CHAPTER 12 MEMBRANES 1. Lateral diffusion involves: a) exchange of phospholipid

Question

CHAPTER 12 MEMBRANES 1. Lateral diffusion involves: a) exchange of phospholipid molecules on the same side of membranes b) exchange of phospholipid molecules on the opposite side of membranes c) replacement of pump proteins by channel proteins d) removal of fatty acids from phospholipid molecules 2. Which of these is an ABC transporter? a) sodium-potassium pump b) MDR protein c) sodium-calcium exchange protein d) all of these 3. Prostaglandin synthase is an: a) peripheral membrane protein b) integral membrane protein c) transmembrane protein d) b and c

Explanation / Answer

Solutions:

1) Option a- exchange of phospholipid molecules on the same side of the membranes

2) Option b- MDR protein

3) Option d- B and C

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