Vacuole

Length: 6 Pages 1620 Words

Cells are the basic building blocks of all living things. All cells are small 'sacks' composed mostly of water. There are millions of different types of cells, but they are divided into two main groups. The first group, Prokaryotes, is made up of very small cells that have no membrane around their nucleus and no organelles with membranes. Prokaryotes include bacteria and are the most common type of cell. The second group of cells is called Eukaryotes. There are many different types of Eukaryotes, but all types share some characteristics. The basic eukaryotic cell has a cell membrane which is also known as a plasma membrane. It has a nucleus, cytoplasm, a cytoskeleton, and membrane-covered organelles. The organelles inside a cell have special jobs that let the cell function like it is supposed to. Each type of organelle has its own individual shape and size. The number of organelles that a specific cell contains depends on what function the cell performs. An example of this would be a cell that uses up a lot of energy would have many mitochondria. Some cells have organelles that other cells do not have. An example of this is the chloroplast in the plant cell. Animal cells do not have chloroplast. Some organelles are very differen Continue...


More sample essays on Vacuole

    Cell Theory
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ukreferencesencyclopaediahutchinsonm0015140. Cell sap is made up of a watery solution of salts and sugars that are kept at relatively high concentrations because of the movement of ions through the vacuole membrane. Food vacuoles are the most basic digestive compartments. Plants store these ions for later use. In the animal cell, the vacuoles are small spaces inside the cell which contain the necessary things for the cell to grow and reproduce. Contractile vacuoles are a special kind of vacuole whose main job is to pump water and other substances out of a cell to prevent the cell from bursting.

PROFESSIONAL ESSAYS:

Biochemistry Osmosis is the process of diff
projections of the plasma membrane, around them and packaging them within a membrane-enclosed sac large enough to be classified as a vacuole (Langara). (2429 10 )

Osmosis Osmosis is the process of diff
projections of the plasma membrane, around them and packaging them within a membrane-enclosed sac large enough to be classified as a vacuole (Langara). (2432 10 )

Two Science Lessons 1. The primary structure of proteins I
The high concentration of the nutrients in the vacuole significantly increases diffusion rates, and decreases cytoplasmic volume. (1900 8 )

Cell Division in the Organism Saccharomyces Cerevisiae
Characterization of synthetic-lethal mutants reveals a role for the Saccharomyces cerevisiae Guanine-Nucleotide Exchange factor Cdc24p in vacuole function and (2535 10 )