2. Cell Chemistry & Cell Components
Concentration Gradients and Diffusion
2. Cell Chemistry & Cell Components
Concentration Gradients and Diffusion
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- Multiple Choice
Which of the following statements about diffusion is true?
7289views52rank - Textbook QuestionA substance moving across a membrane against a concentration gradient is moving by . a. passive transport; b. osmosis; c. facilitated diffusion; d. active transport; e. diffusion1348views
- Textbook Question
A patient is admitted to the hospital and given intravenous (IV) fluids. Four hours later, the patient complains that his mouth and eyes feel dry. You notice that he displays signs of dehydration, and when you check his IV, you see that he was given the wrong kind of fluids. Were these fluids likely hypotonic, isotonic, or hypertonic? Explain.
450views - Textbook Question
Fill in the blanks: A hypotonic solution will cause water to move________the cell and the cell will ______. A hypertonic solution will cause water to move______the cell and the cell will ________ .
412views - Multiple ChoiceWhy is there a concentration gradient of NaCl in the medulla of the kidney?
- Multiple ChoiceWhat allows sodium and potassium ions to diffuse down their electrochemical gradient across the cell membrane?