Algae, Tree, Herbs, Bush, Shrub, Grasses, Vines, Fern, Moss, Spermatophyta, Bryophyta, Fern Ally, Flower, Photosynthesis, Eukaryote, Prokaryote, carbohydrate, vitamins, amino acids, botany, lipids, proteins, cell, cell wall, biotechnology, metabolities, enzymes, agriculture, horticulture, agronomy, bryology, plaleobotany, phytochemistry, enthnobotany, anatomy, ecology, plant breeding, ecology, genetics, chlorophyll, chloroplast, gymnosperms, sporophytes, spores, seed, pollination, pollen, agriculture, horticulture, taxanomy, fungi, molecular biology, biochemistry, bioinfomatics, microbiology, fertilizers, insecticides, pesticides, herbicides, plant growth regulators, medicinal plants, herbal medicines, chemistry, cytogenetics, bryology, ethnobotany, plant pathology, methodolgy, research institutes, scientific journals, companies, farmer, scientists, plant nutrition
Select Language:
 
 
 
 
Main Menu
Please click the main subject to get the list of sub-categories
 
Services offered
 
 
 
 
  Section: Introduction to Botany » Photosynthesis
 
 
Please share with your friends:  
 
 

The C4 Plants

 
     
 
Content
Photosynthesis
  Early Research
  Modern-day Research
  Chlorophyll
  Light
  Electron Transfer
  The Calvin Cycle
  The C4 Plants
  The CAM Carbon Pathway

Numerous plants produce the 4-carbon compound oxaloacetic acid rather than the 3-carbon compound in PGA photosynthesis. Those that produce PGA are called C3 plants. Those that produce oxaloacetic acid are called C4 plants.

The oxaloacetic acid molecule is formed when a 3-carbon phosphoenol pyruvate (PEP) unites with carbon dioxide with the help of the enzyme phosphoenol pyruvate carboxylase. The C4 plants possess two kinds of chloroplasts: large chloroplasts with few grana (which are found in the bundle sheath cells surrounding the veins of a leaf) and smaller, more numerous chloroplasts (which occur in the mesophyll of the leaf). The large chloroplasts have numerous starch grains not present in the smaller chloroplasts. The C4 plants thrive at much higher temperature ranges than do the C3 plants, and the rate of photosynthesis in C4 plants is much faster than that in C3 plants.

 
     
 
 
     



     
 
Copyrights 2012 © Biocyclopedia.com | Disclaimer