Ribosomes are found on the surface of this structure. Central Vacuole Rough ER Chloroplasts ~Golgi Bodies 8. The function of the nucleus is to produce proteins. contain the cytoplasm. ~contain and replicate DNA. add sugars to proteins. 9. The function of ribosomes is to synthesize RNA. DNA. lipids. ~protein. 10. Which of the following structures maintains cell shape‚ anchors the organelles‚ and moves parts of the cell? Hydrogen bonds ~Cytoskeleton Cilia Golgi
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that focuses on proteins. The goal of the lab is to map the proteins of the nuclear envelope using BioID. This may sound like a simple goal but figuring out where each protein is located but it is a daunting task. With the lab trying to map the proteins‚ it is necessary to develop efficient ways of seeing how proteins interact. In the past years of the Roux lab‚ they have developed a system to see which proteins interact with other proteins‚ through a slightly mutated protein‚ BioID (BirA).
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used were 2‚4‚7‚9 and 10. All of these solutions affected the beetroot‚ but the most acidic solutions were the ones that did the most damage to the membrane. This is because the ph affects the proteins within the phospho lipid bi-layer. The acidic ph breaks the hydrogen bonds therefore denaturing the proteins and allowing beetroot pigment to secrete form the cell. 7. The ethanol solutions that were used were 11%‚ 25% and 50% ethanol. The beetroot cell was almost immediately affected by the 50% alcohol
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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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OF PROTIENS Aim: The aim of this experiment is to identify proteins from a complex mixture using the gel filtration technique also known as size exclusion chromatography. This technique is widely used by biochemists when proteins larger than the pores are excluded from the column and the smaller molecules elute last and then collected in test tubes for examination by spectroscopic techniques. The red/brown proteins‚ in particular‚ will be observed closely as they can either by haemoglobin
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9/4/2014 Fillers within Protein Supplements Local gym enthusiasts are trying to reveal if certain new dietary supplements will actually help them gain muscle mass by providing high levels of protein. Before the users consume the new supplements they want to know if they are indeed true protein supplements or if the manufacturer used fillers as a mean to make more profit. “Do the new supplements contain fillers such as sugar and starch or are they pure protein?” This is important
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1.Carbohydrates Consists of CnH2xOx • Include sugars • Classified into groups based on the number of carbon atoms per molecule. • Classes of Carbohydrates o Monosaccharides ▪ Simple sugars o Disaccharides ▪ Compound sugars o Polysaccharides ▪ Complex sugars a. Monosaccharides • Simple sugars • Contain about 3 to 6 carbon atoms per molecule o Trioses
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EXPERIMENT 1: Proteins -polypeptides compose of > 50 amino acids Functions 1. Enzymes or subunits of enzymes-enhancing the rates of reactions 2. Structural or Mechanical roles 3. Immune response roles 4. Storage and transport of substances 5. Source of amino acids for organisms that cannot synthesize amino acids naturally ISOLATION- disruption of cell membranes to release cell contents; separation for other contaminants 1. CENTRIFUGATION 2. SALTING OUT-water
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Pre-Reading Notes (Very Short Introduction - Chapter 5; Fundamentals of Forensic Science – Chapter 11): • Red and white cell blood antigens are polymorphic: they exist in more than one form and everyone inherits one or more forms of each of them • A successful DNA profile makes it possible to reach a conclusion that a DNA sample came from a specific individual‚ giving law enforcement and forensic science a new‚ powerful identification tool that complements fingerprints and other methods of identification
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things maintain themselves c. Living things have the capacity to reproduce d. Living things are part of populations that remain constant from one generation to the next 2. The macromolecules made from carefully folded strings of amino acids are a. Proteins b. Carbohydrates c. Lipids d. Nucleic acid 3. One difference between prokaryotic and eukaryotic cells is a. Prokaryotic cells have a nucleus‚ whereas eukaryotic cell do not b. Eukaryotic cells have existed on earth far longer than prokaryotic cells
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