Question

State the function of the following components pf transport system
A) blood
B)xylem

Answer 1

A)Blood, fluid that transports oxygen and nutrients to the cells and carries away carbon dioxide and other waste products. Technically, blood is a transport liquid pumped by the heart (or an equivalent structure) to all parts of the body, after which it is returned to the heart to repeat the process. Blood is both a tissue and a fluid. It is a tissue because it is a collection of similar specialized cells that serve particular functions. These cells are suspended in a liquid matrix (plasma), which makes the blood a fluid. If blood flow ceases, death will occur within minutes because of the effects of an unfavourable environment on highly susceptible cells.



B)Xylem is the specialised tissue of vascular plants that transports water and nutrients from the plant–soil interface to stems and leaves, and provides mechanical support and storage. The water‐conducting function of xylem is one of the major distinguishing features of vascular plants. Water is the primary solvent for plant nutrition and metabolism, and is essential for photosynthesis, turgor and for transport of minerals, hormones and other signalling molecules. The water‐conducting xylem cells provide an internal hydrophobic surface facilitating water transport as well as mechanical strength.