Which one of the following concerns photophosphorylation:
\(ADP+AMP\ \ ^{\underrightarrow{Light \ Energy}} \ \ ATP\)
\(ADP+Inorganic\ PO_4\ \ ^{\underrightarrow{Light \ Energy}} \ \ ATP\)
\(ADP+Inorganic \ PO_4\) \(\longrightarrow\) \(ATP\)
\(AMP+Inorganic\ PO_4\ \ ^{\underrightarrow{Light \ Energy}} \ \ ATP\)
The Correct Option is B
Solution and Explanation
During photophosphorylation, ADP (adenosine diphosphate) and inorganic phosphate \((PO_4)\) are combined to form ATP (adenosine triphosphate) using the energy from light.
So, the correct option is (B): \(ADP+Inorganic\ PO_4\ \ ^{\underrightarrow{Light \ Energy}} \ \ ATP\)
Top Questions on Photosynthesis in higher plants
- Identify the wrong statements from the following:
I. DNA polymerase has capability of catalysing the process of elongation of polypeptide chain
II. In splicing, introns are removed and exons are joined
III. In capping, methyl guanosine triphosphate is added to the 5\textsuperscript{' end of hnRNA
IV. In tailing, adenylate residues are added at 5\textsuperscript{' } end }- TS EAMCET - 2025
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- Photosynthesis in higher plants
- Study the A, B and C equations given below and identify the correct match.
A. C6H12O6 + 2NAD + 2ADP + 2Pi → 2C2H4O3 + 2ATP + 2NADH + 2H+
B. Pyruvic acid + 4NAD + FAD + 2H2O + ADP + Pi → 3CO2 + 4NADH + 4H+ + ATP + FADH2
C.
- TS EAMCET - 2025
- Botany
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- Final acceptor of electrons in light reaction:
- TS EAMCET - 2025
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- The length of DNA is 510 Å. It has 20% of 6-aminopurines. Find out the total number of nucleotides and total hydrogen bonds in that DNA:
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Which of the following is responsible for the production of oxygen during photosynthesis?
A. Calvin cycle
B. Photolysis of water
C. Cyclic photophosphorylation
D. Reduction of NADP+- MHT CET - 2025
- Biology
- Photosynthesis in higher plants
Questions Asked in NEET exam
- Given below are two statements:
Statement I: The DNA fragments extracted from gel electrophoresis can be used in the construction of recombinant DNA.
Statement II: Smaller size DNA fragments are observed near the anode while larger fragments are found near the wells in an agarose gel.- NEET (UG) - 2025
- Molecular Biology
Given below are two statements:
Statement I: Transfer RNAs and ribosomal RNA do not interact with mRNA.
Statement II: RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defence.
In the light of the above statements, choose the most appropriate answer from the options given below:- NEET (UG) - 2025
- RNA interference
- Given below are two statements: Statement I: In the RNA world, RNA is considered the first genetic material evolved to carry out essential life processes. RNA acts as a genetic material and also as a catalyst for some important biochemical reactions in living systems. Being reactive, RNA is unstable.
Statement II: DNA evolved from RNA and is a more stable genetic material. Its double helical strands being complementary, resist changes by evolving repair mechanisms. In the light of the above statements, choose the most appropriate answer from the options given below:- NEET (UG) - 2025
- Structure of DNA and RNA
- A microscope has an objective of focal length \(f_o = 2\) cm and an eyepiece of focal length \(f_e = 4\) cm. The tube length of the microscope is \(L = 40\) cm. If the distance of distinct vision of eye is \(D = 25\) cm, the magnification in the microscope is:
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- Optical Instruments
- Two gases A and B are filled at the same pressure in separate cylinders with movable pistons of radii \(r_A\) and \(r_B\) respectively. On supplying an equal amount of heat to both the cylinders, their pressures remain constant and their pistons are displaced by 16 cm and 9 cm respectively. If the change in their internal energies is the same, then the ratio \(r_A / r_B\) is:
- NEET (UG) - 2025
- Thermodynamics
Concepts Used:
Electron Transport System
The electron transport chain or system is the sequence of electron carriers, enzymes, and cytochrome that passes electrons from one to another through the redox reaction. It is electron transport-linked phosphorylation.
It contains flavin nucleotides (FAD), nicotinamide adenine dinucleotide (NAD), coenzyme Q, and cytochromes localized in F1 particles of mitochondria. It occurs in the inner mitochondrial membrane along with cristae.
In this process five (5) complexes are involved namely, I- NADH-UQ reductase, II- Succinate-UQ reductase, III- UQH2 -cytochrome C reductase, IV- Cytochrome C oxidase, and V is connected with F0−F1 particles.
In this process, NAD and FAD are minimized.
Steps:
- Redox at complex I: Four (4) protons are pumped from the matrix to intermembrane space.
- Redox at complex II: Coenzyme Q collects the electrons from complex I and II, and goes to complex III.
- Redox of complex III: Four (4) protons are again pumped from matrix to intermembrane space and cytochrome C transports electrons to the complex IV.
- Redox of complex IV: Two (2) protons are pumped from the matrix to intermembrane space and the formation of water occurs in the matrix.
- ATP synthase action: It pumps protons from intermembrane space to matrix and generates ATP. It is associated with oxidative phosphorylation.