Photosynthesis

[image courtesy of : photosynthesis]

Chlorophyllic plants are capable of manufacturing organic matter from inorganic substances taken from their life medium, in the presence of light. this is photosynthesis which is characterised by absorption of carbon dioxide and liberation of oxygen.Gas exchange takes place through stomata.The synthesized organic matter and water constitute the essential elements of the elaborated sap which circulates throught the conducting vessels inside the plant for its nutrition. It is the process by which plants use energy to form simple sugars from water and carbon dioxide gas. Later these sugars are converted into starch, protein, or fat; and we eat them as fruits and vegetables.

Photosynthesis process mainly is for green (chlorophyllic) plants.

After you have read this post, try answering the following questions:

1- what is photosynthesis?

2-what is the physical condition necessary for photosynthesis?

3-what gas is absorbed during this process?

Articles:

Photosynthesis

http://library.thinkquest.org/3715/photo3.html

Necessary Elements of a Plant

[image courtesy of : Collection of plants]

Chrolophyillic plants needs water,mineral salts, carbon dioxide and light in order to survive efficiently.

Experiment:

* Let some wheat grains germinate under the same conditions(temperature, medium..)
* wait for ten days to obtain wheat seedlings.
* choose plants of th same size and mass.
* Divide them into seperate pots containing the same compost
* Experiment on these plants in order to dertermine the nutritive needs of the chlorophyillic plants by changing one factor at a time (water,time,carbon dioxide)


After doing this experiment, you will realize the importance of light,water, and C02 in order for the plant to survive. Without these necessary elements, the plant will die.



After reading this post and the conflicting articles below, try to answer the following 2 questions

1-What are the basic necessary elements for the developement of a plant?
2-what are the necessary mineral salts for the plant to thrive?

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This blog introduces the basic nutritive needs of chloropyillic and non chlorophyllic plants in order to survive. Stay posted for recent updates!