Partner: Chantelle Date: Thursday‚ Nov 7th Question 1. What happens to protein when they are exposed to very high temperatures? Proteins exposed to very high temperatures become denatured. Meaning they change shape. If a protein is denatured‚ it usually can’t function the way it is supposed to 2. Contrast carbohydrates and proteins in relation to their chemical structure and their functions in the organism? Similarities: both contain a carbon
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Biological Molecule Atoms it Contains Monomer(s) Function(s) in Living Organisms Carbohydrates C‚ H‚ and O Monosaccharides Source of energy Lipid C‚ H‚ and O Glycerol and fatty acids Cushion and insulate organs; builds cell membranes Protein C‚ H‚ O‚ N‚ and S Amino Acids Helps chemical reactions‚ provides support and structure‚ provides transport within bodies and provides movement of body Nucleic acids C‚ H‚ O‚ N‚ and P Necleotides Stores and transmits genetic information
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What is the minimum you need to know about proteins 1. Made of long strings of amino acids 2. 20 amino acids all with different properties‚ hydrophobic‚ hydrophyllic polar‚ and hydrophyllic charged (+) and (-) 3. Two amino acids (AA)are linked by dehydration synthesis 4. Primary‚ secondary‚ tertiary and quaternary structures 5. Proteins can be enzymes‚ cell signals‚ structural or hormones 6. A protein has direction‚ the first is the N terminus where you find an amino group. The last is the
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that helps to convert phenylalanine‚ an amino acid that is found in foods‚ into tyrosine‚ an amino acid that creates melanin (Letcher‚ MA & Hunt‚ PhD‚ CGC‚ 2016). Phenylalanine is a vital necessity for the human body because it helps to construct proteins for the body and without phenylalanine hydroxylase to convert phenylalanine‚ the result is the buildup of phenylalanine inside the body. PKU generally affects the brain and the blood stream. There are different types of PKU such as classic PKU‚ moderate
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the double membrane are separated by a gap of 20 to 40 nm‚ called the perinuclear space. The nucleus contains the cell’s DNA. This complex molecule carries the information‚ which the cell needs to divide and carry out all its cellular processes. Inside eukaryotic cells‚ the DNA is associated with histone proteins‚ and is called chromatin. When the DNA is transcribed into RNA the structure of the chromatin changes to allow the RNA polymerase enzyme to access the DNA strand. When the cell divides to
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secondary structure of a protein form when amino acids repeat within a certain range of polypeptides. If there is a mess up with the order of amino acids‚ there will be a mess up of the interactions between the backbones (secondary structure). If this is messed up‚ then the tertiary structure‚ which is the interactions of the side chains‚ will also be messed up. Ultimately‚ the quaternary structure‚ which is the overall shape of the protein‚ will also be messed up. If a protein loses its shape‚ it will
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Name: _Leroy Johnson __________________________________ Date: ______________Comprehensive Study Guide. Test will only be Multiple choice 1. The feature that most clearly separates eukaryotes from prokaryotes is the presence of _______ in eukaryotic cells. A) ribosomes B) oxidative phosphorylation C) DNA molecules -D) a nucleus 2. Cytoplasmic organelles are - A) absent in prokaryotic cells; present in eukaryotic cells. B) present in both prokaryotic and eukaryotic cells
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References: *1 =http://www.courses.psu.edu/fd_sc/fd_sc400_jnc3/proteins/enzymes.htm *2 =http://userpages.wittenberg.edu/s04.bdoane *3 =http://www.lsbu.ac.uk/biology/enztech/inhibition.html *4 = http://www-saps.plantsci.cam.ac.uk/records/rec259.htm *5 =http://www.coursework.info/i/19208.html *6 =http://www.accessexcellence
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Proteins are arguably the most important things that people know the least about. As OpenStax CNX puts it‚ “Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules”. Proteins are “Macromolecules that contain nitrogen as well as carbon‚ hydrogen‚ and oxygen”(Miller‚ Kenneth R.‚ and Joseph S. Levine 48). Macromolecules are exceedingly large molecules that can be made up of several lesser molecules called proteins.
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Background: Lipid and protein composition varies in tissue types. Results: When comparing liver‚ muscle‚ and adipose tissue‚ adipose tissue had the highest percent lipid and liver tissue had the highest percent protein. Conclusion: Based on analysis of the gels‚ the liver appeared to have the most variety in proteins when comparing liver‚ muscle‚ and adipose tissue. Significance: In order to determine the composition of a tissue‚ specific macromolecules can be extracted‚ quantified‚ and analyzed
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