Question

Объясните почему животные и растительные клетки не могут существовать в отсутствии углерода,водорода,кислорода

Answer 1

Все живые организмы состоят из тех же химических элементов, что и обьекты неживой природы.   
состав98% С угливод, О кислород, N азот, Н водород.

Answer 2

Why Animals and Plant Cells Need Carbon, Hydrogen, and Oxygen

Animals and plant cells cannot exist without carbon, hydrogen, and oxygen. These elements are essential for the basic building blocks of life and are integral to the structure and function of cells.

Carbon: - Carbon is a fundamental element in all organic compounds, including carbohydrates, lipids, proteins, and nucleic acids. It forms the backbone of these molecules and is essential for the formation of complex structures within cells.

Hydrogen: - Hydrogen is a key component of water and many organic molecules. It plays a crucial role in maintaining the pH balance within cells and is a vital component of energy-carrying molecules like ATP.

Oxygen: - Oxygen is essential for cellular respiration, the process by which cells generate energy. It is a key component of many organic molecules and is necessary for the breakdown of nutrients to release energy.

In summary, carbon, hydrogen, and oxygen are essential for the formation of organic compounds, energy production, and the overall structure and function of both animal and plant cells. Without these elements, the basic processes of life would not be possible.