For this discussion, you will discuss and explain the classification systems used to sort living things into categories.
Unit 1 Discussion 2: The Five Kingdoms
BACTERIA KINGDOM
For this discussion, you will discuss and explain the classification systems used to sort living things into categories. One way scientists do this is to look at their common characteristics, nutrient consumption, shelter and defenses, and reproductive strategies and put them into one of the five major kingdoms.
Post your own description and introduction to your assigned kingdom. You must respond based on your assigned category.
PROFESSOR TWO CENTS:
Kingdom Fungi
The fungi kingdom contains over 1.5 million different species! Fungi species date back nearly 500 million years ago (Margulis & Chapman, 2009). The most common and familiar types of fungi include mushrooms and mold. Fungi were considered to be a part of the plant kingdom until the 1960s where the kingdoms were separated due to the fact that fungi are not photosynthesizing organisms and do not contain chlorophyll. Fungi, unlike plants, cannot produce their own food and must absorb nutrients from organic sources (Vidyasagar, 2016).
https://www.khanacademy.org/science/biology/crash-course-bio-ecology/crash-course-biology-science/v/crash-course-biology-138 (Links to an external site.)
Brewer’s Yeast
Brewer’s yeast (Saccharomyces cerevisiae) is a fungal species used in winemaking, brewing, and baking. It is one of the most extensively studied eukaryotic organisms, and is considered to be a microorganism behind fermentation processes. Food microbiologists are especially interested in the biological processes by which brewer’s yeast reproduces, feeds, and exists – it has become a useful model species throughout the years. This species reproducing by a process called “budding.” Budding is when a small “bud” forms on one end of the “mother cell” and continues to grow, once it is equivalent in size to the mother cell it separates (Encyclopedia Britanica, n.d.).
brewers yeast.jpg
S. cerevisiae is found naturally on the skins of fruits, such as grapes. The cells survive as either haploid or diploid, dependent upon the life cycle phase (Vidyasagar, 2016).
Kingdom: Fungi
Phylum: Ascomycota
Class: Hemiascomycetes
Order: Saccharomycetales
Family: Saccharomycetaceae
Genus: Saccharomyces
Species: S. cerevisiae
Resources:
[1]. Margulis, L. & Chapman, M.J. (2009). Kingdoms and Domains. Academic Press.
[2]. Vidyasagar, A. (2016, February 5). Facts about the Fungus Among Us. Live Science. https://www.livescience.com/53618-fungus.html (Links to an external site.)
[3]. Encyclopedia Britanica. (n.d.). S. cerevisiae. Retrieved June 9, 2020. https://www.britannica.com/science/Saccharomyces-cerevisiae (Links to an external site.)
Note. From Yeast Saccharomyces cerevisiae [Photo], by Kateryna Kon, Science Photo Library. https://www.sciencephoto.com/media/951725/view/yeast-saccharomyces-cerevisiae-illustration (Linrswks to an external site.)
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