Question

Роль воды в жизни клетки. Зачем зачем клетке нужна вода скажите пожалуйста надо на 22.10.2015 г. то есть на завтра!!!!!!!! пожалуйста помогите

Answer 1

С помощью воды клетка питается

Answer 2

The Role of Water in Cell Life

Water plays a crucial role in the life of a cell. It is essential for various cellular processes and is involved in maintaining the cell's structure and function. Here are some key reasons why water is important for cells:

1. Solvent for biochemical reactions: Water acts as a universal solvent, meaning it can dissolve many substances. This property allows water to facilitate chemical reactions within the cell. Many biochemical reactions, such as protein synthesis and metabolism, occur in an aqueous environment.

2. Transport medium: Water serves as a medium for transporting nutrients, ions, and waste products within the cell. It helps in the movement of molecules across the cell membrane and between different cellular compartments.

3. Maintaining cell shape and structure: Water provides turgor pressure, which helps maintain the shape and structure of plant cells. In animal cells, water is involved in maintaining cell volume and preventing cell shrinkage or swelling.

4. Temperature regulation: Water has a high specific heat capacity, which means it can absorb and release heat without significant changes in temperature. This property helps regulate the cell's internal temperature and prevents rapid temperature fluctuations that could disrupt cellular processes.

5. Lubrication and cushioning: Water acts as a lubricant, reducing friction between cellular components. It also provides cushioning and shock absorption, protecting delicate structures within the cell.

6. Participating in metabolic reactions: Water is directly involved in many metabolic reactions, such as hydrolysis and dehydration synthesis. These reactions break down or build up molecules by adding or removing water molecules, respectively.

7. Maintaining pH balance: Water acts as a buffer, helping to maintain the pH balance within the cell. It can accept or donate protons (H+) to regulate the cell's internal pH and prevent drastic changes that could disrupt cellular processes.

These are just a few examples of the important role water plays in the life of a cell. Its unique properties make it an essential component for cellular function and survival.