Compare and Contrast A plant Cell and an Animal Cell


There are many differences as well as similarities between plant cells and animal cells. First we will compare them. The cells of animal and plants have three basic structures. The first is they both contain cell membranes, which is also called the outer boundary of the cell. They also each have a nucleus, or control center. Cytoplasm is found in between the cell membrane and the nucleus of each cell also. They both also contain ribosomes, where the protein in the cell is made. Although they share many similarities, they are very unalike in dramatic ways.


To begin to contrast them, let me begin by saying they each are found in different things, obviously. The plant cell is located inside plans, as the animal cell is located inside animals (and people). The plant cell has an extremely larger vacuole than the animal cell. Vacuoles serve the purpose of storing water, salts, proteins and carbohydrates. In plant cells, the vacuole is usually filled with liquid. The pressure of the liquid filled vacuole in these cells makes it possible for the plant to grow quickly and support heavy structures such as leaves and flowers. The next difference is that the plant cell contains a cell wall and the animal cell just contains a cell membrane. The cell wall lies outside of the cell membrane. The cell wall helps to protect and support the cell. The cell wall has a lot of pores, so water, oxygen, carbon dioxide and things like that can pass through easily. The last major difference is that plant cells have chloroplasts, which make it possible for the plant to perform photosynthesis. This is because chloroplasts are organelles that convert sunlight into chemical energy. These contain the principle pigment in the cell that captures the light energy, as well as help it with its green color (the plant). As you can see, the plant and animal cells have many differences, yet if you think about it, they are all cells and parts of our daily life.


" We have studied both genetics and evolution in the past several weeks. Explain why evolution and genetics are so closely related."


The process by which modern organisms have descended from ancient organisms is the process of evolution. Genetics is the branch of biology that studies heredity, and heredity is the passing of traits from parents to their young. Evolution wouldnít make sense if we didnít know anything about genetics. Therefore, you can see how closely related they are because they go ďhand in handĒ.


When I refer to ďhand in handĒ, I mean that in order to understand evolution, you need to understand the whole process. During the process of evolution, you read about how numerous scientists think animals acquired the traits that they have, for example, why the giraffe has such a long neck, or why ducks have webbed feet. One way you could look at this, is that the traits donít just grow on these animals. They are passed on from parent to offspring. That is the genetics, the whole idea of it. That in itself is the process of heredity. That is how evolution and genetics are closely related.