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
Premium Oxygen Steel Welding
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
Free DNA
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
Premium Polysaccharide Starch Cellulose
Study guide Exam 1 Ch 1-5 CH 1 Overview‚ what is evolution‚ what is biology‚ what is life Evolution scientific explanation for: the unity and diversity we see in various organisms the suitability of organisms to their environments is evolution Hierarchy – molecules‚ cells‚ tissue‚ organ‚ organisms‚ populations‚ communities‚ ecosystem‚ biosphere Emergent properties – zooming from molecular level out to see function Reductionism (complex to simple) and Systems Biology (dynamic) Organisms
Premium Atom Molecule Acid
1. Cellulose‚ starch‚ and glycogen are very similar‚ yet very different. Describe the process by which each of these molecules is formed. Why does the subtle difference in how the simple sugar monomers are bonded in starch and cellulose affect how the two molecules are used? Cellulose is built from glucose molecules bonded covalently together through a process known as hydrolysis. Hydrolysis is a chemical process in which a molecule of water is added to a substance. Each alternating glucose
Premium Protein Bacteria Glucose
macromolecules? What is a monomer? What is a polymer? What is polymerization? 2.- A macromolecule is a very large molecule commonly created by polymerization of smaller subunits. In biochemistry‚ the term is applied to the three conventional biopolymers (nucleic acids‚ proteins‚ and carbohydrates)‚as well as non-polymeric molecules with large molecular mass such as lipids and macrocycles. The individual constituent molecules of polymeric macromolecules are called monomers (mono=single‚ meros=part
Free DNA RNA
viruses‚ and controls cell health and function. Nucleic acids are composed of polymers and monomers‚ which are referred to as nucleotides. There are four different types of nucleotides that make up the structure of DNA‚ which are abbreviated A‚ C‚ T‚ and G. Covalent bonds join together nucleotides through sugar and phosphate. Polynucleotides‚ or a polymer nucleotide‚ which tends to be longer than a monomer nucleotide‚ contains many variations of arrangements of A‚ C‚ T‚ and G. 2. How does
Premium DNA Gene Genetics
similarly to carbon and hydrogen‚ silicon and oxygen form numerous compounds. They are commonly known as silicates An Example - Beach sand is a good example for a mixture of silicates. Polymer - A large molecule made up of chains or rings of linked monomer units. Polymers usually have high melting and boiling points. An example - Examples of Polymer would be PVC (poly vinyl chloride)‚ polystyrene‚ and cellulose. Liquid crystal – A liquid having certain crystalline characteristic‚ especially differntoptical
Premium Oxygen Hydrogen Carbon
to evolve cells from inorganic precursors 1. Abiotic synthesis of simple organic molecules (monomers) a. PROBLEM: Early scientists assumed that organic molecules are formed only by organic life b. SOLUTION: inorganic chemistry found to create organic compounds 1. Miller/ Urey experiments 2. Hydrothermal vents 3. Extraterrestrial origins? 2. Monomers to polymers a. PROBLEM: Complex polymers are generally created via organic enzymatic processes
Premium Photosynthesis Protein Oxygen
interact with other molecules. 11. How do you build a polymer? How do you breakdown a polymer? Build by dehydration from monomers and take out wather‚ break down by hydrolysis add water to form monomers 12. Know the 4 major macromolecules. Here are some important things you should know from each category. a. Carbohydrates- Glucose‚ alpha-glucose-starch‚ beta-glucose-cellulose‚ monomer: monosaccharides‚ polymer:
Premium Protein Adenosine triphosphate Cell