Cell biology Chapter 11 section 1

Cell biology Chapter 11 section 1 - Chapter 11 section 1...

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Chapter 11 section 1 What type of molecules pass throught the cell membrane with greatest ease? A) Ions B) Large uncharged polar molecules C) Small uncharged polar molecules D) Hydrophobic molecules ***** E) None of the above What drives the passive transport and determines its direction into or out of the cell? A) Concentration gradient ***** B) Turgor pressure C) Osmosis factor D) Ion interaction E) Nonce of the above Which of the following types of molecules do ABC transporters pump through the cell membrane? A) Ions, water, and sugars B) Ions and some small steroids C) Ions only ********* D) None of the above E) All of the above In what scenario will Active Transport be required with a postitively charged molecule? A) When electrochemical gradient with membrane potential is positive in cytosol. **** B) When electrochemical gradient with membrane potential is negative in cytosol C) When electrochemical gradient with membrane potential is neutral in cytosol. D) Inbalance of concentration gradient outside the cell.
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Cell biology Chapter 11 section 1 - Chapter 11 section 1...

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