Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on:
- Proton gradient
Accumulation of K+ ions
Accumulation of Na+ ions
- Membrane potential
The Correct Option is A
Solution and Explanation
According to this theory, a proton (H+) gradient or proton motive force is established across the inner mitochondrial or thylakoid membrane, and ATP is synthesized as protons flow back through ATP synthase enzymes, driving the phosphorylation of ADP to ATP. This proton gradient is established through the electron transport chain during the process of oxidative phosphorylation in mitochondria and photophosphorylation in chloroplasts.
So, the correct option is (A): Proton gradient
Top Questions on Photosynthesis in higher plants
- Choose the correct sequence of no. of molecules formed when 6 mol of CO\textsubscript{2 enters into calvin cycle pathway}
- AP EAPCET - 2025
- Botany
- Photosynthesis in higher plants
- Choose the correct statements among the following
I. Proton gradient across the membrane decreases due to cyclic flow of electrons between PQ and cytochrome b.
II. NADP reductase enzyme is located on the stroma side of the membrane.
III. PQ removes electron from the stroma- AP EAPCET - 2025
- Botany
- Photosynthesis in higher plants
- Number of ATP and NADPH required to make one triose through Calvin cycle.
- AP EAPCET - 2025
- Botany
- Photosynthesis in higher plants
- Choose the correct statements among the following
I. Joseph Priestley (1770): Showed that plants have the ability to take CO2 from the atmosphere and release O2.
II. Jan Ingenhousz (1779): Release of CO2 by plants was possible only at night and only by the non-green parts of plants.
III. Julius Von Sachs (1884): Green parts in plants produce glucose which is stored as starch.
IV. C. Van Niel (1931): Photosynthesis is essentially a light dependent reaction in which hydrogen from an oxidizable compound reduces CO2 to form carbohydrates.
Correct statements: I, III, IV- AP EAPCET - 2025
- Botany
- Photosynthesis in higher plants
- Choose the incorrect statement among the following
- AP EAPCET - 2025
- Botany
- Photosynthesis in higher plants
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A full wave rectifier circuit with diodes (\(D_1\)) and (\(D_2\)) is shown in the figure. If input supply voltage \(V_{in} = 220 \sin(100 \pi t)\) volt, then at \(t = 15\) msec:
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Concepts Used:
Aerobic respiration
It is the release of a relatively large amount of energy in cells by the breakdown of food substances in the presence of oxygen:
Glucose + Oxygen → Carbon Dioxide + Water.