Chloroplasts, the parts of plant cells responsible for photosynthesis, are green because they contain the pigment chlorophyll, which absorbs the red and blue wavelengths of light and reflects back the green wavelengths. Chlorophyll absorbs particular colors of light to provide the right amount of energy for photosynthesis to take place. Photosynthesis is the process by which plants use the energy from the sun to convert carbon dioxide from the air into carbohydrates for food.Know More
Chloroplasts are found in cells located in the leaves of plants. The chlorophyll in the chloroplasts gives the leaves their distinct green coloring. Chloroplasts develop fully when they are exposed to light.
Each chloroplast has a double layer of membranes that protects its structures. Stroma, a thick, enzyme-rich fluid, fills the area enclosed by the membranes. Layered structures called grana, which contain chlorophyll, are located throughout the stroma.
When a chloroplast is exposed to light, photosynthesis starts. The light is absorbed by the chlorophyll and converted to chemical energy in the grana. Then enzymes in the stroma begin a series of reactions which use the chemical energy to convert carbon dioxide molecules into carbohydrate molecules. The plant uses the carbohydrates for growth and respiration. Extra carbohydrates are stored for later use.Learn more about Botany
Photosynthesis is an endergonic reaction. An endergonic reaction requires or absorbs energy from its surroundings, while an exergonic reaction releases energy. Most reactions that create or synthesize compounds are endergonic.Full Answer >
Photosynthesis is necessary because it forms the basis of the food chain. Photosynthesis, which occurs in green plants and algae, is the process by which sunlight combines with carbon dioxide, water and a chemical called chlorophyll to produce simple sugars. These sugars provide the plants with an energy source, and, when they are eaten by a predator, these sugars provide energy for the animal.Full Answer >
Photosynthesis is the ultimate source of the energy for all the food that humans require, as well as the source of the energy used to build the biological materials that humans use, such as wood, cotton and wool. It is also the major source of oxygen gas that all animals require.Full Answer >
Photosynthesis and chemosynthesis are similar in that they both provide for the process by which plants produce food and fuel for growth. However, they differ in terms of how they provide for this process. Photosynthesis accomplishes this process through sunlight, while chemosynthesis accomplishes it through chemical energy.Full Answer >