Algae, Fungi, and Bacteria - Growing Conditions, Benefits or Harm to Humans and Animals – Assignment Example

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The paper “ Algae,   Fungi, and Bacteria - Growing Conditions, Benefits or Harm to Humans and Animals” is a perfect example of an assignment on biology. Algae are diverse photosynthetic organisms that have simple cellular forms because they lack complex vascular networks and reproductive organs observed in higher plants. Algae can be aquatic or subaerial and aquatic algae can be found in a broad pH range, differing oxygen and carbon dioxide concentrations, temperature and turbidity, they can also be planktonic or benthic (epilithic, epizoic epiphytic or epipelic). algae use phototrophy heterotrophy to gain their nutritional needs.

Most algae groups are considered photoautotroph’ s meaning that they depend on photosynthesis to synthesize food with the use of sunlight as their energy source, and carbon dioxide as their carbon source for the production of carbohydrates. those that cant synthesize complex molecules like vitamin b12 or fatty acids are autotrophic. Cyanophyceae are a class of algae that are found in both fresh and saltwater. They are photosynthetic and contain chlorophyll and phycobilins. During winter, there is less sunlight in comparison to summer. It is also increased could cover and low temperatures.

Could cover affects the time light takes to strike the water surface and in turn, this influences the rate of photosynthesis. As a result algae densities are low during winter because of the decreased rates of photosynthesis. The temperatures during winter are also very low and this decreases the rate of respiration/ metabolism in the organisms. There is decreased reproduction. The intensity of sunlight directly influences the rate of photosynthesis in algae. More sunlight results in more photosynthesis and hence an increase in Cyanophyceae densities within their habitat.

During summer temperatures are high and the heat gives a suitable temperature for the organisms to thrive in. Enzymes operate best at optimum temperature and this increases the organism's rate of function. Increased respiration etc. Temperature affects the density of water higher temperatures mean less density and less resistance for aquatic animals. This increases the ease of algae predators to capture them and eat. The different climate seasons in an ecosystem influence the growth, reproduction and overall density of Cyanophyceae algae. Algae have been seen to occur in higher densities in the summer than in the winter. Mineralization is the process through which organic materials are transformed into inorganic materials.

It occurs throughout the water column and this usually occurs during a season in the euphotic zone of the water body. The main effect of recycling minerals is the rate of recycling growth-limiting factors like sulfur, nitrogen, iron, and phosphate. In aquatic bodies, oxidative degradation takes place in areas that have high oxygen concentration. It is important for the required concentration of limiting nutrients to be at a threshold concentration for the ominous survival of algae.

With the changes in seasons the concentrations of these nutrients, for example, nitrogen phosphorous and silicon, also fluctuate. This directly affects the growth and survival of algae in the aquatic environment. This fluctuation results in the seasonal blooming of algae which is seen when conditions are optimum. Cyanophyceae algae require silicon for the construction of diatom during development. In cases of limiting silicon concentrations, cell division is stopped in the G2 phase and cell cycle division is stopped. Silicon limitation is more prevalent in spring than summer and as a consequence, the density of algal bloom is less in spring in comparison to summer.

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