed in solutions with varying concentrations of these substances, the graph helps determine the compatible modes of transport. **Questions for Analysis:** 1. **For substance A**, which modes of transport are compatible? (Options: active transport, facilitated diffusion, simple diffusion) 2. **For substance B**? 3. **For substance C**? **Interpretation:** - **Substance A**: The steep and continuous increase suggests either active transport or facilitated diffusion because the rate increases significantly with concentration. - **Substance B/C**: The leveling behavior suggests facilitated diffusion, indicative of a saturation point being reached as carrier proteins are utilized. This data is crucial for understanding cellular processes and the mechanisms cells use to intake various substances.
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