CELL Question 1 The movement of water through a semipermeable membrane from a re

Question

CELL Question 1 The movement of water through a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration is called ________. Answer diffusion osmosis denaturation metabolism Question 2 An important aspect of transport by facilitated transporters and pumps is _________. Answer rigidity softness conformational shifts ?-helix ?-pleated sheet 1 points Question 3 Which of the following processes moves solute from low concentration to high? Answer passive transport channels diffusion active transport two of the above Question 4 The sodium-potassium pump makes the cell interior more _________ by pumping ________sodium ions out of the cell and _________ potassium ions into the cell. Answer negative, 3, 2 negative, 2,3 positive, 3,2 positive, 2,3 negative, 4,3 Question 5 What is the distinguishing feature of a P-type ATP ase? Answer It must be pumped during the cycle It must be phosphorylated during the cycle It must be protonated during the cycle It must be deprotonated during the cycle

Explanation / Answer

1) Osmosis 2) Conformational shift 3) Active transport 4) negative 3,2 5) It must be phosphorylated during the cycle

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