Tuesday, September 24, 2019
The Significance of Bacteria in the Ecology Research Paper
The Significance of Bacteria in the Ecology - Research Paper Example The cell membrane is composed of lipids (phospholipids ) such as cholesterol, proteins, and lipids or protein carbohydrates associations.The function of the cell membrane is to regulate the materials which enter and leaves the cell. In evolution, bacteria have produced nutrition for communities of living organisms through photosynthesis and chemosynthesis. Other significances both ecological and evolutionary includes: they are decomposers of ecosystems (they decay dead organisms to release elements needed by other living organisms), the metabolic processes of some bacteria produced the first oxygen gas in the atmosphere, they aid in atmospheric nitrogen fixation and also as ecological decomposers by cleaning environment and releasing elements needed by other organisms from dead decaying matter. In symbiosis, parasites obtain nutrients and nourishment and harm their hosts, while they get nourishment and nutrients and neither do they harm nor benefit their hosts. On the other hand, mutualists benefit their hosts. Sexual reproduction is advantageous in that it results in variation e.g offsprings of human can have traits from all the four grand parents. Asexual reproduction, on the other hand, is advantageous because it results in the in production of great numbers of offsprings hence high survival chances of a given species. In mitosis process, one nucleus divides into two identical nuclei while meiosis is the process by which one nucleus with two copies of each chromosome divides into four nuclei with one copy of each chromosome.