why most of the scientists use Monark caterpillar for experiment
Answers
Plants do need food for their survival and they would not wait or depend on others to provide them with food. There is a particular mechanism in plants with which they prepare their food. This mechanism is known as Photosynthesis.
Photosynthesis
Diagram of photosynthesis
Photosynthesis is a biological process used by plants to prepare food with the help of sunlight water and carbon dioxide. The name photosynthesis is derived from the Greek word ”Photo” meaning light and “Synthesis” meaning connecting together. This means combining together with the help of light energy.
This process is also used by algae and several bacteria to convert solar energy into chemical energy. Oxygen is liberated as a by-product, and light is considered as the major factor to complete the process of photosynthesis. This process occurs usually when plants use light energy to convert carbon dioxide and water into glucose and oxygen gas. Leaves are made up of small cells which have a tiny structure known as chloroplasts. Each chloroplast contains a green colored pigment called chlorophyll. Light energy is absorbed by chlorophyll molecules whereas carbon dioxide (CO2) and oxygen (O2) enter through the tiny pores of stomata located in the epidermis of leaves.
Oxygen is considered one of the most important by-products of this process on which most of the living organism depend upon. Glucose/Sugar is a form of carbohydrates that is processed during the process of photosynthesis. It is commonly used by green plants in the form of an energy source to produce leaves, fruits, flowers, and seeds. The glucose molecules then combine with each other to develop more complex carbohydrates like cellulose and starch. The cellulose is considered as the structural material that is used in plant cell walls. The overall reaction of photosynthesis process is:
6CO2 + 6H2O —-> C6H12O6 + 6O2
Where does Photosynthesis occur?
Photosynthesis occurs mainly in leaves of specialized cell structures known as chloroplasts.
A leaf comprises a petiole, epidermis and a lamina.
The Lamina is used for absorption of sunlight and carbon dioxide during the process.
This process that occurs, takes place in chloroplasts that contain a green colored pigment called chlorophyll which is mainly responsible for green colored leaves.
During the process of photosynthesis, chlorophyll absorbs the light energy from the sun to split water molecules into hydrogen and oxygen.
The hydrogen from water molecules and carbon dioxide absorbed from the air are used in the production of glucose and the oxygen is liberated into the atmosphere through the leaves.
Glucose is a source of food for plants which provide energy for the growth and development, while the rest is stored in the roots, leaves, or fruits for their later use.