What is a Eukaryotic cell : Key Features and Functions
Subject : Science
Question:
What is a eukaryotic cell?
Expert Verified Solution:
A eukaryotic cell is a type of cell that contains a nucleus and other membrane-bound organelles. Unlike prokaryotic cells, which lack a defined nucleus and are generally simpler in structure, eukaryotic cells have a complex internal organization.
Key Features of Eukaryotic Cells:
Nucleus: The most defining feature of eukaryotic cells is the nucleus, which houses the cell’s genetic material (DNA). This allows for the compartmentalization of genetic information and its transcription and replication processes.
Organelles: Eukaryotic cells contain various membrane-bound organelles such as the mitochondria (energy production), endoplasmic reticulum (protein and lipid synthesis), Golgi apparatus (modifying and packaging proteins), and lysosomes (digestion and waste removal).
Complex Structure: Eukaryotic cells are generally larger and more complex than prokaryotic cells. They have a cytoskeleton that provides structural support and helps in cellular movement.
Types of Eukaryotic Cells: Eukaryotic cells are found in a wide range of organisms, including animals, plants, fungi, and protists. Each type of eukaryotic cell has specialized structures suited to its function, such as chloroplasts in plant cells for photosynthesis.
Example:
In a plant cell, for example, you will find a cell wall, chloroplasts, and a large central vacuole in addition to the typical organelles. In animal cells, which do not have a cell wall or chloroplasts, the cell’s functions are supported by different organelles.
The presence of a nucleus and membrane-bound organelles distinguishes eukaryotic cells from prokaryotic cells, enabling more complex cellular processes and functions.
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