Mushroom A mushroom (or toadstool) is the fleshy‚ spore-bearing fruiting body of a fungus‚ typically produced above ground on soil or on its food source. The standard for the name "mushroom" is the cultivated white button mushroom‚ Agaricus bisporus; hence the word "mushroom" is most often applied to those fungi (Basidiomycota‚ Agaricomycetes) that have a stem (stipe)‚ a cap (pileus)‚ and gills (lamellae‚ sing. lamella) or pores on the underside of the cap. "Mushroom" describes a variety of gilled
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Oparin and Haldane’s Theory: The chemical evolution of life is the most widely accepted theory of origin of life. It is based on the fact that primitive earth was different from the earth which is present today. It was proposed by Russian bio-chemist‚ A.I Oparin (1923) and was supported by Englishman J.B.S Haldane (1928). This theory can be well-explained under the following headings: i. Biogeny ii. Chemogeny iii. Cognogeny 1. Formation of the earth: i. When the earth was formed‚ it was extremely
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Question 1 The subatomic particles that play the greatest role in cellular chemical reactions are Your Answer for Question 1 isotopes. Comments The correct answer is: electrons. Max Score: 5 Actual Score: 0 Question 2 The structural unit that retains the properties of an element is the Your Answer for Question 2 atom. Comments Correct!!
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There are different types of proteins. Fibrous proteins‚ for example‚ can be correlated with structure. Keratin is the main component of hair and nails that form protofibrils and consist of two pairs of alpha helices that are twisted together in a left-hand coil. The flexibility of keratin decreases as disulfide bond cross-links between protofibrils increases. Keratin is also found in skin and wool. Silk fibroin has the ability to form flexible‚ but the inextensive fibers are of great strength
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Gatorade (15 solutions). Then the lab was split altering 3 different variables (Time‚ Temperature‚ Enzyme amount). This illustrated the variable that had the biggest impact on the results. LAB QUESTIONS 1. No‚ it would not work because sucrose is a polysaccharides but this enzyme interacts with monosaccharides. This could only work if they were broken down or if a different enzyme was
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some reason‚ I never knew that sugar was part of carbohydrates‚ I thought that it was a part of fat. Anyways‚ something new that I learned that carbohydrates is divided into two categories: simple‚ monosaccharides and disaccharides; and complex‚ polysaccharides. One thing that I do recall on carbohydrates back when I took a health class‚ that carbohydrates contain 4 calories per gram and are converted into glucose indigestion. But surprising‚ one fact that I found to be very amazing was that simple carbohydrate
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differences in their cell walls. Bacterial cell walls contain a polymer called peptidoglycan. Gram-positive bacteria have more of this polymer than gram-negative bacteria. They are also less complex than gram-negative cell walls‚ missing different polysaccharides‚ lipids‚ and proteins that are found in gram-negative bacteria. Three different stain types are used in the identification process: safranin (pink/red)‚ crystal violet (purple)‚ and Gram iodine. Along with being either gram-positive or gram-negative
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Chapter 2.0 Cell Structure and Functions Prokaryotic and Eukaryotic cell Cell are grouped into tissue Cell as a unit of life Prokaryotic and eukaryotic cells Structure and functions: cell membrane Microscopic and structures of organelles plant and animal cell Cell prokaryotic theory eukaryotic Plasma membrane Organeles - Nucleus - mitochondria Plant cell Animal cell - ruogh and smooth endoplasmic reticulum -Golgi body --ribosome --lysosome compare --chloroplast --centriole animal plant
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the species of Chlorella vulgaris‚ with carbohydrates being 37-55% of its dry weight (Brennan and Owende‚ 2010; Dragone et al.‚ 2011; Illman et al.‚ 2000). The carbohydrates in green algae mainly come from starch in chloroplasts and cellulose/polysaccharides on cell walls (Richmond‚ 2004). The growth of microalgae and the composition of microalgae biomass are known to be greatly dependent on the light supply (type of light source and light intensity) (Ogbonna and Tanaka‚ 2000) medium composition (especially
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1.1.1 In small unicellular organisms‚ substances move around slowly by diffusion. Diffusion is too slow to move substances round the larger bodies of multicellular organisms. They have a circulatory system: substances are carried in blood pumped by a heart. In a closed circulatory system (eg in vertebrates) blood is enclosed in narrow blood vessels. This increases efficiency: blood travels faster as a higher pressure is generated. Valves ensure blood flows in one direction:
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