Symporters and antiporters (a.k.a. exchangers) are two different types of coupled membrane transporters. In mammalian cells, the movement of small molecules across the plasma membrane through these transporters is coupled to the concentration gradient of what ion? Clearly describe the direction of the co-transported solute carried out by a plasma membrane localized symporter and an antiporter.  

Answer the following TWO questions: 1.) What were the 4 events that led to the American Revolution (provide details on each one)? 2.) What were some of the key differences between the Articles of Confederation and the U.S. Constitution?

Choisis la bonne expression pour compléter la phrase. Le Pape est le chef de l’église ____________________.

Choisis la bonne expression pour compléter la phrase. Amir vient _________________; il est marocain.

Écris une phrase en utilisant le mot suivant.  Ta phrase doit démontrer ta compréhension et être grammaticalement correcte. accent

Trouve le mot français correspondant à chaque expression anglaise.

A driver accidentally bumped a fire hydrant creating a bending moment of 790 N·m in the pipe below. The pipe has an inside diameter of 175 mm and a wall thickness of 12 mm and is pressurized to 350 kPa. Determine the largest normal stress along the length of the pipe.

A point in a structural member is subjected to the following stress magnitudes. The stress directions are shown in the image. Determine the larger principal stress in the x-y plane.|σx| = 20 MPa|σy| = 50 MPa|τxy| = 95 MPa

A driver accidentally bumped a fire hydrant creating a bending moment of 625 N·m in the pipe below. The pipe has an inside diameter of 155 mm and a wall thickness of 6 mm and is pressurized to 300 kPa. Determine the largest normal stress along the length of the pipe.

A point in a structural member is subjected to plane strain. Determine the average normal strain associated with the maximum shear strain in the x-y plane.εx = –120 μεεy = –250 μεγxy = –70 μrad