Question

"The human body. It is an organism. It is made up of cells, tissues, organs, and organ systems," said Ms. Garcia to her students. "I can see tissues, my skin!" said Allie. "But how do I know I am made of cells too?" The students carried out an experiment to prove to Allie that they were indeed made of cells. Here is a photo of their lab activity. What did they do?

Responses
A They took a piece of the skin from their fingertips and looked at the tissue using a magnifying glass.They took a piece of the skin from their fingertips and looked at the tissue using a magnifying glass.
B They dissected their finger tips! They pulled off a piece of skin and looked at it with the dissecting scope.They dissected their finger tips! They pulled off a piece of skin and looked at it with the dissecting scope.
C They scraped the inside of their cheek and smeared the end of the toothpick on a glass slide. They added a drop of stain and then looked at the slide using the light microscope.They scraped the inside of their cheek and smeared the end of the toothpick on a glass slide. They added a drop of stain and then looked at the slide using the light microscope.
D They scraped the inside of their cheek and smeared the end of the toothpick on a glass slide. They added a drop of stain and then they used an IPhone to take a picture of the slide to share with the class.They scraped the inside of their cheek and smeared the end of the toothpick on a glass slide. They added a drop of stain and then they used an IPhone to take a picture of the slide to share with the class.
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Answer 1

C They scraped the inside of their cheek, smeared the end of the toothpick on a glass slide, added a drop of stain, and looked at the slide using the light microscope.

The students conducted an experiment to demonstrate to Allie that the human body is indeed composed of cells. In this experiment, they chose option C. They scraped the inside of their cheeks to collect cells, then smeared the end of a toothpick on a glass slide. To enhance visibility, they added a drop of stain to the slide, and finally, they examined the prepared slide under a light microscope.

This method allowed them to observe the individual cells present in the lining of their cheeks, providing tangible evidence of the cellular composition of the human body. The use of a light microscope facilitated a detailed examination of the cells, reinforcing the understanding that tissues, organs, and organ systems in the human body are ultimately comprised of individual cells.