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Biology Asked by a SnapAndSolve user · about 1 hour ago

Using evidence from the text and images, describe two similarities between facilitated diffusion and active...

1. Using evidence from the text and images, describe two similarities between facilitated diffusion and active transport (1 pt).
2. Using evidence from the text and images, describe two differences between facilitated diffusion and active transport (1 pt).
3. Why is it necessary for energy to be present with active transport, but not with facilitated diffusion? Answer the question and use evidence from the images or text to support your answer (1 pt).
4. Describe in your own words why it is important for cells to be able to move materials in and out of the cell (1 pt).

Answer

  1. Similarities: Both facilitated diffusion and active transport involve the movement of molecules across the cell membrane. They both require the presence of a protein channel or carrier to assist in the transport of molecules.

  2. Differences: Facilitated diffusion does not require energy and moves molecules along the concentration gradient, while active transport requires energy (ATP) and moves molecules against the concentration gradient.

  3. Energy is necessary for active transport because it moves molecules against their concentration gradient, which requires an input of energy. Facilitated diffusion moves molecules along the concentration gradient, which does not require energy.

  4. It is important for cells to move materials in and out to maintain homeostasis, acquire nutrients, remove waste, and communicate with other cells. This movement is essential for cell survival and function.

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