churn in American English. churnverb [ I/T ] [ I ] The water was churning and the boat was rocking. [ M ] The fish churned up the water when we threw them some food. [ T ] fig. Seeing the car ahead flip over churned his stomach.
Animal cells and plant cells both contain: 1  cell membrane. 2  cytoplasm. 3  nucleus. mitochondria.
nucleus is the brain that controls the cell and holds the DNA.        Cell membrane   Controls what substances can get into and out of the cell.   Cytoplasm â¦   Jelly-like substance, where chemical reactions happen. In plant cells there's a thin lining, whereas in animal cells most of the cell is cytoplasm.