The Dark Celled Apple- By: Keerthi Padmanabhan

Nov 07, 2016 • 10:03 AM UTC

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Kpanju

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I was just about to bite into a juicy red apple, when I saw a dark spot on the side. So, I foldscoped it. Here is how the apple looked:

When the apple was cut it looked like this

Once I inserted this sample in my foldscope, I viewed the healthy part of apple’s epidermis and noticed that it was vividly colored and had many visible cells. I used a wedge to focus the image.

After viewing the healthy apple epidermis sample, I viewed the cells of the apple that had gone necrosis( death of cells in living organism). I noticed that once the apple started to go through necrosis, the pigment changed from a pinkish color, to a yellow/ brown/ to black. Here are some pictures of what I saw:

Lastly, I saw the inside of the apple. I saw that the inside of apple was dark and was probably that way because of oxidization. Here is how it looked:

I learned a lot from doing this, and next time I reach for a fruit, I will look to see if there is something interesting and will definitely foldscope it if there is!