Sentences with phrase «by photosynthesis»

Life is the dominant source of the molecular oxygen on our planet, as the gas is produced by photosynthesis in plants and microscopic, single - cell organisms.

They are the first known organisms to derive energy by photosynthesis while living in an environment naturally devoid of sunlight.

On land, vegetation absorbs CO2 by photosynthesis and converts it into organic matter.

They produced oxygen by photosynthesis, and sometimes the oxygen got trapped as bubbles within sticky microbial mats.

The energy stored in petroleum and other fossil fuels was originally converted from sunlight by photosynthesis in the distant past.

I also learned that chemistry is a part of everything, including the development of alternative fuels and how plants obtain food by photosynthesis, which is really another fuel.

In the short - term cycle, carbon in the atmosphere is turned into plant material by photosynthesis, then returned to the atmosphere by processes like animal digestion.

Some exist by photosynthesis, some by eating other organisms.

This creation of oxygen by photosynthesis changed our planet's atmosphere and made our lives possible.

The land - based carbon cycle works as plants take CO2 out of the atmosphere and convert it to organic material by photosynthesis.

Forests remove carbon dioxide from the atmosphere by photosynthesis.

Because CO2 uptake by photosynthesis occurs only during the growing season, whereas CO2 release by respiration occurs nearly year - round, both the Mauna Loa and South Pole concentrations show an annual cycle, with more CO2 in the atmosphere in winter.

«Algae absorb carbon dioxide and are intrinsically solar - powered by photosynthesis, but C. zofingiensis has an added benefit in that it can be cultivated on non-arable land and in wastewater.»

Smil tries to figure out what portion of the biosphere's primary productivity — the amount of plant life generated each year by photosynthesis — is consumed by humans.

The outer shell of the granule is a living layer of cyanobacteria, a type of bacteria fueled by photosynthesis.

They found both models showed a general feeding structure throughout the plankton food web: The smallest organisms were too small to ingest prey, while the largest plankton were poor competitors when living by photosynthesis.

This indicates that replacing missing iron back into the ocean could stimulate phytoplankton based photosynthesis and generate improvements to the ocean ecosystem, while removing carbon dioxide from the atmosphere as it is consumed by photosynthesis.

So all the sugars and everything that is generated by photosynthesis are basically translocated to these so - called sinks.

Under the leadership of Prof. Dr. Norbert Sauer, Erlangen - based researchers from the chairs of Molecular Plant Physiology and Biochemistry at the FAU, in cooperation with colleagues from Würzburg, Cologne and Kaiserslautern, have described and localised a protein which loads the sugar produced by photosynthesis into the phloem.

Most of the CO2 absorbed by photosynthesis, however, is released again when plants and plankton decay or are eaten by animals.

Mycorrhizal fungi live in the roots of host plants, where they exchange sugars that plants produce by photosynthesis for mineral nutrients that fungi absorb from the soil.

Micro-organisms were certainly present before 3.0 billion years ago but they were not likely capable of producing O2 by photosynthesis.

«Although tiny, these organisms are a vital part of the Earth's life support system, providing half of the oxygen generated each year on Earth by photosynthesis and lying at the base of marine food chains on which all other life in the ocean depends.»

«After we have built in these rules for the system, whether each size class lives largely by photosynthesis or largely by predation depends upon the availability of each type of resource and their relative ability to harvest them in each environment,» Follows says.

Only when we know when and where certain nutrients are available for plankton growth we can also estimate how much carbon the plankton can bind by photosynthesis and thus remove from the atmosphere.»

They focused on sugars, which are produced in the leaves by photosynthesis and transported through tubes 20 times narrower than a human hair to roots and new shoots.

If ozone is contained in the atmospheres of an extrasolar planet, it is assumed that the planet has some living organisms that generate oxygen by photosynthesis because ozone is made up of oxygen.

I enjoyed so much to start thinking in the capability of small things to make a notable difference in biological systems, such as how the properties of the cell membranes are influenced by its chemical composition, and how the food chain is mainly supported by the photosynthesis reaction of plants and algae, which ultimately lead us to survive.

Up to 9 % of the incoming short wave radiation (400 - 700nm) is incorporated into biomass by photosynthesis, admittedly requiring other nutrients in optimal abundance.

Biomass is determined by inputs driven by photosynthesis and its allocation and outputs to senescence and mortality, each with their own environmental responses.

Much of the carbon dioxide present in Earth's first atmosphere has been removed by photosynthesis, chemosynthesis, and weathering.

Hilbert says that the ecosystem feedbacks in global climate models are based on short term processes such as carbon fixation by photosynthesis or decomposition, whereas in the longer term stocks of carbon are controlled by tree demographic processes.

Although the time resolution of old air locked in ice cores is not enough to preserve seasonal cycles, there is no doubt that the seasonal cycle, which is mostly caused by photosynthesis and respiration of ecosystems on land, was similar to what we observe today.

This (increase in atmospheric oxygen) happened when the more complex of the two living cells (called «eukaryote») evolved a process called a «chloroplast» some 3 billion years ago, which utilized a chemical called chlorophyll to capture energy from the sun and convert carbon dioxide and nitrogen into a range of chemical compounds and structural polymers by photosynthesis.

Because the source of carbon is plant matter (foods and other farm crops), the net flux of carbon to the atmosphere from these sources is assumed to balance the carbon being sequestered annually by photosynthesis.