Table of Contents
What are the reactants of the dark reaction?
Dark reactions occur in the grana of chlorophyll,and get energy from ATP and NADPH. The reactants are water and carbon dioxide.
What are the 3 products of the dark reactions?
Difference between Light and Dark Reaction
Light Reaction | Dark Reaction |
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The end products are ATP and NADPH. | Glucose is the end product. ATP and NADPH help in the formation of glucose. |
The water molecules split into hydrogen and oxygen. | Glucose is produced. Co2 is utilized in the dark reaction. |
What are the requirements of the dark reactions?
The series of biochemical reactions in photosynthesis that do not require light to proceed, and ultimately produce organic molecules from carbon dioxide. The energy from ATP (produced during the light reactions) drives the dark reactions of photosynthesis.
What is the significance of dark reaction?
During dark reaction, energy released from ATP, NADPH (products of the light reaction) drives the fixation of carbon from carbon-dioxide in the carbon compound (carbohydrates). The fact that non-photochemical process (dark reaction process) is involved in the photosynthesis was established by Blackman (1905).
What are the products and reactants of the Calvin cycle?
The Calvin Cycle uses the NADPH and ATP from the Light Reactions to “fix” carbon and produce glucose. Carbon dioxide enters the Calvin Cycle when Rubisco attaches it to a 5-carbon sugar. Most plants fix CO2 directly with the Calvin Cycle, so they are called C-3 plants.
Which products are made in the dark reaction?
The dark reaction of photosynthesis includes series of assimilatory reactions that fix carbon dioxide into organic compounds using the energy of ATP and NADPH + H+ produced during light reactions.
What is dark reaction in chemistry?
: any of a series of chemical reactions in photosynthesis not requiring the presence of light and involving the reduction of carbon dioxide to form carbohydrate especially : calvin cycle.
What are the important events and end products of the light reaction?
Answer: The important events of light reaction are (i) Excitation of chlorophyll molecule to emit a pair of electrons and use of their energy in the formation of ATP from ADP + Pi. This process is called photophosphorylation. Splitting of water molecule (a) (b) End products of light reaction are NADPH and ATP.
What is the relation between light reaction and dark reaction?
Complete answer:
Light reaction | Dark reaction |
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It involves the absorption of light energy and its conversion into chemical energy in the form of ATP and NADPH and hydrogen ions. | It utilizes ATP and NADPH 2 for the fixation of carbon dioxide to form carbohydrates, mainly glucose. |