Human Cell

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Categories: Skillbook Glossary

What? –Humans are all made up of cells.

Why? History Human cells are different sizes but even the largest one is too small to see with the naked eye. Cells make up the body and its organs. A cell is the smallest unit of life that can replicate independently. The human body is made up of trillions of cells.

How does it relate to the skin? Every system in our bodies is made up of cells. Cells make up tissues and tissues make up organs. The skin is the largest organ in the human body. Epithelial tissue known as skin covers the body and is also inside of the body. Humans contain for that 10 trillion cells in the body and are a fundamental unit and structure of all living things. There are these cells called melanocytes. These cells produce melanin which means they are pigmented and they determine the skin color.

Where does it typically occur? – At the cellular level, skin cells are called epithelial cells. Cells are throughout the whole body and in the organs. Cells only come from preexisting cells and all cells contain hereditary information (DNA) that is necessary for regulating cell functions and transmitting information to the next set of cells. Cells can occur anywhere on the body. Skin is the largest organ and it’s a barrier from the outside world. Like stated in the last answer, There are cells called melanocytes that determine the skin color.

When? Implications – Work done inside the cell is caused by enzymes. Each organelle of a cell has a distinct function. Cells have many different functions in the body one being the carrying of blood and oxygen to different organs. There are prokaryotic and eukaryotic cells. The prokaryotic are bacteria and archaea. Eukaryotic cells make up plants and animals. We all started as one cell. Then that cell divided into two, then that cell into four, and so on. This process is called mitosis.

Who benefits from this? –All humans. Stem cells can come from both plants and animal cells and play a big role in anti-aging of skin cells. Cells are the basic building blocks of all living things therefor humans, plants and animals all benefit from cells. Without cells the human race would cease to exist and so would every other living thing. Cells are what make up everything on planet earth. Cells are the building block of life, so without them, none of would be here.

What causes this? –The human body has about 10 trillion cells all operating differently. Cells are group together to form tissues, organs and systems. The human cell has a membrane that has receptors that identify the cells to the other cells. There are many different parts that make up the cell. For example the nucleus which is the brain of the cell and holds all of the DNA and information that the cell needs. The human body is made up of trillions and trillions of cells. Each cell operates differently. One set of cells are called melanocytes, and they determine the skin color, another set of cells is called keratinocytes and that produces a protein called keratin. Keratin is in your skin, hair, nails, and so forth.

How? (Solutions) Mechanical/ Machine – Machines can change the human cell. Scientists found that cells that containing a synthetic form of the substance myosin could be changed depending on the amount of this synthetic myosin. This means that myosin is not the only thing that can controls the cell shape change during cell division. Receptors react to different substances in the body as well as drugs taken into the body. The cell was discovered by Robert Hooke in 1665 and the cell theory was developed in 1839. A cell can only be viewed under a microscope. Cells are basically little computers. Researchers found out that cells are very complicated and the DNA doesn’t have an on and off switch.

How? (Solutions) Non Mechanical – UVA & UVB light can change the structure of the cell. UVB light changes the structure of the DNA strand in the cell. It can alter the chemicals in the cell. When chemicals are altered in the cell it can cause issues in the body and on the skin. For example, cancer is when cells are mutated and are rapidly growing. There are a couple of different UV’s. The UVA and UVB lights can actually change the cell structure and eventually turn into cancer.

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