HEMOGLOBIN AND MYOGLOBIN I. OXYGEN CARRIERS A. Why do we need oxygen carriers? i. Cannot carry enough in blood to meet metabolic demand ii. Oxygen is very reactive – oxidizes iii. Oxygen cannot diffuse very easily (we have thick skin) B. Properties of a good oxygen carrier i. Binds oxygen at a high [O2] ii. Doesn’t oxidize cellular components iii. Gives up oxygen on demand C. Hemoglobin and Myoglobin i. Cooperativity 1. Hemoglobin needs to have high affinity to bind O2 in the lungs‚ but low affinity
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makes it such a powerful food Proteins Our bodies use amino acids as building blocks for protein. Depending on who you ask‚ we need 20-22 of them for this task Eight of them are considered essential‚ in that we have to get them from our food The remaining 12-14 we can make from the first eight via complex metabolic pathways in our cells Raw cow’s milk has all 8 essential amino acids in varying amounts‚ depending on stage of lactation About 80% of the proteins in milk are caseins- reasonably
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A macromolecule can best be described as an immense molecule‚ made up of thousands of covalently bonded carbon atoms. There are four classifications of macromolecules: carbohydrates‚ lipids‚ proteins‚ and nucleic acids. Each classification performs specific functions that allow cells to grow and survive. Macromolecules can be either split or bonded through dehydration synthesis or hydrolysis. Dehydration synthesis occurs when water is released‚ electrons become shared‚ covalently bonding two
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structure I.a.i.1.a.i.1.1. Control protein‚ makes muscles move‚ found in all shapes bacteria and chromosomes shaped segregation I.a.i.1. Bacteria Phages I.a.i.1.a. Phages that attack bacteria‚ causes DNA from viruses to produce tubulin protein‚ to create more viruses I.a.i.1. Has a cell wall. Pourous material made of 2 sugars I.a.i.2. 3 amino acids linked known as a Peptide bridge I.a.i. Cell Wall I.a.i.1. Has Plasma membrane made of lipids‚ fats‚ proteins‚ attached to the cell‚ selectively
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the digestive system and degrades proteins‚ making it an enzyme known as protease. [1] It is one of the three principal digestive proteinases‚ the other two being pepsin and chymotrypsin. [9] Trypsin primarily hydrolyses peptides into smaller building-blocks‚ mainly amino acids (these peptides are the result of the enzyme pepsin ’s breaking down the proteins in the stomach). This enables the uptake of protein in the food because peptides (though smaller than proteins) are too big to be absorbed through
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transmission decreases at a steady rate‚ until it reaches pH 8 where there is a steep increase from 30% to 39% as the enzyme has reached its optimum pH at 8. During the experiment in the boiling tube this pH had the deepest red colour as the most protein gelatine was broken up. This meant that in the colorimeter when testing to see what the light transmission‚ this pH let the least light through. For this enzyme as the pH increases the percentage of light transmission decreases until it gets to pH
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and ways to improve them. Proteins The Daily Recommended Intake Report states this writer should be getting
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we have to take every day‚ therefore we would like to identify the types of macromolecules that contain in some of the food or solution in order to maintain a healthy life. There are four groups of macromolecules which are carbohydrates‚ lipids‚ proteins and nucleic acid. They are mostly made up of hydrogen‚ carbon‚ oxygen‚ nitrogen‚ sulphur and phosphorus. 1. Carbohydrates Carbohydrates are organic compounds that with the combination of carbon‚ hydrogen and oxygen in a 1:2:1 ratio. Carbohydrates
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1 Grow Taller 4 Idiots 2 Copyright ©2009 by GrowTaller4Idiot.com All rights reserved. No part of this digital book shall be reproduced‚ stored in a retrieval system‚ or transmitted by any means‚ electronic‚ mechanical‚ photocopying‚ recording‚ or otherwise‚ without written permission from the publisher. No patent liability is assumed with respect to the use of the information contained herein. Although every precaution has been taken in the preparation of this digital book‚ the publisher
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energy source‚ especially in protein synthesis‚ also plays a role in the transfer of information from the environment to cells. cAMP – cyclic adenosine monophosphate‚ is a special nucleotide in which an additional bond forms between the sugar and phosphate group. Essential in hormones and the nervous system. genome – the complete set of DNA in a living organism‚ not all information is needed all of the time. Gene – the sequences of DNA that encode specific proteins are transcribed into RNA
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