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Definitions from the Web

Term: Endoplasmic Reticulum

Definition: The endoplasmic reticulum (ER) is a network of tubular membranes found in eukaryotic cells, primarily involved in the synthesis, folding, and transportation of proteins, as well as lipid metabolism.

Senses:

1. Biology: A complex network of membranous structures found in the cytoplasm of eukaryotic cells, involved in protein and lipid synthesis.

2. Anatomy: A cellular organelle responsible for the production, modification, and transport of proteins and fats.

Usages:

1. Popular: The endoplasmic reticulum plays a crucial role in cellular functions by providing a site for protein synthesis and transportation.

2. Local: Researchers are studying the endoplasmic reticulum to better understand its involvement in various diseases and cellular processes.

Sample Sentences:

1. Biology: The endoplasmic reticulum is vital for maintaining cell homeostasis and regulating protein synthesis.

2. Anatomy: The rough endoplasmic reticulum, characterized by ribosomes attached to its surface, is responsible for synthesizing membrane-bound proteins.

3. Popular Usage: A mutation in the endoplasmic reticulum can disrupt the proper folding and functioning of proteins, leading to diseases such as cystic fibrosis.

4. Local Usage: Recent studies have shown that ER stress, a condition related to endoplasmic reticulum dysfunction, may contribute to the development of neurodegenerative disorders.

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