Plants
Published on Nov 22, 2015
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MORE DECKS TO EXPLORE
PRESENTATION OUTLINE
PLANTS
Photo by MightyBoyBrian
CAM plants
- They fix carbon at night and store the OAA in large vacuoles within the cell.
- They have their stomates open in the evening to avoid water loss, and to use the CO 2 for the Calvin-Benson cycle during the day, when it can use the sun's energy.
- Examples: cacti, pineapple
Photo by kabl1992
C3 Plants
- utilizes the C3 carbon fixation pathway as it's mechanism to convert CO2 into an organic compound
- must be in areas where CO2 concentration is high, temperature and light are moderate, and ground water is abundant.
- Examples: spinach, dandelions, rice
Photo by mynameisharsha
C4 Plants
- initially attach CO 2 to PEP to form the four-carbon compound OAA using the enzyme PEP carboxylase.
- By concentrating CO 2 in the bundle sheath cells, they promote the efficient operation of the Calvin-Benson cycle and minimize photorespiration.
- Examples: corn, sugar cane, tropical grasses
Photo by onkel_wart (thomas lieser)
