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explain the process of photosynthesis in detail.(please)

Photosynthesis is a process of synthesis of food (glucose) by green plants in the chlorophyll in the presence of sunlight and carbon dioxide. Also, plants require water for their survival.

1. carbon dioxide: Carbon dioxide normally present is atmosphere is about 0.039% If the level of carbon dioxide in the environment increases, the rate of photosynthesis increases. But if the level of carbon dioxide increases very much, it may become toxic and rate of photosynthesis decreases. If the concentration of carbon dioxide decreases, the rate of photosynthesis decreases.

2. Water: It is indirectly required for the process of photosynthesis as plants require it to maintain their temperature and carry other metabolic activities. Water also controls the opening and closing of stomata. If concentration of water decreases, the rate of photosynthesis decreases.

3. Light: If the light intensity and duration increases, the rate of photosynthesis increases but if it increases too much, it may damage or wither the plant. Also, it depends upon the type of plants as some plants grow in high light intensity and duration while some in low.

For more details please follow the given link- http://icse.meritnation.com/icse-biology/photosynthesis/64/726/studymaterials.html

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Photosynthesis allows plants to convert light into food, removes carbon dioxide from the atmosphere and releases oxygen into the atmosphere. Without plants that perform photosynthesis, the oxygen on our planet would be used up and all oxygen breathers would choke on a carbon-dioxide rich atmosphere.

Photosynthesis is the process in which plants convert sunlight into energy and store it as sugar. The plant uses special green pigments called chlorophyll to absorb the energy from the sun.

 

Chemical Formula

  • The chemical formula to photosynthesis is written as 6H20 + 6CO2 --> C6H12O6 + 6O2 by chemists--that is translated as six water molecules plus six carbon dioxide molecules yields one molecule of sugar and six oxygen molecules.


  1. Process

    • Plants absorb red and blue light into the thylakoid membrane of the plant cell, converting it to chemical energy. The chemical energy also is known as adenosine triphosphate, or ATP. Within the chloroplast, carbon dioxide is combined with components from the ATP process to form sugar.

    Leaf Structure

    • Leaves are the solar collectors that begin the photosynthesis process. Leaves are covered with a waxy substance called a cuticle that allows them to retain water. Holes called stoma allow carbon dioxide to enter and oxygen to escape. Xylem cells inside the vein transport water from the roots to the leaves so photosynthesis can take place.

    Chlorophyll

    • Chlorophyll is a complex molecule that absorbs the light rays of the sun. There are two types of chlorophyll molecules, A and B. Type A, found in all organisms that undergo photosynthesis, absorbs violet-blue and reddish orange-red light, whereas type B absorbs green and orange-red light, an adaptation for plants that live below 16 feet of water, where violet-blue and reddish orange-red light has trouble reaching.

 

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