plant photosynthesis

Question: Give four examples of a chemical change. Answer: 1) Burning of coal. 2) Rusting of iron. 3) Photosynthesis in plants. 4) Electrolysis of water into hydrogen and oxyge..

1. The leaves enclose cells containing green plastids called chloroplasts. The green colour of the chloroplasts is due to the presence of a pigment called chlorophyll. Due to this pigment, plants are capable of synthesising their food by a process called photosynthesis. 2. The s..

(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..

Collenchyma is involved in the following functions in the plant body. Providing mechanical support Exchange of respiratory gases Photosynthesis Storage of secretory product..

Main source of oxygen are the plants which evolve oxygen as a by-product of photosynthesis. It is used chiefly by most of the living organisms in their aerobic respiration except certain anaerobics. Oxygen acts as a limiting factor in the distribution of animals in aquatic medi..

'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 chlorophyll. The total amount of sol..

Photosynthesis In this process chlorophyll in green plants converts carbon dioxide and water into glucose and oxygen, energy is provided by the energy of sunligh..

. Without the constant supply of water the plant cannot carry on any of its physiological activities such as photosynthesis, respiration and growth. Obviously an understanding of the manner in which plants get water is important. In this chapter we shall study the abso..

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..

At a given low concentration of CO 2 and non-limiting light intensity, the photosynthetic rate of a given plant will be equal to the total amount of respiration. The atmospheric concentration of CO 2 at which photosynthesis just compensates for respiration is referred to as the ..