Question

We can characterize the fluid mosaic model of a membrane as ____________ floating in a sea of ___________.

1) lipids; protein
2) glucose; amino acids
3) proteins; lipid
4) phospholipids; carbohydrate
5) fats; water

Answer 1

The fluid mosaic model is described as proteins floating in a sea of lipid, indicating the dynamic and loosely arranged nature of these components within the plasma membrane's structure.

Step-by-step explanation:

The fluid mosaic model of a membrane can be characterized as proteins floating in a sea of lipid. This description fits with the understanding of the plasma membrane structure, which is composed of a mosaic of components such as phospholipids, cholesterol, proteins, and carbohydrates. These components are not static; they flow and move, while maintaining the integrity of the membrane. Integral proteins and lipids exist in the membrane as separate but loosely attached molecules, and these molecules, especially the proteins and phospholipid molecules, are able to diffuse rapidly and laterally within the membrane. The carbohydrates attached to the lipids and proteins form glycolipids and glycoproteins, extending from the membrane's surface.

Answer 2

The fluid mosaic model of a membrane is characterized by proteins floating in a sea of lipid, highlighting the dynamic nature of the plasma membrane composed of phospholipids, cholesterol, proteins, and carbohydrates.

Step-by-step explanation:

The fluid mosaic model of a membrane can be characterized as proteins floating in a sea of lipid. This model describes the structure of the plasma membrane as a fluid combination of components, including phospholipids, cholesterol, and proteins. Important features of this model include the phospholipid bilayer, with hydrophobic tails in contact with each other, and the landscape of the membrane studded with proteins.

Some proteins span the entire membrane and may be involved in transport mechanisms, while others are attached to carbohydrates forming glycoproteins and glycolipids, which function in cell recognition.