Vesicles transport materials within a cell. Vesicles are constantly forming, membrane-wrapped containers that transport things like protein through a cell.Know More
Vesicles that are artificially prepared are called liposomes. Naturally prepared vesicles are those made during exocytosis, endocytosis and phagocytosis. The membrane that encloses a vesicle is similar to the plasma membrane, and plasma membranes and vesicles can fuse together, making it possible to release the contents of the vesicle outside the cell.
Vesicles have various job functions. They aid in metabolism and enzyme storage and help control the balance inside and outside a cell. When vesicles malfunction, sometimes serious or fatal conditions may occur like diabetes and epilepsy.Learn more about Cells
In an embryo, one cell becomes a brain cell and another a skin cell through the process called cell differentiation, which involves changes in gene expression. The genome stays the same in each specialized cell, while each cell has a different structure and functions.Full Answer >
RNA is important to cells because it relays information encoded in DNA to tiny organs within the cell, called ribosomes, which produce protein according to the RNA's instructions. RNA is thus vital to the basic functioning of the cell.Full Answer >
A tomato cell is any cell from a tomato plant, though generally cells from the fruit rather than the roots or leaves are meant. Tomato cells are frequently used in lab classes to introduce biology students to the principles of microscopy and to familiarize them with plant cell anatomy.Full Answer >
Cell theory is the scientific theory that describes the properties of cells, primarily that the cell is the basic unit of life, and all living things are made of cells and all cells come from pre-existing cells. Modern cell theory is the result of centuries of research and experimentation facilitated by the invention of the microscope. Cell theory dispels the past myth of spontaneous generation or life coming from nothing.Full Answer >