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BIO 110 exam 2 - BIO 110 EXAM 2 1 Which of the following...

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BIO 110 EXAM 2 1) Which of the following types of molecules are the MAJOR STRUCTURAL COMPONENT of the cell membrane? A) Nucleic acids and proteins B) Phospholipids and cellulose C) Glycoproteins and cholesterol D) Phospholipids and proteins 2) All of the following statements about membrane structure and functions are true EXCEPT 3) The movement of a substance across a biological membrane against its concentration gradient with the help of energy input is which of the following? 4) The sodium potassium pump 5) Water passes more quickly through cell membranes than you would expect by simple diffusion because A) The bilayer is hydrophilic B) A water movement is tied to ATP hydrolysis
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C) It is a small, polar, charged molecule D) It moves through aquaporins in the membranes 6) Which of the following is TRUE regarding catabolic pathways? 7) Which of the following would decrease the entropy within a system? 8) A chemical reaction that has a POSTIVE ∆G is correctly described as 9) Molecules capable of interacting much first overcome a thermodynamic barrier known as the reactions A) Activation energy B) Heat content C) Free energy content D) Entropy
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10) Why is ATP an important molecule in metabolism?
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