Which of the following is not true regarding facilitated transport across a membrane? Select one: a. It requires membrane proteins. b. It involves an input of energy. O C. The movement of glucose...

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Extracted text: Which of the following is not true regarding facilitated transport across a membrane? Select one: a. It requires membrane proteins. b. It involves an input of energy. O C. The movement of glucose across the membrane by GLUT1 is an example of facilitated diffusion. O d. It is usually specific in terms of the substrate that is transported.