Why study of biology requires basic knowledge of physics and chemistry?

Options

A. Life is a physical process
B. Life is a chemical process
C. Biology is a natural science
D. Living organisms are made up of atoms and molecules which follow physical and chemical laws.

Answer

### Step-by-Step Solution

1. **Understanding the Interconnection of Sciences**: Biology, physics, and chemistry are interconnected fields of science. To fully understand biological processes, one must have a basic knowledge of physics and chemistry.

2. **Role of Chemistry in Biology**: Biological processes are fundamentally chemical reactions. For instance, processes like respiration, photosynthesis, and metabolic cycles (like the Krebs cycle) are all chemical in nature. These reactions are essential for life and cannot occur without the principles of chemistry.

3. **Role of Physics in Biology**: Physics explains many biological phenomena, particularly those involving forces and energy. For example, the process of gas exchange during respiration is governed by the principles of partial pressure, which is a concept from physics. Understanding blood flow and its dynamics also requires knowledge of physics, including concepts like viscosity and friction.

4. **Life as a Combination of Physical and Chemical Processes**: Life is not solely a physical or chemical process; it is a combination of both. Biological functions such as growth, movement, digestion, and respiration involve physical processes, while the regulation of these functions is dependent on chemical processes.

5. **Atoms and Molecules in Biology**: Living organisms are composed of atoms and molecules that follow the laws of physics and chemistry. Understanding cellular structures and functions requires knowledge of these basic units of matter and their interactions.

6. **Conclusion**: The study of biology requires a foundational understanding of both physics and chemistry because life processes are governed by the laws of these sciences. This understanding helps explain the stability and normal functioning of living organisms.