What 3 parts of a cell takes care ingestion digestion and excretion?

The three parts of a cell that primarily handle ingestion, digestion, and excretion are:

1. Lysosomes: Lysosomes are membrane-bound organelles found in eukaryotic cells. They contain various digestive enzymes capable of breaking down complex molecules, such as proteins, carbohydrates, and lipids, into simpler components. Lysosomes fuse with endocytic vesicles or damaged organelles, forming digestive vacuoles where these materials are degraded. The products of digestion are then recycled or released from the cell.

2. Endosomes: Endosomes are sack-like compartments involved in the endocytic pathway, which is how cells take in substances from outside. They receive materials from the cell surface through different endocytic processes and act as sorting stations. Early endosomes fuse with vesicles from the cell membrane, while late endosomes fuse with lysosomes to form digestive vacuoles.

3. Exocytosis Vesicles: Exocytosis is the process by which cells release substances from their interior to the extracellular environment. It involves the formation of transport vesicles that carry the waste products or other materials to the cell membrane. These vesicles fuse with the plasma membrane, and their contents are released to the outside of the cell.

Collectively, these three cellular components play critical roles in the uptake of essential substances, their breakdown into useful molecules, and the removal of waste products and worn-out cellular components from the cell.