Test Bank For Understanding Pathophysiology 7th Edition By Sue E. Huether, Kathryn L. McCance | Chapter 1 – 44, Latest Edition quiestions and complete rational answers 2024 update

Test Bank For Understanding Pathophysiology 7th Edition By Sue E. Huether, Kathryn L. McCance | Chapter 1 – 44, Latest Edition quiestions and complete rational answers 2024 update 4. The fluid mosaic model for biologic membranes describes membrane behavior. According to this model, which of the following float singly or as aggregates in the fluid lipid bilayer? a. Peripheral membrane proteins b. Integral membrane proteins c. Glycoproteins d. Cell adhesion molecules ANS: B Integral membrane proteins float freely in the fluid lipid bilayer. Peripheral membrane proteins are not embedded in the layer, but reside at the surface. Glycoproteins act as cell surface markers. Cell adhesion molecules are on the outside of the membrane and allow cells to hook together. 5. Which of the following can bind to plasma membrane receptors? a. Oxygen b. Ribosomes c. Amphipathic lipids d. Ligands ANS: D Ligands are specific molecules that can bind with receptors on the cell membrane. Oxygen moves by diffusion; it does not bind to receptors. Ribosomes make proteins and are not involved in binding. Amphipathic lipids are a portion of the cell membrane.