
Пж помогите Какие органойды в клетке


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Organelles in a Cell
In a cell, there are various organelles that perform specific functions crucial for the cell's survival and overall functioning. Here are some of the key organelles found in a typical eukaryotic cell:
1. Nucleus: - The nucleus is often referred to as the control center of the cell. - It contains the cell's genetic material and is responsible for regulating gene expression and mediating cell division. - The nucleus is enclosed by a double membrane called the nuclear envelope, which contains pores for the exchange of materials.
Source: 2. Mitochondria: - Mitochondria are known as the powerhouse of the cell. - They are responsible for generating adenosine triphosphate (ATP), which is the primary energy currency of the cell. - Mitochondria have their own DNA and are believed to have originated from an ancient symbiotic relationship between a eukaryotic cell and a prokaryotic cell.
Source: 3. Endoplasmic Reticulum (ER): - The endoplasmic reticulum is a network of membranes found throughout the cell. - It plays a crucial role in the synthesis of proteins and lipids. - There are two types of ER: rough ER, which has ribosomes on its surface and is involved in protein synthesis, and smooth ER, which is involved in lipid metabolism and detoxification.
Source: 4. Golgi Apparatus: - The Golgi apparatus is involved in processing, packaging, and distributing molecules within or outside the cell. - It modifies proteins and lipids produced by the ER and prepares them for secretion or for use within the cell.
Source: 5. Lysosomes: - Lysosomes are membrane-bound organelles containing digestive enzymes. - They are involved in breaking down various cellular waste materials, such as damaged organelles or ingested particles, through a process called autophagy.
Source: 6. Chloroplasts (in plant cells): - Chloroplasts are responsible for photosynthesis in plant cells. - They contain chlorophyll, a pigment that captures light energy and converts it into chemical energy in the form of glucose.
Source: 7. Vacuoles: - Vacuoles are membrane-bound organelles found in plant and fungal cells. - They play a role in maintaining turgor pressure, storing nutrients, and isolating harmful materials within the cell.
Source: These organelles work together to ensure the proper functioning and survival of the cell, each performing specific functions essential for the cell's overall operation.


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