Wednesday, October 26, 2011

Why can’t we humans perform photosynthesis? Describe the major differences and similarities between C3, C4, and CAM plants,Are plants more important to people, or are people more important to plants? Explain.

1.We cant perform photosynthesis because plants can make their own food but we can't. Also we cant capture the light from the sun and create a biological compound.

2. C3: Is a metabolic pathway for carbon fixation( the reduction of carbon dioxide to organic compounds by living organism) in photosynthesis. Most plants are C3 plants.
C4:  Is used in carbon fixation which has 4 carbon molecules which is present in the first part of carbon fixation.  It also uses more energy than C3 pathway.C4 pathway also requires more atp.


Cam plants: Carbon Fixation pathway but through their stomata.The stomata also releases o2 at night

I think Plants are more important because the produce their own food and without plant we wouldn't have oxygen. Also we need producers before consumers. If there was no plants all the animals would die but a plant alone could survive.