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.
Akron Rape Crisis Center; YWCA of Summit County: Services provided to survivors and. co-survivors of rape and/or sexual assault, 24-Hour hotline, hospital advocacy, legal. advocacy, individual and group therapeutic services, and educational programs.