What Are Photosynthesis and Respiration?

Plants make their own food by photosynthesis. Carbon dioxide and water react together in the presence of light and chlorophyll to make glucose and oxygen. The glucose is converted into starch, fats and oils for storage. It is used to make cellulose for cell walls, and proteins for growth and repair. It is also used by the plant to release energy by respiration.

Explain how photosynthesis and cellular respiration are a cycle.3.

BIO NOTES 2 - Photosynthesis + Cellular Respiration + The Cell Cycle will be available on

Do plants do cellular respiration in the dark?4.

The connection to hot and dry conditions comes from the fact that all the plants will close their stomata in hot and dry weather to conserve moisture, and the continuing fixation of carbon from the air drops the CO2 dramatically from the atmospheric concentration of nominally 380 ppm (2004 value). If the CO2 compensation point is lower on the above scale, the plant can operate in hotter and dryer conditions. The limits are placed by the fact that begins to fix oxygen rather than CO2, undoing the work of photosynthesis. C4 plants shield their rubisco from the oxygen, so can operate all the way down to essentially zero CO2 without the onset of photorespiration.

Chemical equation of cellular respirationHow are they interconnected?

Immediatelyafter exposure to 14CO2, the plant's photosynthetic tissue iskilled by immersing it in boiling alcohol, and all of the biochemical reactions cease.

Oxygen plays no part during this stage, so it is called anaerobic respiration.

05/01/2018 · What Are Photosynthesis and Respiration

The figure illustrates how closely photosynthesis and respiration are linked. As you can see, thanks to these two life-sustaining processes, plants and animals depend on each other to survive.

Photosynthesis and Cell Respiration - Andrewsscienceroom

Only plants can photosynthesize, but both plants and animals depend on respiration to release the chemical potential energy originally captured through photosynthesis.

Photosynthesis and Cell Respiration

Respiration refers to the metabolism of oxygen and the release of carbon dioxide. In it is a positive term, a process vital to life. But photorespiration is an entirely negative term because it represents a severe loss to the process of using light energy in photosynthetic organisms to fix carbon for subsequent carbohydrate synthesis. By leading to the loss of up to half of the carbon that has been fixed at the expense of light energy, photorespiration undoes the work of photosynthesis.

Cellular respiration takes place in the cytoplasm and mitochondria of the cell.

Photosynthesis and Respiration ; Standards; ..

Cellular respiration produces CO2 as a metabolic waste. This CO2 binds with water to form carbonic acid, helping to maintain the blood's . Since too much CO2 would lower the blood's pH too much, the removal of the excess CO2 must be accomplished on an ongoing basis.

Cellular respiration involves using that chemical energy and breaking it down to release energy.

Cellular Respiration - Glycolysis, Citric Acid Cycle

In aerobic respiration, oxygen is essential for ATP production. In this process, sugar (in the form of glucose) is oxidized (chemically combined with oxygen) to yield carbon dioxide, water, and ATP. The chemical equation for aerobic cellular respiration is C6H12O6 + 6O2 → 6CO2 + 6H2O + ~38 ATP. There are three main stages of cellular respiration: glycolysis, the citric acid cycle, and electron transport/oxidative phosphorylation.

Now we need to understand how cells can use the products ofphotosynthesis to obtain energy.

Respiration And Photosynthesis Cycle Biology Essay

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.