Detailed Instructions: In this task, you will be given sentences in which you have to recognize the name of the body cells. A cell is a mass of cytoplasm that is bound externally by a cell membrane. Usually microscopic in size, cells are the smallest structural units of living matter and compose all living things. Although there might be several correct answers, you need to write one of them.
See one example below:
Problem: HeLa cells were first treated with 250 mug / ml Trail followed by pulse labeling of newly synthesized proteins with [ 35S ] methionine.
Solution: HeLa cells
Explanation: HeLa cells are the first immortal human cell line. It should be tagged.

Problem:  Further , the almost identical distribution of the 5 - HT1A and 5 - HT7 messengers ribonucleic acid indicate that the receptors may be co - localized in epithelial cells .
Solution:
epithelial cells