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Imaging the structure of a flower petal

| Fri, May 19, 2023, 3:56 PM



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I was curious about whether petal cells were similar to leaf cells and how they get their pigment. I wanted to know what are the characteristics of cells in the petals of a flower and if petals contained a single type of cells or multiple cells and vasculature like leaf cells. So, I collected the the petals of a small pink flower growing outside my dorm, took samples from the petals collected, and observed them under the Foldoscope. I found that the petals seemed to contain a homogeneous set of cells. Most cells were similar in shape and size and closely and densely packed together, akin to a leaf. However, unlike a leaf, the cells were amorphous in shape as opposed to the block-shaped cells in leaves. The cells were also pink in color and although it was difficult to observe what was behind this color, it may have been some of the small molecules in cellular organelles like chromoplasts (similar to the green chloroplasts in leaves) or cell vacuoles. Pertaining to the cell types in the petal, although most cells looked the same in terms of shape, size and color, there was also a group of cells that were translucent or lacked color, and formed what looked like a vein (evident in the picture), indicating that flower petals could have vasculature. Overall, it was evident that flower petals consist of a single cell-type (apart from the vascular cells), and most cells contain pigment-providing organelles or small molecules. The cellular structure of a petal is not as complex as that of a leaf, and that is understandable, considering that flower petals don’t have to perform photosynthesis and respiration, and just need to have pigmented cells to attract pollinators. 



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Type of Sample
plants
Foldscope Lens Magnification
140x

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