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Photosynthesis Lab Report

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Photosynthesis and respiration are “reversible” because both are apart of energy flow and chemical recycling in the ecosystem. Light energy, carbon dioxide, and water are gathered for the first stage of photosynthesis which is called light reaction. The second stage of photosynthesis called the Calvin cycle produces glucose, oxygen, and other organic molecules. The products of photosynthesis are then used in the mitochondria to break down glucose, oxygen, and organic molecules which releases ATP, heat energy, carbon dioxide, and water. As ATP and heat energy is used to perform work, carbon dioxide and water is used to carry out photosynthesis resulting the cycle to repeat. The placement of energy on one side of the equation affects the …show more content…

The “like dissolves like” expression also applies to the reason why pigments travel further up the chromatography paper. The chromatography paper pulls the solvent of acetone up the paper by capillary action, then the mixture of pigments is dissolved as the solvent of acetone moves over it. The different components travel upwards at different rates, which can result some compounds with greater solubility to travel farther than compounds with less solubility. Finally, the pigments with greater solubility show color streaks on the chromatography paper. Therefore chromatography paper is polar because the polar molecules being tested are attracted to other polar molecules in order for the color streaks to last unlike non-polar molecules which will dissolve in other non-polar …show more content…

On the other hand leaf colors have red, yellow, and orange pigment are outcomes of carotenoids; blues, violets, pinks, purples, and dark reds are made from anthocyanins. The conclusions students made were somewhat correct as they finished the experiment. The only row students got correct was that there is starch present in chlorophyll pigment, where as the other rows students got wrong. Students thought a positive or negative sign must written in the predicted column causing them to be wrong about the actual results. Lastly the carotenoids pigment it was positive that starch should be present but the assumption of starch is present was found to absent in the colored region of the

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