The first end-product of photosynthesis was this 3-carbon chain, this glyceraldehyde 3-phosphate. (more on Photosynthesis Pigments . (3 points) Which of the following chemical equations represents photosynthesis? Photosynthesis reaction involves two reactants, carbon dioxide and water. The reactants of photosynthesis are water, light and carbon dioxide, while the products are oxygen and sugars. source and fate of the reactants and products. The principal product of photosynthesis (sugar) is a high-energy molecule, but the reactants (carbon dioxide and water), are low-energy molecules, so the process of photosynthesis needs an energy source to drive it. Abstract. Photosynthesis Research, Vol. Cellular respiration occurs in direct synchronicity with this process, using the products of photosynthesis as its reactants and producing its reactants. 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 I. Photosystem II obtains replacement electrons from water molecules, resulting … How linear electron flow in the light reactions results in the formation of ATP, NADPH, and O 2. 2. There are two main photosystems; photosystem I (PS I) and photosystem II (PS II), present in the thylakoid membranes of chloroplasts in plants. There are two photosystems, PS I and PS II. Predict the products and leftovers after reaction, based on the quantities of reactants and ratios of molecules in the balanced chemical equation. Each photosystem is made of two components: 1) antenna complex that consists of 300-400 chlorophyll a … The second part of the reaction is the oxidation of water to produce oxygen, carried out by photosystem II (PSII). Accordingly, plants essentially need both these photosystems. The function of the light-dependent reaction is to convert light energy into chemical energy within a multi-protein complex called the photosystem, found in the thylakoid membranes. It is because the stripping electrons from water require more energy than light-activated photosystem I can supply. ATP. Back to Project Page Kim's Pg Leah's Rod's Page (Photosynthesis )is a process in which light energy is trapped and converted into chemical energy by colored compounds (pigments) such as chlorophylls, carotenoid, and xanthophylls. (2) During this process, ATP is generated by the Photosystem II electron transport chain and chemiosmosis. These two reactants yield two products, namely, oxygen and glucose. Photosystem II was discovered after Photosystem I. 4 moles O b. 2. Photosystem II (PSII) is a membrane protein complex which functions to catalyze light-induced water oxidation in oxygenic photosynthesis. 2). The light-dependent reactions involve two photosystems called Photosystem I and Photosystem II.These photosystems include units called antenna complexes composed of chlorophyll molecules and accessory pigments located in the thylakoid membrane.Photosystem I contain chlorophyll a molecules called P700 because they have an … It is located in the thylakoid membrane of plants, algae, and cyanobacteria. Consequently, … question O a. 2.07 ASSESSMENT: The Reactants and Products of Photosynthesis (40pts) 1. . Definition. The main pigment in photosynthesis is called chlorophyll. Term. Circle the letter of the carrier molecule involved in photosynthesis. Photosystems are a collection of chlorophyll molecules, accessory pigment molecules, proteins and small organic compounds. One part of the reaction is the reduction of NADP+ to NADPH, carried out by photosystem I (PSI). 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