Which of the Following Activities Is Associated With Photosystem Ii

By Bio_Amelia103 19 May, 2022 Post a Comment

A the force of air pressure because it pushes the water downward B the force of friction because it applies a downward pulling force on the water along the rough rocks C the force of magnetism at Earths core because it pushes the water downward D the force of gravity. In the following a brief description of the origin of plant PSI and PSII is presented.

Photosystem Ii An Overview Sciencedirect Topics

The PSI is made up of two subunits which are psaA and psaB.

. Are typically divided into families or groups depending on the chemical nature of the terminal electron acceptors. The system II primary charge separation remains intact when incubated with this agent in the dark with release of one of the system II Mn pools and. Reduction of primary electron accepter.

Hence ETC is not associated with Photosystem II. 4reduction of electron transport chain between the two Photosystems. Oxidation of electron transport chain between the two.

Which of the following activities is associated with photosystem II. 1 reduction of primary electron accepter. The main function of photosystem II is a synthesis of ATP and photolysis of water.

Light-induced conversion of water to molecular oxygen by Photosystem II PSII is one of the most important enzymatic reactions in the biosphere. C harvesting of light energy by chlorophyll. The light reaction of photosynthesis.

Subsequent harsher treatment with charged detergents and separation of the individual. Reduction of NADP plus. In addition to this most important activity PSII has additional functions especially in the regulation of light energy distribution.

B release of oxygenC harvesting of light energy by chlorophyll. It is involved in the oxidation of water. This splits the water molecule generating oxygen and hydrogen ions.

Photosystem II has a quinone type reaction centre. Water over the sloping ground and how does this force affect the water. Light energy excites electrons in the thylakoid membrane electron transport chain.

All of the following are directly associated with. Treatment of lamellar fragments with neutral detergents releases these particles designated photosystem I and photosystem II respectively. It is located in thylakoid membranes.

12 Which of the following activities is associated with photosystem II. A Light energy excites electrons in the thylakoid membrane electron transport chain. Which of the following processprocess is associated with Photosystem II PS II only r both PS II and PS I.

B Electrons released from the P680 chlorophyll are replaced by electrons derived from water. It has an associated antenna complex for light harvesting activity. The primary function of the photosystem I is in NADPH synthesis where it receives the electrons from PS II.

The electrons and hydrogen ions are used to power the creation of ATP and ultimately carbohydrates in later stages of photosynthesis. C The P680 chlorophyll donates a pair of electrons directly to NADP producing NADPH. Photosystem II PSII is a membrane protein complex which functions to catalyze light-induced water oxidation in oxygenic photosynthesis.

21 All of the following are directly associated with photosystem IIexcept A extraction of hydrogen electrons from the splitting of water. The PS II is made up of two subunits made up of D1 and D2. Illumination of chloroplasts in the presence of NH2OH 2 mm leads to the destruction of all system II activities without affecting system I.

B release of oxygen. It has a special oxidizable chlorophyll P680. Through the water-splitting reaction of PSII light energy is converted into biologically useful chemical energy and molecular oxygen is formed which transformed the atmosphere into an aerobic one and sustained aerobic life on the Earth.

Photosystem II features Which of the following is NOT true of photosystem II. 21 All of the following are directly associated with photosystem IIexcept A extraction of hydrogen electrons from the splitting of water. Electron Transport Chain or ETC is present in the inner mitochondrial which contains various enzymes and co-enzymes and act as hydrogen and electron carriers.

Light energy indicated by wavy arrows absorbed by photosystem II causes the formation of high-energy electrons which are transferred along a series of acceptor molecules in an electron transport chain to photosystem. The primary function of the photosystem II is in the hydrolysis of water and ATP synthesis. The most important function of photosystem II PSII is its action as a water-plastoquinone oxido-reductase.

Photosystem II is the site for oxidation of water When photosystem II is excited by absorption of a photon of light energy and expels an electron to the photosynthetic electron transport chain the oxidized form of the reaction center chlorophyll molecule is transiently created Chl. So the correct answer is Electron transport chain. The light reaction occurs in two photosystems units of chlorophyll molecules.

The structural and photochemical properties of the minimum particles capable of performing light reactions I and II have received much study. The main function of photosystem I is the synthesis of ATP. Electrons are passed from the P680 chlorophyll to molecular oxygen O2.

Photosystem II is the first step of photosynthesis where the chlorophyll molecule uses light energy to take an electron from a water molecule. The P680 chlorophyll donates a pair of electrons directly to NADP producing NADPH. 3 reduction of electron transport chain between the two Photosystems.

Brief Overview on the Evolution and Structure of the Plant Photosystem Reaction Centers. Photosystem II is involved only in non-cyclic photophosphorylation. Photosystem I is involved in cyclic and non-cyclic photophosphorylation.

At the expense of light energy water is split and oxygen and plastoquinol are formed. Enzymes and intermediates of the Calvin Cycle are in the chloroplast stroma a compartment somewhat analogous to the mitochondrial matrix. Photosystem II has active center P680.

Hence options A reaction centre ATP NADPH and Water are associated with Photosystem II. Which of the following process is associated with Photosystem II PS II only or both PS II and PS I. Reduction of NADP plus.

Photosystem Ii An Overview Sciencedirect Topics