Photoautotrophs are organisms, typically a plant, that obtains energy from the sun to be able to convert inorganic materials to organic materials for cellular functions to take place such as biosynthesis and respiration. Its function is increased by the presence of the three types of pigments namely chlorophyll A and B and carotenoids because these are "enablers" of photosynthesis.
The chlorophyll serves as the stepping stone for the sunlight "energy-capture" . This pigment contains porphyrin ring through which electrons can freely to move. Since they move freely, the ring has the ability to gain or lose electrons easily thus they also have the ability to provide energized electrons to other molecules.
However, the carotenoids are accessory pigments only because they cannot directly transfer the energy from the sun to the photosynthetic pathway which means that the absorbed energy must be passed on to chlorophyll first.
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Transverse waves are made of oscillations
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Definition of Exergonic Reaction
An exergonic reaction is a reaction that releases free energy. Because this type of reaction releases energy rather than consuming it, it can occur spontaneously, without being forced by outside factors.
In chemistry terms, exergonic reactions are reactions where the change in free energy is negative. Free energy measures the total amount of energy available in a system; negative changes mean that energy has been released, while positive changes mean that energy has been stored.
Exergonic reaction
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The correct answer would be B. fatty acids, DNA.
The other options show the pairing of polymer and their monomer units.
For example, proteins are the polymers of amino acids, starch is polymer made up of several glucose units.
Similarly, DNA or deoxyribonucleic acid is a double stranded molecule made up of nucleotides (not fatty acids) attached via phospho-di-ester bond.
The nucleotide is consisted of deoxyribose sugar, a nitrogenous base, and phosphorus group.
Thus, fatty acids and DNA make the inappropriate pairing as compared to other options.
