design photosynthesis

The first 200 words of this essay...

TITLE : factors affecting rate of photosynthesis

Research question : What is the effect of light intensity on the rate of photosynthesis in Ananas Comosus leaf disc?

Introduction:

Photosynthesis is a chemical process whereby light energy is used to convert raw materials; water, carbon dioxide, to organic substances such as glucose and oxygen. Water vapour is also released to surrounding as waste product.

Photosynthesis can be summarized as following:

Carbon dioxide + water Glucose + Oxygen

However, the rate of photosynthesis can be higher or lower depending on the factors that affect them; light intensity, temperature, concentration of carbon dioxide. This process occurs in chloroplast because it contains abundant green pigments called chlorophyll. These pigments are found to be in any parts of the plants that is green, including the leaves.

Light intensity is one of the factors that largely affect photosynthesis because it is used to supply photons to the chlorophyll. When it reaches photosystems in chlorophyll, more electrons are excited and released to start off the process of photosynthesis. As a result, the rate of photosynthesis will increase gradually. When it reaches maximum point, the process will be constant.