Figure 1. Types of movement across membranes. Molecules can diffuse across a. membrane down a concentration gradient without the aid of a protein or the input of. energy. Passive and active transport require membrane transport proteins. Channel. proteins carry out passive transport, but carrier proteins can carry out passive or active. transport.
Akron, Iowa. Akron is a city in Plymouth County, Iowa, United States. The population was 1,486 at the 2010 census.
RECENT CLERK OF COURTS NEWS: 1  Effective Monday February 6th, 2017, Summit County Clerk of Courts Appeals Division located at 161 South High Street Akron, Ohio 44308 will permanently relocate to 205 South High Street Akron, Ohio 44308. Effective January 3rd, 2017, electronic filing will be mandatory in Summit County Court of Common Pleas Criminal Division. Welcome to the Summit County Clerk of Courts newly redesigned website. While the appearance of the home page has changed, all of the features previously available are still accessible.