Question: What is the term to describe maintaining internal balance in the cell?
The term to describe maintaining internal balance in the cell is homeostasis. Homeostasis is the process by which cells and organisms maintain a stable internal environment despite changes in their external environment. This is essential for life, as it allows cells and organisms to function properly.
Homeostasis is maintained in the cell through a variety of mechanisms, including:
- Active transport: Active transport is the process of moving molecules across a cell membrane against their concentration gradient. This requires energy from ATP.
- Passive transport: Passive transport is the process of moving molecules across a cell membrane down their concentration gradient. This does not require energy.
- Diffusion: Diffusion is the movement of molecules from an area of high concentration to an area of low concentration. This also does not require energy.
- Osmosis: Osmosis is the movement of water across a semipermeable membrane from an area of high water concentration to an area of low water concentration. This also does not require energy.
Cells use these mechanisms to maintain a stable concentration of ions, nutrients, and waste products inside the cell. They also use these mechanisms to regulate their pH and temperature.
When homeostasis is disrupted, cells and organisms can become sick or even die. For example, if a cell's sodium-potassium pump fails, the cell will not be able to maintain its internal balance of sodium and potassium ions. This can lead to a variety of health problems, including heart failure and muscle paralysis.
Homeostasis is a complex and dynamic process, but it is essential for life. Cells and organisms constantly monitor and adjust their internal environment to ensure that it remains stable.
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