5-8 - Ch7 Question5 2/2points

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Ch 7
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Question 5 2 / 2 points The sodium-potassium pump in animal cells requires cytoplasmic ATP to pump ions across the plasma membrane. When  the proteins of the pump are first synthesized in the rough ER, what side of the ER membrane will the ATP binding site be  on? Question options:  A) It will be on the cytoplasmic side of the ER. B) It will be on the side facing the interior of the ER. C) It could be facing in either direction because the orientation of proteins is scrambled in the Golgi apparatus. D) It doesn't matter, because the pump is not active in the ER. Question 6 0 / 2 points Celery stalks that are immersed in fresh water for several hours become stiff and hard. Similar stalks left in a salt solution  become limp and soft. From this we can deduce that the cells of the celery stalks are Question options:  A) hypotonic to both fresh water 
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5-8 - Ch7 Question5 2/2points

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