Introduction
we will be looking at the diffrence between C3 and C4 plants. We will be trying to find outthe main difrence between C3 photosynthesis and C4 Photosynthesis.
Task
our task will be to find the diffrences and similarities of C3 and C4 Photosynthesis. we will be awnsering 9 questions
Process
1. Describe the photosynthesis mechanism in C3 plants
2. Describe the photosynthesis mechanism of C4 plants
3. Lablled diagram showing C3 plant photosynthesis pathway
4. Lablled diagram showing C4 plant photosynthesis pathway
5.10 speicies of plants that ungergo C3 Photosynthesis
6. 10 speiceis pf plants that undergo C4 photosynthises
7. the environmental conditions in which those 4 speicies of c3 plants are found
8. The environmental conditions in which those 4 speices of C4 plants are found.
9. A comparison ( similarities and differences) between the 2 types of photosythetic mechanisms.
use these sites to help you.
http://www.majordifferences.com/2013/05/difference-between-c3-and-c4-cy…
http://hyperphysics.phy-astr.gsu.edu/hbase/biology/phoc.html
http://www.cropsreview.com/c3-plants.html
Evaluation
1.
C3 plants use the calvin cycle for fixing carbon dioxide. C3 stands For carbon 3. CArbon reacts with RuBP to form 2 3-carbon molecules of 3-phosphoglyceric acid.
2.
C4 plants use a two stage process were carbon dioxide is fixed in a thin-walled mesophyll cell. this forms a 4-carbon intermediate, normal malate (malic acid). the reaction involes phosphoenol pyruvate (PEP) which fixes carbon dioxide in a reaction catalyzed by PEP-carboxylate. It forms oxaloacetic acid (OAA) which is quickly converted to malic acid. The 4-carbon acid is actively pumped across the cell membrane into a thick-walled bundle sheath cell where it is split to carbon dioxide and a 3-carbon compound.This carbon dioxide then enters the calvin-cycle in a chloroplast of the bundle sheath cell and produces G3P and subsequently sucrose, starch and other carbohydrates that enter the cells energy transport system.
3.
4.
5.
C3 plants.
Rice, Wheat, Barley, cotton, potato, peanut, suger beets, oat, spinach, and fescue.
6.
C4 plants.
cobgrass, corn, sugercane, sorghum