Biology essay

BIOLOGY ESSAY Nadia Wahika ,[object Object],I say the “connective tissue” is the most important tissue in animals. As one of the four basic tissue types in traditional classifications of animal tissues, the connective tissue is also very well known by most. Connective tissue is made of fibrous tissues. They have the mechanical characteristics of soft tissue. The connective tissue serves many functions such as: binding, protecting, supporting, forming blood, storing fats and filling space. In other words, the connective tissue supports and connects internal organs, forms bones and the walls of blood vessels. They also attach muscles to bones and replace tissues of other tissue types when injured. Some crucial organs such as blood and bones are also made up of connective tissues. Since the skeleton is made out of connective tissue, it is clear how the connective tissue plays an important role in locomotion (movement of the body). Diseases and disorders of the connective tissue are not commonly known. They are usually inherited but can also be caused by environmental factors. In conclusion, I believe the connective tissue is the most important tissue in animals because they have many important functions crucial to our everyday lives and without them functioning well, we’d have some serious complex abnormalities. ,[object Object],I say the phloem is the most important tissue in plants. The phloem is important, as it is a part of the ‘plumbing’ system of a plant. It and the xylem together make up the plant vascular tissue system. While the xylem tissue dies every year and then develops new ones (resulting in tree barks), the phloem is always alive (in trees the phloem is the innermost bark). The phloem tissue consists of sieve-tube members and companion cells. The actual tube in where the sap flows is called the sieve tube, and it is made up of sieve tube elements. The sieve tube elements are large, cylindrical cells, with large pores in the cell wall. They have no organelles, and almost entirely dead. All of the sieve tube functions are carried out by its companion cells, which are much smaller but living. Primarily, the phloem functions to carry dissolved food substances throughout the plant. The phloem is the tissue that carries organic nutrients, particularly glucose. The phloem is composed of still-living cells that transport sap, a water-based solution rich in sugar produced by photosynthesis. In conclusion, I think the phloem is the most important tissue in plants because it transports the food – the source of energy – throughout the plant and without it plants will, of course, not live.

Biology essay

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Biology essay