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.
Mitochondria are organelles that are scattered throughout the. cell, all cells have mitochondria. This is where chemical reactions occur that transfer energy from organic compounds to ATP. ATP controls most of the reactions that occur inside of the cell.