A solution that has the same solute concentration as the inside of a cell is described as: 

Diffusion of substances across a membrane without the use of any cellular energy is known as: 

A cell needs to secrete a hormone made of protein to the outside environment. Which sequence of events, involving the endomembrane system, correctly describes this process? 

A scientist places dissolved starch and glucose in a dialysis bag and submerges it in plain water. After an hour, the surrounding water tests positive for glucose but negative for starch. What does this indicate about the dialysis membrane? 

During viral latency, what generally happens to viral gene expression? 

Cholesterol embedded within the cell membrane primarily functions to: 

Why is antigenic shift generally considered more dangerous on a population level than antigenic drift? 

Which statement accurately distinguishes prions, viroids, and viruses? 

The gelatinous, protective outer layer surrounding some bacteria cells, which helps with adherence and immune evasion, is called the: 

Movement of water across a selectively permeable membrane from an area of low solute concentration gradient?