QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
Which of the following statements is correct regarding net diffusion?
The greater the concentration gradient, the faster the rate.
The rate is independent of temperature.
Molecular weight of a substance does not affect the rate.
The lower the temperature, the faster the rate.
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Answer
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Step 1
The statement "The greater the concentration gradient, the faster the rate." is correct regarding net diffusion. When there is a greater concentration gradient, particles will diffuse more quickly from an area of high concentration to an area of low concentration. This is because the driving force for diffusion is the concentration gradient, and a larger gradient results in a stronger driving force.
Step 2
The statement "The rate is independent of temperature." is incorrect. Temperature can have a significant effect on the rate of diffusion. Increasing the temperature generally increases the kinetic energy of the particles, which leads to an increase in the rate of diffusion. Conversely, decreasing the temperature decreases the kinetic energy of the particles, which leads to a decrease in the rate of diffusion.
Final Answer
The correct statement regarding net diffusion is: "The greater the concentration gradient, the faster the rate."
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