Campbell’s Biology‚ 9e (Reece et al.) Chapter 5 The Structure and Function of Large Biological Molecules In Chapter 5‚ the principles of chemistry covered in earlier chapters are applied to the understanding of biological polymers and lipid membranes. The emphasis is on properly linking monomers and their polymers‚ and on the structural and functional diversity of the different polymer types. Particular attention is given to protein structure‚ because this is central to understanding subsequent
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Which of the following types of molecules are the major structural components of the cell membrane? A) phospholipids and cellulose B) nucleic acids and proteins C) phospholipids and proteins D) proteins and cellulose E) glycoproteins and cholesterol For the following questions‚ match the labeled component of the cell membrane (Figure 7.1) with its description. [pic] Figure 7.1 5) peripheral protein 6) cholesterol 9) glycolipid 11) The presence of cholesterol in
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Core 1 summary notes 1) Fossils fuels provide both energy & raw materials such as ethylene‚ for production of other substances Identify the industrial source of ethylene from the cracking of some of the fractions from the refining of petroleum Catalytic cracking is the process whereby high molecular weight fractions are broken down to low molecular weight ones. This process is used in petroleum refineries where crude oil is broken down to smaller alkenes and alkanes‚ until ethene‚ propene‚
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area of the world. Some major molecules that were valued are phenol‚ isoprene‚ silk‚ cellulose‚ and glucose. Phenols were used as antiseptics during surgery to prevent cuts and wounds from getting infected. Isoprene‚ which is rubber‚ has been made into countless everyday items that we use to this day. Silk is one of the most valued fabrics in the world. Silk is very hard to harvest and it is expensive. Cellulose is the main component of cotton. Cotton is cheap and most of our clothes are made
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along near the solvent front because it is very soluble in the solvent being used and because it forms no hydrogen bonds with cellulose. Another pigment‚ xanthophylls‚ differs from carotene in that it contains oxygen. Xanthophyll is found further from the solvent front because it is less soluble in the solvent and has been slowed down by hydrogen bonding to the cellulose. Chlorophylls contain oxygen and nitrogen and are bound more tightly to the paper than are the other pigments. Chlorophyll a
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RF value 11. In reducing sugars are present in foods . benedict’s solution will turn form blue to a brick red on heating Carbohydrate | Insoluble | Forms fibrils | Reducing sugar | Polymer of ∝-glucose | Starch | ✔ | ✗ | ✗ | ✔ | Cellulose | ✔ | ✔ | ✗ | ✗ | Maltose | ✗ | ✗ | ✔ | ✔ | Glycogen | ✔ | ✗ | ✗ | ✔ | 12. a) columnar ephithelial cell b) describe & explain two visible features shown that are useful in the uptake of food molecules. - two of = many mitochondria
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TMA04 Question 1 In TMA02 I asked my tutor to give me specific feedback on the learning outcome Ky1. I was advised that I should take a little more care with significant figures and scientific notation. There has not been much emphasis on significant figures and scientific notation in TMA04. However I have taken the advice given by my tutor and broadened it to include attention to detail in all areas dealing with numbers within this assignment especially in questions 2 ai) 2ci) & 3bi). Question
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[pic] Inorganic ions ➢ Inorganic ions are important for the structures and metabolism of all living organism ➢ An ion is an atom or a group of atom which has overall electric charge. ➢ Inorganic ion are water soluble |Ions |Roles/Functions | |Calcium (Ca2+) |Make teeth and bones | |
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Part I: Biotechnology Bio – “life”; Techno – “tools”; ologoy – “the study of” The use of living systems and organisms to develop or make useful products Any technological application that uses biological systems‚ living organisms or derivatives thereof‚ to make or modify products or processes for specific use It is an interdisciplinary field merging basic sciences‚ applied science‚ and engineering Branches of Biotechnology a. Bioinformatics – an interdisciplinary field addresses biological problems
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ABCT 1101/ABCT1D04 Introductory Life Science INTRODUCTORY LIFE SCIENCE At our 3rd lecture‚ we want to discuss • The building blocks of biological organisms – Carbohydrates‚ proteins‚ lipids and nucleic acids • Cell structure and function – Cell membrane‚ ER‚ Golgi‚ cytoskeleton‚ nucleus – Plant cell vs. animal cell Simple Chemistry for Life Science • Each element consists of one kind of atom. – An atom is the smallest unit of matter that still retains the properties of an element
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