Biochemistry › Transport Proteins
Which of the following lists these molecules in order of increasing permeability to a lipid bilayer?
Which of the following amino acids coordinates the heme ring in hemoglobin?
How does an increase in carbon dioxide affect oxygen transport in hemoglobin?
Which type of transport does not require a protein?
GLUT (glucose transporters) proteins transport glucose from the blood to cells. Which of the following statements about them are true?
I. GLUT proteins are integral membrane proteins.
II . GLUT proteins have their amino and carboxyl termini on the extracellular side of the plasma membrane.
III. Binding of glucose to the transporter protein leads to a conformation change and the transport of glucose to the inner side of the membrane.
IV. GLUT-1, GLUT-3, and GLUT-4 proteins are ubiquitous; GLUT-2 is found in the liver, pancreas and kidney.
Which of the following steps list in chronological order, the creation of a transport vesicle from a membrane via clathrin coating?
A nonspecific hexagonal structure that functions to allow movement of molecules between adjacent cells is termed a(n) __________.