Tag: Cell

Cell biology is the study of cells, their structures, functions, interactions, and processes. Learn about cell types, organelles, membranes, metabolism, cell division, signaling, differentiation, and other fundamental cellular processes.

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The S phase is the period of the cell cycle in which DNA is replicated, producing identical copies of the genome for distribution to daughter cells. It is tightly regulated to maintain accuracy and prevent genomic instability.

Membrane trafficking is the vesicular transport system that moves proteins and lipids between organelles, enabling secretion, endocytosis and cellular signalling. Regulated by Rab GTPases, coat proteins and SNARE complexes, these pathways maintain organelle identity, nutrient uptake and membrane turnover, forming a central mechanism of eukaryotic cell organisation.