Photosynthesis and Cellular Respiration Photosynthesis ..
The influence of human society on the future of the world's forests and the role of forests in the global carbon cycle are discussed in Science, beginning on page 1435.
Credit: Copyright 2008 AAAS
IB Biology: Photosynthesis And Cellular Respiration
Light from the sun is actually energy, and is advantageous to the Earth in several ways. One of the most important ways is through photosynthesis. Plants absorb the red and blue wavelengths of light energy, and reflect the green wavelength. This is why plants appear to be green; that is the color not being absorbed by the plants.
That is the "cost" you pay to keep operating, and it is analogous to the respiration cost that a plant has when their cells use some of the energy fixed in photosynthesis to build new enzymes or chlorophyll to capture light or to get rid of waste products in the cell.
CHARACTERISTICS OF TROPICAL RAINFORESTS H
The acidity was found to arise from the opening of their stomata at night to take in CO2 and fix it into malic acid for storage in the large vacuoles of their photosynthetic cells. It could drop the pH to 4 with a malic acid concentration up to 0.3M . Then in the heat of the day, the stomata close tightly to conserve water and the malic acid is decarboxylated to release the CO2 for fixing by the Calvin cycle. PEP is used for the initial short-term carbon fixation as in the , but the entire chain of reactions occurs in the same cell rather than handing off to a separate cell as with the C4 plants. In the CAM strategy, the processes are separated temporally, the initial CO2 fixation at night, and the malic acid to Calvin cycle part taking place during the day.
during growth and photosynthesis, ..
The importance of rainforests in the carbon cycle depends on the extent of the forest, the amount of carbon stored per unit area (as plant body or as organic material in the soil), and the rate at which carbon is “fixed” by the plants during photosynthesis.
Carbon Cycle In The Rainforest by Chris Grego on Prezi
When a crop of wheat grows, neworganic matter is created by the process of photosynthesis, which convertslight energy into energy stored in chemical bonds within plant tissue.
13/10/2009 · Biology of Tropical Rainforests
This unit consists of following topics and each topic is explained with picture/diagram for easy understanding. 1. What is an ecosystem? 2. Populations and communities 3. Habitat and Niche 4. Diversity 5. Main ecosystems such as: Desert, Rainforest, Ocean, Taiga, Aquatic ecosystem (marine and fresh water ecosystem, lake ecosystem and pond ecosystem.) Tundra, Chaparral, Grassland, Temperate Forest. 6. Abiotic and biotic factors 7. Species interactions 8. Biotic components of ecosystem:
Carbon Cycle in the Rainforest ..
Like chlorophyll-bearing plants andother organisms capable of photosynthesis, chemosynthetic organisms areautotrophs (see for more information).