What ultra stable molecule is split during PSII?

What ultra stable molecule is split during PSII?

The unique Mn4CaO5 cluster is a key feature of PSII that splits water into oxygen and protons.

What three carbon compound is considered the ultimate product of photosynthesis?

One complete cycle incorporates three molecules of carbon dioxide and produces one molecule of the three-carbon compound glyceraldehyde-3-phosphate (Gal3P). This three-carbon sugar phosphate usually is either exported from the chloroplasts or converted to starch inside the chloroplast.

What is the chloroplast Edpuzzle?

What is the chloroplast? an organelle that absorbs sunlight and uses the sunlight with carbon dioxide and water to produce glucose. What are light-dependent reactions fueled by? The Sun.

Are CAM plants C4?

The main difference between C4 and CAM plants is the way they minimize water loss. C4 plants relocate the CO2 molecules to minimize photorespiration while CAM plants choose when to extract CO2 from the environment. C4 plants are typically summer plants like corn and sugar cane.

Which step in photosynthesis does not need light?

The light-independent stage, also known as the Calvin Cycle, takes place in the stroma, the space between the thylakoid membranes and the chloroplast membranes, and does not require light, hence the name light-independent reaction.

Does oxidative phosphorylation require light?

The third type of phosphorylation to make ATP is found only in cells that carry out photosynthesis. In oxidative phosphorylation, the energy comes from electrons produced by oxidation of biological molecules. In photosynthesis, the energy comes from the light of the sun.

What oxidizes water in photosynthesis?

PSII is a multi-subunit membrane protein that acts as the first light-transducing complex in the redox pathway of oxygenic photosynthesis. It uses the energy of sunlight to oxidize water, producing dioxygen and protons, and reduces lipid-soluble plastoquinone.

Where does the water come from in photosynthesis?

Water is also a product of photosynthesis. This water is produced from the oxygen atoms in the carbon dioxide molecules. The oxygen molecules released into the atmosphere come exclusively from the original water molecules, not from the carbon dioxide molecules.

Why is Calvin cycle called C3 cycle?

The most common set of carbon fixation reactions is found in C3-type plants, which are so named because the major stable intermediate is the 3-carbon molecule, glyceraldehyde-3-phosphate. These reactions, best known as the Calvin cycle (Figure 6.2.

What is the Calvin cycle in photosynthesis?

The Calvin cycle is a part of photosynthesis, the process plants and other autotrophs use to create nutrients from sunlight and carbon dioxide. The Calvin cycle is a process that plants and algae use to turn carbon dioxide from the air into sugar, the food autotrophs need to grow. …

What is the process of photosynthesis step by step?

Photosynthesis Process Step by Step. By definition, photosynthesis is a process by which photoautotrophs convert the energy derived from the Sun into usable chemical energy. Light, water, chlorophyll , and carbon dioxide are the basic requirements for this process.

What is the overall process of photosynthesis?

Overall Process of Photosynthesis. The best‐understood reaction for the synthesis of glucose, and probably the most important quantitatively, is photosynthesis. Photosynthesis converts carbon from carbon dioxide to glucose with reducing equivalents supplied from water and energy supplied from light.

What is the end product of photosynthesis?

End result of the products of photosynthesis – definition Glucose: In plant cells, it is immidiately converted into the sucrose for transportation and stored in the form of starch. Water: It is reused by plant in the continuance of photosynthesis. Oxygen: Some of the oxygen diffuses out into the atmosphere and some are used by plants for respiration.

How does photosynthesis compare to respiration?

Photosynthesis and respiration are reactions that complement each other in the environment. They are in reality the same reactions but occurring in reverse. While in photosynthesis carbon dioxide and water yield glucose and oxygen, through the respiration process glucose and oxygen yield carbon dioxide and water.