. What would happen to the life of a cell if there was no Golgi apparatus?

Without the Golgi apparatus, cells would face severe disruptions in protein processing, packaging, and distribution, likely leading to cellular dysfunction and death. Proteins synthesized by ribosomes and processed in the endoplasmic reticulum would not undergo essential modifications like glycosylation (adding sugar groups) that are critical for their proper folding, stability, and function. Many proteins require these post-translational modifications to become biologically active, so their absence would result in non-functional or misfolded proteins accumulating in the cell, potentially causing cellular stress and triggering cell death pathways.

The cell would also lose its ability to properly sort and transport proteins to their correct destinations. Secretory proteins like hormones, digestive enzymes, and antibodies could not be packaged into vesicles for export, severely compromising the cell's ability to communicate with other cells and contribute to tissue function. Lysosomes would not form properly since the Golgi packages their digestive enzymes, leading to accumulation of cellular waste and debris. Membrane proteins and lipids would not reach the plasma membrane efficiently, disrupting membrane composition and function. In secretory cells like pancreatic cells (producing insulin) or salivary gland cells (producing enzymes), the absence of Golgi would be catastrophic, as secretion is their primary function. While some basic cellular processes might continue temporarily using existing functional proteins, the cell would gradually accumulate defects and eventually die due to inability to maintain normal operations or respond to changing conditions.