explain how a plant gains mass
A plant gains mass through a process known as photosynthesis. Photosynthesis is the process by which plants convert sunlight, carbon dioxide, and water into glucose (a form of sugar) and oxygen. This process occurs in the chloroplasts, which are specialized organelles found in plant cells.
During photosynthesis, plants use the energy from sunlight to convert carbon dioxide and water into glucose. Sunlight is captured by a pigment called chlorophyll, which is present in the chloroplasts. This energy is used to break down water molecules, releasing oxygen as a byproduct. The carbon dioxide taken in from the atmosphere is then combined with the energy-rich molecules to form glucose.
Once glucose is produced, it serves as the building block for other molecules such as starch, cellulose, and other carbohydrates. These molecules, along with water, minerals, and other nutrients absorbed from the roots, contribute to the growth and increase in mass of the plant.
Additionally, plants also gain mass by absorbing water through their roots. Water is essential for maintaining turgidity in plant cells, providing structural support and allowing for the transportation of nutrients and other molecules throughout the plant.
Overall, the combination of sunlight, carbon dioxide, water, and various nutrients enables plants to undergo photosynthesis and convert these inputs into glucose and other molecules, resulting in the gain of mass by the plant.