plant photosynthesis

Energy Flow - All living beings require a constant supply of energy for the various functions they perform. The energy is obtained from the sun. This energy is introduced into the biosphere by green plants by a process known as photosynthesis. Plants are able to trap t..

a) These are directly dependent upon solar radiations as the primary source of energy and the producers (green plants) synthesize their plant biomass by the process of photosynthesis. Producers form the first trophic level. b) Herbivores or primary consumers eat upon t..

(abundance: 99.76%) (abundance 0.037%) (abundance 0.204%) In its molecular state it simply exists as O 2 . Almost all of the oxygen (or dioxygen) in the Earth's atmosphere is believed to be the result of photosynthesis by green plants. Photosynthesis is quite a complic..

Leaf represents an important part of the plant body. It is involved in vital physiological activities such as transpiration, respiration and photosynthesis. Unlike the stem and the root, the leaf is flat and hence, the anatomy of the leaf differs very much from that of ste..

Carbon dioxide is a natural constituent of the atmosphere and is vital to all forms of plant life. Animals and plants give it out in the process of respiration. However it is released mainly during the combustion of fuels at homes, factories, power stations, etc. An estimate..

Characteristics of Grazing Food Chain - a) These are directly dependent upon solar radiations as the primary source of energy and the producers (green plants) synthesize their plant biomass by the process of photosynthesis. Producers form the first trophic level. b) He..

Primary and Secondary Productivity - 'The amount of organic matter or biomass produced by an individual organism, population, community or ecosystem during a given period of time is called productivity'. Primary production refers to all or any part of the energy fixed by plants possessing..

a) Oxygen in the atmosphere is in a state of 'dynamic equilibrium'. Plants and animals take in oxygen for respiration. b) During respiration, oxidation of carbohydrates and other fuels form carbon dioxide and water. Thus, during respiration oxygen enters the living world in free state an..

During photosynthesis, carbon dioxide is converted into carbohydrates and this is called fixing of carbon dioxide. Many processes like respiration, combustion, volcanic activity, etc. release carbon dioxide into the atmosphere. This carbon dioxide of the atmosphere is used by the terrest..

In C 3 plants, the rate of photosynthesis increases with an increase. In CO 2 concentration upto 500 m l.l - 1 . In C 4 plants, photosynthetic rate increases with an increase in CO 2 concentration. However these plants attain saturation at around 360 ..