Cell Structure and Function

CELL STRUCTURE AND FUNCTION All living things are made of the same basic building blocks, cells. A human is made of 65 trillion cells. Cells are everywhere, on you skin, in your blood, and even on your tongue. In fact, your blood is clear but red blood cells are what make your blood red. Most living things are made up of many cells but some are made of only one cell, like amebas, paramecium, fungi, protists, …

…while others have very complicated systems of many cells working together. Second, plant and animal cells take in food, water, and oxygen in very different ways, but both need these substances to make the energy needed to live, grow, and reproduce. Finally, every cell passes on their DNA to future generations through the process of mitosis. The DNA, in both plant and animal cells, contains all the instructions needed for cell to grow and function.