The thermodynamics of heat inactivation Life of a cell sustained by various metabolic activities rough ribosome endoplasmic mitochondrion reticulum plasma -o membrane cytoplasm microtubules (part of cytoskeleton) 9 lysosome nucleus smooth nucleolus endoplasmic chromatin reticulum nuclear pore nuclear envelope free ribosome Golgi complex centrioleThe thermodynamics of heat inactivation Life of a cell sustained by various metabolic activities