each of which is composed of a light-harvesting (antennae) complex and a reaction center. Thelight-harvesting complexconsists of multiple proteins and associated pigments that each may absorb light energy and, thus, become excited. This energy is transferred from one pigment molecule to another unt...
The protons and electrons are then transferred through the thylakoid membrane to create the energy storage molecules adenosine triphosphate (ATP) and nicotinomide–adenine dinucleotide phosphate (NADPH). The ATP and NADPH are then utilized by the enzymes of the Calvin–Benson cycle (the dark ...
Photosynthesis sustains virtually all life on planet Earth providing the oxygen we breathe and the food we eat; it forms the basis of global food chains and meets the majority of humankind9s current energy needs through fossilized photosynthetic fuels. The process of photosynthesis in plants is base...
Photosynthesis is used by many autotrophic organisms, including plants, algae, and cyanobacteria, to produce energy. This metabolic process takes in energy from sunlight and uses it to synthesize glucose. Answer and Explanation: The correct answer is (b) endergonic. Endergonic reactions take in...
Ultimately, light energy must be transferred to a pigment-protein complex that can convert it to chemical energy, in the form of electrons. In plants, light energy is transferred to chlorophyll pigments. The conversion to chemical energy is accomplished when a chlorophyll pigment expels an electron...
To avoid charge recombination, which would convert the electrochemical energy of P680•+PheoD1•–into heat instead of storing it in chemical bonds, the primary charge separation needs to be stabilized by subsequent electron transfer steps that increase the distance and reduce the energy difference...
By anabolic, we mean the photosynthesis process “utilizes energy to build biomolecules” like carbohydrates, starch, and sugars. These biomolecules are further utilized by both the plants and the organisms dependent on plants for their nutritional needs. On the other hand, respiration is a catabolic...
transport chain, aided by the enzyme ATP synthase. Energy is lost as the excited electron drops to lower energy levels. Energy from electrons is transferred toadenosine triphosphate (ATP)and reduced nicotinamide adenine dinucleotide phosphate (NADPH), commonly referred to as "energy currency" of ...
The energy of photosynthesis comes from light The action spectrum of photosynthesis Phase One: The light-dependent reactions Photosystem II Photosystem I Phase Two: The Calvin-Benson Cycle This linear path is called noncyclic electron transport. However, not allelectronsflow in this linear path. Some...
The energy that reaches the end of the electron transport chain is transferred to the P700 chlorophyll in the reaction center of PsI where it replaces the electrons lost by P700 to the PsI electron transport chain. Photosystem I actions. PsI is structurally similar to PsII and does part of ...