Difference between revisions of "Some science for the gardener"

Revision as of 07:53, 28 May 2012

This is Section 3 of the Gardening Seminar:Start your own garden. Comments or questions are appreciated. You can also write to John Eagles.

[[|320px|thumb|right|]] Intro text

Photosynthesis

Main article: Photosynthesis

Diagram of the process of photosynthesis

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. It is the magical process that makes all our gardening and farming worthwhile. Air (carbondioxide) and water and sunlight are transformed into energy (sugar) and the structural element (carbon) for cells and oxygen to breathe.

Photosynthesis is vital for all life on Earth that needs oxygen.

Photosynthesis maintains normal levels of oxygen in the atmosphere
It is the source of energy for building up the cells of an organism in which photosynthesis occurs, or as a source of food, it gives this energy to other organisms. For example, humans and animals eat plants.

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@@ Line 6: / Line 6: @@
 == Photosynthesis ==
 : ''Main article: [[Photosynthesis]]
+[[File:Schematic Photosynthesis - WikiCommons.gif|200px|thumb|right|Diagram of the process of photosynthesis]]
+Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. It is the magical process that makes all our gardening and farming worthwhile. Air (carbondioxide) and water and sunlight are transformed into energy (sugar) and the structural element (carbon) for cells and oxygen to breathe.
+Photosynthesis is vital for all life on Earth that needs oxygen.
+# Photosynthesis maintains normal levels of '''oxygen '''in the atmosphere
+# It is the '''source of energy''' for building up the cells of an organism in which photosynthesis occurs, or as a source of food, it gives this energy to other organisms. For example, humans and animals eat plants.
 === Subsection ===