Another activity allows students to view 3 - D molecular simulations of ecosystem processes
such as photosynthesis.
Although the reaction to transform carbon dioxide into carbon monoxide is different from anything found in nature, it requires the same basic
inputs as photosynthesis.
At Benjamin Cardozo High School in New York City, Schor became interested in how aldehydes — chemical compounds often present in car exhaust — affect respiration in animals as
well as photosynthesis, the process by which plants turn light into usable energy.
As photosynthesis favours the lighter isotope, carbon 12, over the heavier carbon 13, this «light» ratio finding suggests that organic material from biological sources may have been more abundant in diamond - forming zones early in the Earth's history than we find today,» explained Suzette Timmerman, lead author on the study.
Because carbon cycle processes such
as photosynthesis fractionate the heavy isotope 13C from the lighter 12C, isotopic analysis can usually be used to «trace» sources and sinks of carbon.
Oxygen enters the ocean through two ways: interactions between its surface and the atmosphere, and
as a photosynthesis byproduct from phytoplankton in upper layers of the ocean, much in the same way plants on land produce oxygen.
The explanation for why autumn leaves put on such a display has to do with cooling weather and a drop in the chlorophyll that usually hides the other pigments of a leaf; the vivid colors were there all along, but green rules the roost as
long as photosynthesis is happening.
Just as the dysfunction of one small screw could destroy a jetliner, so too one missing chemical can terminate an essential life process
such as photosynthesis, respiration, blood clotting, or reproduction.
Through a process
known as photosynthesis, most plants use the energy in sunlight to convert carbon dioxide from the atmosphere, plus water, into simple sugars, which are used as building blocks and form the main structural components.
This could enable research leading to significant advances in electronics, they say, as well as a better understanding of natural energy - transfer processes, such
as photosynthesis.
This process, known
as photosynthesis, is essential for plants to grow, including crops like wheat.
Drought stress leads to water deficits in crops, which affects crop growth and development and a number of metabolic processes in the plants, such
as photosynthesis and primary metabolism
This process — perfected over billions of years — is known
as photosynthesis.
Living organisms — especially marine plants called phytoplankton — require nitrogen in processes such
as photosynthesis.
They are ubiquitous in all niches of the biosphere, and their roles are clearly evident in reactions that fuel the natural world, such
as photosynthesis and respiration.
This includes cellular mechanisms such
as photosynthesis and transpiration, and how plant processes are affected by environmental factors or natural variations.
Ecosystem impacts include changes in basic processes such
as photosynthesis; large - scale shifts in the distribution of plants and animals; and increased threats from fire, pests and disease.
This scaffolding is crucial for supporting important plant functions such
as photosynthesis, nutrient gathering, and reproduction.
Evidence indicates the massive die - off was linked with an abrupt drop in productivity, the rate at which inorganic carbon is turned into organic carbon through processes such
as photosynthesis.
Carbon stored in the atmosphere, surface ocean, biomass and soils, for example, is cycled relatively quickly via processes such
as photosynthesis, respiration, decomposition, and air - sea gas exchange.
Through a process known
as photosynthesis, trees convert carbon dioxide, water and sunlight into the fuel they need to grow, locking up carbon in their trunks and branches as living biomass.
She had been conducting studies of the diversity of life on Earth to figure out how processes such
as photosynthesis might provide alternative signs of life if adapted to stars that are different from our own Sun8, 9.