1.   He entered the cell and presented the letter to the aristocrat.

2.   It probably takes time to enter the cell and to activate a cascade of intracellular mechanisms leading to secretion of water and electrolytes.

3.   And since they are big molecules, antibodies cannot penetrate cell membranes to enter cells.

4.   As he entered the cell, Rosette said, Handy lunged at him.

5.   A recent visitor had to don rubber gloves, goggles, a surgical mask and a full-body smock before entering his cell.

6.   A month later, she said, three men entered her cell and attacked her.

7.   After entering a cell, the protein chews off the end of another protein, known as MAPKK, preventing it from working.

8.   Collier created a synthetic molecule that keeps anthrax toxin from entering cells, perhaps offering hope for a new treatment.

9.   Duran said that when Gurney entered the cell, Norberg was sitting on the floor.

10.   First, the drugs enter cells easily.