partially branched. | B. | Starch is a polymer of glucose. | C. | Starch is formed by the condensation of monomers. | D. | The properties of starch are very similar to those of cellulose. | E. | Starch may be digested by people. | Answer choice E Which of the following characteristics distinguishes carbohydrates from other macromolecule types? A. | Carbohydrates are constructed of monomers that always have a ring structure. | B. | Carbohydrates never contain nitrogen. | C. | Carbohydrates
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Unit 1 – Introduction to the Cell Robert Hooke – built the first microscope (30x magnification); viewed slices of cork called cellula (little rooms). Antoni Van Leeuwenhoek - worked with glass huge improvement in quality of lenses nearly 300x magnification became possible first to observe: * single-celled organisms “animalcules” * protists from pond water * bacteria from his mouth – “father of microbiology” * blood cells * banded pattern in muscle cells * sperm from
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partially natural. Most plastics are derived from propylene‚ a simple chemical component of petroleum. When heated up in the presence of a catalyst‚ individual chemical units monomers of propylene link together by forming extremely strong carbon-carbon bonds with each other. This results in polymers long chains of monomers called polypropylene. This content of plastic makes it hard to degrade On top of the list of alternatives for plastics that we currently use ‚ is the Bioplastic which is one of
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level. If our blood becomes acidic or basic this buffer neutralizes conditions. 4) C6H12O6+6O2-->6CO2+6H2O a) Carbon atoms in glucose are being oxidized b) Oxygen is being reduced Unit 1 Lesson 2 Key Questions 5)a) Carbohydrates monomer(s) is monosaccharide’s which are simple sugars. The functional groups of carbohydrates are carbonyl and hydroxyl. The linkage type is a
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procedure with a starting monomer ratio of 70:20:10 of L-LA‚ GL and Ɛ-CL respectively using the catalyst tin(II)2-ethyl hexanoate. The chemical reaction is given in the figure1. The yield % of the synthesized polymer was calculated by the equation: Yield %= (Weight of synthesized polymer)/(Weight of the monomers taken) ×100 Characterization of synthesized polymer: Chemical analysis using Fourier transform infrared Spectroscopy: Fourier transform infrared (FTIR) spectrum of monomers and synthesized PLGC
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Biology Honors Final Exam Review Study Guide A. Intro Unit * Characteristics of life (DR.CHARGE) * DNA * Directs protein synthesis * Reproduce * Divides in mitosis (asexual reproduction) * Cells * Homeostasis * The process by which cells maintain constant internal condition (water‚ temperature) * Adaptation (Evolution) * Respond to stimulus * Growth (Development) * Energy * Heterotroph: an organism that cannot synthesize its own food
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early atmosphere - earth roughly 4 billion yrs old - created by volcanoes erupting + releasing gases - contained mostly co2 + water vapour - earth cooled + water vapour condensed to form oceans - co2 dissolved into oceans + used to form marine organism shells which were compacted to form sedimentary rock - plants evolved to photosynthesise‚ takingin co2 + releasing oxygen - scientists don’t kno where all nitrogen came from bc they weren’t there to record evidence but most theories suggest
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Assessment 2 – 40580/02 1a) Plain carbon steel is essentially an alloy of iron and carbon which also contains manganese and a variety of residual elements. These residual elements were either present within the raw materials used in the production process e.g. iron ore and scrap steel additions‚ or they were added in the production process for a specific purpose‚ e.g. deoxidization by means of silicon or aluminium. Hence they are called residual elements to distinguish them from alloying
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nm and adjacent bases are separated by 0.34 nm and inclined at 360 relative to each other. This means that each complete turn of the double helix contains about 10 base pairs. 4. The amount of guanine is usually equal to that of cytosine. The monomers of RNA and DNA are called nucleotides. Each nucleotide has three parts: A Five Carbon or Pentose Sugar The sugar will be one of two very similar pentose rings. Ribonucleic acids contain the sugar ribose. Deoxyribonucleic acids contain the sugar
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when water is taken out. Starch Starch is a complex solid carbohydrate‚ consisting glucose molecules held together by glycosidic bonds. It is a storage polysaccharide. They can be found in fruits‚ seeds‚ roots and other parts of the plant. The monomer of starch is glucose. Therefore‚ starch molecules can be made by polymerisation reaction‚ where glucose molecules are joined together to form a long chain. These starch molecules are held by glycosidic bonds. Uses of starch * Forms parts of a
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