Single-Cellular Transport

Task 2a:
A system of transport is found within most multi-cellular organisms enabling the growth of these organisms to be greater than those single-cellular organisms. The transport system enables the rapid delivery of nutrients and oxygen as well as the removal of waste products such as carbon dioxide from all the cells within the body in order for them to survive. All cells within the body require the intake of substances from the environment and the removal of any unwanted substances. Within a single-cellular organism this process can happen alone through diffusion this is due to the fact that the cells are far from the surface and therefore the gases don’t take long to diffuse from the cell surface membrane to the centre of the cell or vice versa additionally single-cellular organisms have a larger surface area in comparison to its total volume. Whereas in multi-cellular organisms diffusion is no longer sufficient as the centre of the organism is further away from the surface and therefore would take the substances too long to diffuse from there additionally in comparison to single-cellular
Multicellular organisms are comprised up of different types of specialised cells which are adapted to enable them to carry out specific functions. Muscle cells and epithelial cells are two examples of specialised cells within the body that are adapted for specific functions. Multicellular organisms such as mammals, the cardiovascular system is the main transport system. This particular system is powered by the heart and relies on the blood in order to transport substances such as oxygen and carbon dioxide around the body through a network of blood vessels including the veins, arteries and capillaries, the veins and arteries serve the main function of transporting blood throughout the body and arteries enabling the substances to through to the cells due to their walls being