What are waxes and what is its function? Waxes are on leaves of plants to make them waterproof. 12. What are lipids composed of (structure)? Fats and oils; glycerol and 3 fatty acids. 13. What are the elements that lipids contain? Lipids contain carbon‚ hydrogen‚ and oxygen. 14. What process occurs when glycerol and 3 fatty acids combine to form 1 fat? Dehydration synthesis. 15. What are saturated fats? They generally come from animal fats. 16. Where do they come from? They come from animal fats
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Exercise No. 8 CARBOXYLIC ACIDS AND ACID DERIVATIVES I. OBJECTIVES: • To investigate the physical and chemical properties of Carboxylic acid and its derivatives • To understand the reactions of carboxylic compounds and derivatives. II. EXPERIMENTAL RESULTS Solubility of Carboxylic acids in 10% NaHCO¬3 Acetic acid - formation of bubbles Benzoic acid - formation of bubbles Test for Acetic acid NaOH + Acetic acid - blue litmus paper turned red NaOH + Acetic acid + FeCl3 - red colored
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Chem Final Exam Sample 1 Question 1 of 36 0.0/ 0.0 Points The n = ________ principal shell is the lowest that may contain a d-subshell. A. 4 B. 1 C. 3 D. 2 E. not enough information Question 2 of 36 4.0/ 4.0 Points Which of the following elements has the highest ionization energy? A. Ca B. Al C. Cl D. Ne E. Ba Question 3 of 36 4.0/ 4.0 Points The principal quantum number (n): A. specifies the principal shell of the orbital. B
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Amino Acids Glycine is the smallest of the amino acids. It is ambivalent‚ meaning that it can be inside or outside of the protein molecule. In aqueous solution at or near neutral pH‚ glycine will exist predominantly as the zwitterion. Alanine is a hydrophobic molecule. It is ambivalent‚ meaning that it can be inside or outside of the protein molecule. The α carbon of alanine is optically active; in proteins‚ only the L-isomer is found. Serine differs from alanine in that one of the methylenic
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Examples are fatty beef‚ lamb‚ pork‚ poultry with skin‚ beef fat (tallow)‚ lard and cream‚ butter‚ cheese and other dairy products made from whole or reduced-fat (2 percent) milk. These foods also contain dietary cholesterol. In addition‚ many baked goods and fried foods can contain high levels of saturated fats. Some plant foods‚ such as palm oil‚ palm kernel oil and coconut oil‚ also contain primarily saturated fats‚ but do not contain cholesterol. Trans- fats (or trans- fatty acids) are created
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A. & Southgate‚ D.A.T. (1978) McCance and Widdowson’s The Composition of Foods‚ 4th. Edition. London: HMSO. Paul‚ A.A.‚ Southgate‚ D.A.T. & Russell‚ J. (1980) First supplement to McCance and Widdowson’s The Composition of Foods. (Amino Acid Composition‚ Fatty Acid Composition). London: HMSO. Southgate‚ D.A.T. & Paul‚ A.A. (1978) The new ‘McCance and Widdowson’. A guide to the 5 fourth edition of McCance and Widdowson’s The Composition of Foods. J. Hum. Nut. 32‚ 137–141. Tan‚ S.P.‚ Wenlock‚ R.W. &
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Fatty acids (FAs) can ultimately be degraded through different pathways which include alpha‚ beta‚ and omega-oxidation. Alpha-oxidation occurs at carbon 2 of the chain‚ b-oxidation at C3‚ and omega-oxidation at methyl end of the fatty acid. The location of each mechanism also differs as alpha- oxidation occurs in peroxisomes only‚ beta-oxidation can take place in both peroxisomes and mitochondria. Omega-oxidation occurs in the endoplasmic reticulum of the various tissues. The importance of the differentiation
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) Nucleic Acids -On the molecular scale‚ members of three of these classes--- Carbohydrates‚proteins‚ and nucleic acids--- are huge and therefore called Macromolecules. - Architecture of a large biological molecule helps explain how that molecule works. ---------------------------------------------------------------------------------------------------------------------------- Macromolecules are polymers‚ built from monomers - Carbohydrates‚ proteins‚ and nucleic acids are all chain-like
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GIVEN: TO DESIGN A 1000TPD CAPACITY H2SO4 ACID PLANT BASIS: 1 HOUR OF OPERATION. PURITY: PRODUCT WHICH IS TO BE MANUFACTURED IS ASSUMED TO HAVE STRENGTH OF 98% ACID. 1000TPD implies that we have Acid 1000 x 10 / 24 = 41666.67 Kg/Hr of 3 With 98% purity‚ the acid that is produced per hour = (98 x 41666.67) / 100 = 40833.34 Kg/Hr Kmoles of Sulfuric acid to be produced = 40833.34 / 98 = 416.667 Kmoles/Hr It’s assumed that overall absorption of the acid is 100 % = 416.667 / 1.0 Then‚ SO3 required
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fat. Saturated fats have chemical makeup in which the carbon atom is with hydrogen atom. Unsaturated fats are fatty acid in which there is one or more double bond in acid. Trans – fatty acids is an unsaturated fatty acid produced by the partial hydrogenation of vegetable oils. Hydrogenated fat is when any land of oil has gone through a specific manufacturing process. Trans fatty acid is harmful to the body it can increase the risk for heart disease and vascular problems. It may have a direct association
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