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# All Cells Are Fundamentally the Same for Organisms Biologists classify and categorize all lifeforms to understand their positions in the hierarchy, and similar species contain cells with the same chemical composition. Energy flows through biochemical reactions within cells, culminating in metabo...

# All Cells Are Fundamentally the Same for Organisms Biologists classify and categorize all lifeforms to understand their positions in the hierarchy, and similar species contain cells with the same chemical composition. Energy flows through biochemical reactions within cells, culminating in metabolism, with photosynthesis as a key example where plant cells convert light energy into chemical energy. ## Developed By Mr. Jose Mari D. Carreon, 2023 ## Validated By J. Bactad, C. Fernandez, F. Marcelo, L. Mendoza, W. Silva, A. Wilson, 2024 ## References - 96. ANTONIE van LEEUWENHOEK (n.d.). SAPAVIVA. [https://www.sapaviva.com/antonie-van-leeuwenhoek/](https://www.sapaviva.com/antonie-van-leeuwenhoek/) - Brenner, L. (2014). What Was the Major Contribution of Matthias Schleiden to Microbiology?. Sciencing. [https://sciencing.com/what-was-the-major-contribution-of-matthias-schleiden-to-microbiology-12731412.html](https://sciencing.com/what-was-the-major-contribution-of-matthias-schleiden-to-microbiology-12731412.html) - Encyclopaedia Britannica. (2019). Robert Brown | Scottish botanist. In *Encyclopædia Britannica*. [https://www.britannica.com/biography/Robert-Brown-Scottish-botanist](https://www.britannica.com/biography/Robert-Brown-Scottish-botanist) - Matthias Jakob Schleiden. (2019, April 5). The Daily Gardener. [https://thedailygardener.org/matthias-jakob-schleiden/](https://thedailygardener.org/matthias-jakob-schleiden/) - Lam, P.K. & Lam, E.Y.K. (2014). Biology Matters. GCE "O" level (2nd ed.).. Marshall Cavendish Education. - Robert Hooke (n.d.). goodreads. [https://www.goodreads.com/author/show/826340.Robert_Hooke](https://www.goodreads.com/author/show/826340.Robert_Hooke) - The Royal Society. (2010, December 3). Hooke, Newton, and the "missing" portrait. Royal Society. [https://royalsociety.org/blog/2010/12/hooke-newton-and-the-missing-portrait/](https://royalsociety.org/blog/2010/12/hooke-newton-and-the-missing-portrait/) - Thomas, T. A. (2017). Theodor Schwann: A founding father of biology and medicine. Current Medical Issues, 15(4), 299. [https://doi.org/10.4103/cmi.cmi_81_17](https://doi.org/10.4103/cmi.cmi_81_17) - Underwood, E. A. (2018). Rudolf Virchow | German scientist. In Encyclopædia Britannica. [https://www.britannica.com/biography/Rudolf-Virchow](https://www.britannica.com/biography/Rudolf-Virchow) - 96. ANTONIE van LEEUWENHOEK (n.d.). SAPAVIVA. [https://www.sapaviva.com/antonie-van-leeuwenhoek/](https://www.sapaviva.com/antonie-van-leeuwenhoek/)