Therefore, the correct answer is option C. […] trianshitripathi424 trianshitripathi424 Answer: Bio - degradable . Ability of the pathogen to invade and multiply in the host b. Pathogen's ability to produce disease by the production of a soluble toxin c. Ability of an agent to produce disease d. Potency of a pathogen measured in terms of the number of microorganisms required to kill the host a) photodegradable b) biodegradable c) thermodegradable d) none of these Ans: b Feedback: see section Disposal of Solid Waste You've reached the end of your free preview. a. an oxygen-free environment cannot be created for strict anaerobes. Join now. Solution for Agar is superior to gelatin as a solidifying agent because agar a. does not melt at room temperature b. solidifies at 75°C c. is not usually… Microorganisms obtain their energy by transferring electrons biochemically from organic matter (or from certain inorganic compounds) to electron acceptors such as oxygen (O 2) and other inorganic compounds.… ... bishekkumar3929 is waiting for your help. A brief description of soil microorganisms has been given below: 1. The ability to study microorganisms is hindered by the fact that _____. ... does not melt at room temperature and is not usually decomposed by microorganisms. Add your answer and earn points. 1. Pectin: The "glue" that holds plant cells together. Waste polymers can be incinerated. Which of the following is defined as the ability to distinguish or separate two adjacent objects or points from one another in a microscopic specimen? Micro-organisms decompose something with the help of an enzyme. The primary microorganism, initially convert the complex carbohydrates and proteins into simple carbon sources. rapid, an incubator. Alkyl sulphates were found to be decomposed by heterotrophous gram-negative rod-like bacteria belonging to different families and genera. Selected Answer: decomposed by soil microorganisms for it to be available Answers: decomposed by soil microorganisms for it to be available Question 7 (2 out of 2 points) decomposed by soil microorganisms for it to be available Answers: decomposed by soil microorganisms for it to be available Question 7 (2 out of 2 refraction of light rays. Organic matter -- decomposed leaves, twigs, feathers and manure -- is one of the primary components of soil. Top Answer. Top Answer. Humus is a dark - brown or black organic substance made up of decayed plant or animal matter which are fully decomposed by microorganisms like bacteria. Combustion. 1. The ability of soil microorganisms to decompose organic matter is … ... 3-11) T/F - Agar has the disadvantage of being easily decomposed by microorganisms. Find an answer to your question Ability to be decomposed by microoganisms 1. Microorganisms have ability to grow in low and high temperature are called psychrophiles and thermophiles respectively. Get 1:1 help now from expert Biology tutors Wiki User ... Biodegradable materials are substances can be consumed by microorganisms (can be decomposed). Phototaxis refers to the ability of microorganisms to _____. Difference between aerobic and anaerobic decomposition of soil organic matter: 1. Question 3 Give any two ways in which non-biodegradable substances would effect the environment. These enzymes are specific in action. It has a characteristic black or dark brown color and is organic due to an accumulation of organic carbon. In what ways might a microorganisms ability to grow at low or high temperatures be reflected in the structure or expression of various proteins? b. space limitations prevent culture of all known organisms. This differs from compounds, which can be decomposed into the elements that make them. Major plant nutrients that degrade water quality are:ANSWER: Nitrogen and phosphorus Major plant nutrients that degrade water quality are:ANSWER: Nitrogen and phosphorus Maximum yieldANSWER: Applying a higher level of inputs may give you maximum amount of crop but without provide the greatest profit per acre. Humus provides nutrients for plants and increases the ability of soil to retain water. A subculture is a. Plastics are that decomposed by microorganisms like bacteria, are _____. The process that most accounts for magnificaiton is. These processes are largely restricted to the upper meter of soil. ... Heat sensitive materials, like vaccines, are sterilized by using filtration to remove microorganisms.T/F. Friday 15 June 2012 – Morning A2 GCE BIOLOGY F215 Control, Genomes and Environment INSTRUCTIONS TO CANDIDATES † The Insert will be found in the centre of this document. 2. In this condition, organic matter is decomposed by primary as well as secondary microorganisms. (ii) These substances keep the environment clean. True. Humus provides nutrients for plants and increases the ability of soil to retain water. If something is biodegradable, it can be broken down or decomposed by microorganisms. They act only on certain substances and covert them into simpler substances. Methemoglobinemia (Blue Baby disease)ANSWER: Caused by the nitrogen form - … The heat they produce causes the compost temperature to rapidly rise. Answer: A) Soils rich in humus improve plant growth. Explanation: Humus improves the organic matter content in the soil, so the soil has the ability to provide plants with a malleable soil, rich in nutrients and with a vast and healthy population of microorganisms. Previous question Next question Get more help from Chegg. Decomposition is the process by which dead organic substances are broken down into simpler organic or inorganic matter such as carbon dioxide, water, simple sugars and mineral salts.The process is a part of the nutrient cycle and is essential for recycling the finite matter that occupies physical space in the biosphere.Bodies of living organisms begin to decompose shortly after death. Initial decomposition is carried out by mesophilic microorganisms, which rapidly break down the soluble, readily degradable compounds. Food waste, paper, linens, and … The remaining 10% results from the metabolism of all other organisms, as well as the combustion of fuel and other materials. † Write your name, centre number and candidate number in the boxes above. The ability to assimilate alkyl sulphates was tested in 257 collection cultures belonging to different taxonomic groups. 22.5.8 Nutrients. Soil Algae: Soil algae (both prokaryotes and eukaryotes) luxuriantly grow where adequate amount of moisture and light are present. Microbivores: Microorganisms that consume decomposers. Although people often think of soil as a strictly mineral compound, soil is actually a complex mixture of minerals, organic matter, liquids and gases. Producers: Reference to plants in the food pyramid since they are the primary source of all food. Terms in this set (15) 3-1) The term culture refers to the ____ growth of microorganisms in ____. Surfactants have the ability to lower the surface tension of water, which increases water's ability to penetrate. (i) Biodegradable substances are decomposed by the action of microorganisms and decomposed materials are recycled through geo-chemical cycle. Ethylene oxide is a sterilizing agent that can be very harmful to humans.T/F. c. over 95% of microorganisms currently have no in vitro culturing system available. The breakdown of materials by microorganisms when oxygen is present is aerobic digestion, ... Due to anaerobic digestion's ability to reduce the volume and mass of waste materials and produce a natural gas, ... at least 90% of the original mass should be decomposed into particles that are able to pass through a 2x2 mm sieve. Answer. ANSWER attach to solid surfaces move toward or away from chemical stimuli move in a wavelike motion survive under adverse conditions move toward a source of light. 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