what is the waste product of photosynthesis and why is …
Oxygen is vital for respiration in most living organisms. Biological processes within a body, such as protein construction or muscle contraction, require energy, and this is obtained by oxidizing food products, using the molecular oxygen that has been breathed in (animals) or absorbed (plants), and converting them into (ATP). The by-product of this process is CO2, which is expelled (exhaled). In animals, the oxygen is carried around the body using , a protein found in red blood cells. The vital part of hemoglobin is the group. This is a porphyrin ring with an iron atom at the centre, which has the property of loosely binding O2. The O2 attaches to the hemoglobin, and travels in the blood from the lungs to where it is required, such as muscles and tissues. The loosely bound O2 is then released to the waiting cells, and replaced by the waste-product, CO2, which is then transported back to the lungs and exhaled. The fact that the O2-heme bond is weak allows these reversible reactions to take place easily. It also explains why a similar gas, CO, is toxic when inhaled, because it forms a very strong bond with heme and once attached, cannot be dislodged. In effect, CO 'uses up' all the available hemoglobin, leaving none left to carry oxygen, so the animal dies from asphyxiation.
The Remarkable Waste Product of Photosynthesis
Oxygen is produced during , the process whereby plants turn carbon dioxide and water into carbohydrates. This involves the use of a receptor molecule called , which traps the energy in sunlight and uses it to split water molecules to produce O2, which is then excreted from the plant as a waste product.
Most of the energyreleased both by the burning of fossil fuels and by the metabolism ofliving cells is given off as heat and must be replaced by thecontinued input of radiant energy from the Sun.The principal organic products of plant photosynthesis arecarbohydrates.
Importance of Light in Photosynthesis
Light is a very important factor in the rate of photosynthesis, in my project I am going to test that plants do need light in order to photosynthesise.
One of the important waste products of photosynthesis is oxygen gas
The excess energy not used up in the chemical reactions isstored as chemical energy in the organic products formed.The rate of photosynthesis is dependent on the followingenvironmental factors: light intensity, temperature, and theavailability of carbon dioxide, water, and certain minerals.
What is the waste product of photosynthesis
makes up one fifth of the atmosphere, with the remainder being mostly nitrogen. About 89% of the mass of the oceans is oxygen, and oxygen is the most abundant element in the Earth's crust accounting for almost half its total mass. In fact, most of the rocks on Earth are composed of oxygen-rich silicates, such as (Mg2SiO4), (Fe2SiO4) and (MgFeSiO4). Although nowadays, oxygen is abundant in the atmosphere, this was not always true. The atmosphere of the newly-formed earth contained mainly carbon dioxide and sulphur compounds. Oxygen only made an appearance when the first single-celled lifeforms evolved. These blue-green bacteria (prokaryotes) split water into hydrogen and oxygen (discarding the oxygen), and also liberate oxygen from CO2 in the process of making carbohydrates. Thus the oxygen in the atmosphere was originally a waste product - a pollutant - of the primeval planet. The vast quantities of O2 that were released by these photosynthetic processes oxidised the iron in the seas and, in effect, the Earth rusted! We can date this event by the great deposits of red iron ore that are found deep underground in certain regions of the world.
What Is The Main Waste Product Of Photosynthesis?
Light energy is absorbed by the green chemical chlorophyll. This energy allows the production of glucose by the reaction between carbon dioxide and water. Oxygen is also produced as a waste product.
In photosynthesis, plants take a waste product of ..
In the interest of genetic engineering and agricultural applications, the authors analyze the relative importance of genes that control both metabolic and light reactions as well as the structure, arrangement, and orientation of photosynthesis.