At a fundamental level, water provides electrons to replace those removed from chlorophyll in photosystem II. Also, water produces oxygen as well as reduces NADP to NADPH (required in the Calvin cycle) by liberating H+ ions
During the process of photosynthesis, six molecules of carbon dioxide and six molecules of water react in the presence of sunlight to form one glucose molecule and six molecules of oxygen. The role of water is to release oxygen (O) from the water molecule into the atmosphere in the form of oxygen gas (O2).
Water also has another important role of being an electron feeder. In the process of photosynthesis, water provides the electron that binds the hydrogen atom (of a water molecule) to the carbon (of carbon dioxide) to give sugar (glucose).
Water acts as a reducing agent by providing H+ ions that convert NADP to NADPH. Since NADPH is an important reducing agent present in chloroplasts, its production results in a deficit of electrons, resulting from oxidation of chlorophyll. This loss of electron must be fulfilled by electrons from some other reducing agent. Photosystem II involves the first few steps of the Z-scheme (the diagram of the electron transport chain in photosynthesis) and therefore a reducing agent that can donate electrons is required to oxidize chlorophyll, which is provided by water (acting as a source of electrons in green plants and cynobacteria). Hydrogen ions thus released create a chemical potential (chemiosmotic) across the membrane that finally results in synthesis of ATP. Photosystem II is the primary known enzyme that acts as catalyst in this oxidation of water.
Answer:
socially defined pattern of behavior that is expected of a person in a given setting or group
Explanation:
Social role: In social psychology, the term "social role" is described as a specific set of rights, beliefs, behaviors, norms, as they are being conceptualized by different people in a particular social situation. In other words, it states the behaviors, expectations, and responsibilities an individual ought of adopting in a few specific situations. However, an individual's normal or expected behavior is being reinforced by the individual itself and society.
Answer: Te ayuda a adquirir los conocimientos necesarios para poder ejercerla. Si es como valor, ayuda a saber como manejarse con los demas.
Explanation:
Primero hay que definir de que tipo de educacion hablamos. Si hablamos de educacion como la forma de enseñanza, es necesario tener educacion para poder ser capaces de ejercer una carrera profesional ya que la educacion es la llave del conocimiento.
Ahora bien, si hablamos de educacion como un valor, este es sumamente importante. Cuando una persona tiene educacion es alguien que sabe como dirigirse a los demas, no pierde la cordura y siempre mantiene el respeto. En una carrera profesional no solo es cuestion de adquirir conocimientos sino de tener una parte humana para tratar a los demas de la forma adecuada.
Answer:
I found it funny that Joseph Stalin is here, but <em><u>It's going to be Winston Churchill</u></em> because he was the only one alive while George Washington was alive.
Explanation:
Winston was from Britain and all that colonial war shenanigans.
<em>literally everyone else from answers A to C didn't even exist in this time period, this is a hilariously easy question to answer.</em>
The correct answer is C. To perform as an international platform for discussions.
Explanation:
The United Nations is an international organization created after the Second World War to prevent conflicts between nations. Due to this, one of the main objectives of this organization is to act as a mediator between parties or countries that have a conflict. This includes the creation of international platforms for discussions that allow parties involved in a conflict to find conflict resolutions or peace treaties. In this way, the United Nations prevents any future wars and promotes cooperation between countries. Thus, one of the ways the United Nations maintain international peace is by acting as an international platform for discussions (Option C).
