General Biology Lab - 1057 Words

Keva Harris 25 February 2016 Biology Lab 27-13 Survey of the Kingdom Fungi Question 1: a. Are hyphae apparent? Yes b. Are the cells motile? Yes Question 2: a. How many species of mold are on the bread? Five b. Is pigment distribution uniformly in each mycelium? If not, where is the pigment concentrated in each mold? No, because the species is not all one color. Concentrated in the sporangium c. What is the adaptive significance of spores forming on ends of apright filaments rather than closer to the protective substrate? It can spread and disperse easier. Question 3: a. Is what structure is the dark pigment of Rhizopus concentrated? zygosporangium b. Is Rhizopus reproducing sexually as well as†¦show more content†¦This happens when the conditions in the environment are good. When in they are in the diploid stage, they mate, and the genes are combined for unique offsprings. The most adaptive offsprings are most suited for survival. Therefore, the diploid state allows an adaptive advantage, but not the haploid. 4. Compare and contrast the structure of a fungal mycelium with the structure of a filamentous alga. The biggest difference is that the fungal mycelium does not have the cytoplasm divided up into individual cells. The cytoplasm is free to move around into all parts of the mycelium. You can imagine how quickly the mycelium can distribute nutrients within itself. This allows the mycelium to grow very quickly. Both are filamentous. 5. What is the advantage of maintaining a dikaryotic condition rather than immediate nuclear fusion? Some fungi have a dikaryotic (two nuclei in one cell) stage, more commonly known as a heterokaryotic stage, because the fungus can wait for an opportune time to fuse the nuclei together and grow. The fungus would not want to grow rapidly in the diploid stage unless it had adequate food sources. This waiting will allow for maximum efficiency during its growth. 6. In fungi, the only distinction between a spore and a gamete is function. Explain. In common parlance, the difference between spore and gamete (both together called gonites) is that a spore will germinate and develop into a thallus ofShow MoreRelatedThe Theory Of My Biology Lab At The University Of Miami1143 Words   |  5 Pagesclassroom. A specific classroom where I observed the implementation of community is my HHMI biology lab. My HHMI lab is structured in such a manner that for three hours, twice a week, three separate groups of six conduct our own independently designed research. The goal of the class is for the students to learn without any professor intervention. 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