Question

question 1
structurally, the plasma membrane is best described as a ______
answer
○ protein layer interspersed with peripheral phospholipids
○ phospholipid bilayer interspersed with proteins
○ protein bilayer interspersed with phospholipids
○ phospholipid layer integrated with peripheral proteins
○ i dont know yet

Explanation:

The plasma membrane's structure is known as the fluid - mosaic model. The basic framework is a phospholipid bilayer (two layers of phospholipids), and within this bilayer, proteins are interspersed (some are integral, some are peripheral). The first option is incorrect as the main layer is not a protein layer. The third option is wrong because there is no protein bilayer. The fourth option is incorrect as it's a bilayer of phospholipids, not a single phospholipid layer with peripheral proteins in that way. So the correct description is a phospholipid bilayer interspersed with proteins.

Answer:

B. phospholipid bilayer interspersed with proteins