Write an essay on the role of fungi in wood and litter decay. [40] Fungi‚ together with bacteria‚ are the principal decomposers in the biosphere. They break down organic materials and return the substances locked in those molecules to circulation in the ecosystem. Fungi can break down cellulose and lignin‚ an insoluble organic compound that is one of the major constituents of wood. By breaking down such substances‚ fungi release carbon‚ nitrogen‚ and phosphorus from the bodies of living
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Answer Sheet: How are microscopic protest and fungi classified? (2 pages) | |Scientific Name |Classification |Habitat |Nutrition |Locomotion | | | |Group | | | | |Organism B |Penicillium |Fungus |Citrus fruit |Organic matter
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Lab #5: Refraction of Light Theory: Refraction can be defined as the bending of a wave when it enters a medium which causes it to have some reduced speed. In terms of light‚ refraction occurs when the ray passes through some medium which slows its speed; such as water or glass. In this instance the ray tends to bend towards the normal of the medium. The amount of bending or refraction which occurs can be calculated using Snell’s Law (). Objective: To measure the index of refraction of Lucite
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Fungi is one of the five kingdoms of the living world that contains a diversity of organisms‚ there is an estimation of about 1.5 million species of fungi worldwide out of which‚ approximately 120000 species and majority tends to be living in an environment which is either aquatic or terrestrial ascomycetes and basidiomycetes species (Kirk‚ 2008). Have been described till date‚ however the numbers are dynamic in steadily escalating (Hawksworth‚ 1991) Cercospora zeae-maydisis fungus that is responsible
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between bacteria viruses‚ Fungi and Parasites. Viruses are pieces of nucleic acid (DNA or RNA) wrapped in a thin coat of protein that replicate only within the cells of living hosts. Bacteria are one-cell microorganisms with a simple cellular organization whose nucleus lacks a membrane. Parasites may be protozoa‚ yeasts‚ or multicellular organisms such as fungi or worms that live in or on a host to obtain nourishment without providing any benefit to the host. Fungi There are many different
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Lab: investigating hooked law with springs Purpose: to find spring constants of different springs using the slope of a graph of change in heights vs. the weight force. Also‚ to be able to understand how spring constants change when you add springs in a series or paralle Pre lab predictions: We predicted that the graph of gravitational force (mg) as a function of stretch (delta x) would look like Data: Spring #1: y = 8.2941x + 0.0685 This table represents the different distances that
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rise to the genetic variation in offsprings. Meiosis in fungi differs from those in plants and animals. Fungi are composed of hyphae‚ which are tubules that make up the frame. These hyphae together form a clump or a mat that is the mycelium (Campbell‚ 637). The hyphae are key to fungus reproduction. Typically fungi produce large amounts of spores through either sexual or asexual reproduction. Fungal hyphae are normally haploid. When two fungi mate‚ the hyphae fuse together. The movement of the two
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of the specialized underlying structures of these life-forms. In order for us to appreciate these special adaptation‚ we first need to know how a typical plant or an animal cell organelle behaves in different water and solute concentrations. In this lab‚ we will determine the effects of hypertonic‚ isotonic and hypotonic solutions on plant and animal cells. In general when an animals cell’s placed in hypertonic solution it shrivels; a plant cell on the other hand undergoes plasmolysis. When an animal
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Toxicology Lab 1. In this investigation‚ a wide range of concentrations of Sodium Chloride (NaCl) solution were created and the effects that they had on radish seeds were tested. This ultimately created a doseresponse experiment in which it was detectable whether or not radish seeds were a reliable bioassay for the toxicity of NaCl. The goal of this experiment was to determine a correlation between toxicity and seed germination/radicle
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Lab: Cellular Respiration in Yeast Lab Report Form Your Name: Katlin Moore “What do you think? – What do you know?” Questions: In this lab‚ we will investigate the effect of sucrose concentration on the rate of cellular respiration in yeast. Under specific conditions‚ yeast will convert sucrose into glucose and then use this glucose in cellular respiration. Yeasts have been used by humans in the development of civilization for millennia. What is yeast? How have humans used yeasts?
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