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L6 Proteins of cereals and legumes - e
L6 Proteins of cereals and legumes - e

... At pH, below the isoelectric point of proteins, phytic acid phosphate esters bind to the cationic group of basic amino acids, for example, arginine, histidine and lysine, may form insoluble phytateprotein complexes. At a pH above the isoelectric point of proteins, the charge of proteins as well as ...
Oxidative degradation of glucose File
Oxidative degradation of glucose File

... • The high-energy phosphate of phosphoenol pyruvate is transferred to ADP by the enzyme pyruvate kinase to generate, at this stage, two molecules of ATP per molecule of glucose oxidized and enolpyruvate is formed. • Enolpyruvate formed is converted spontaneousny to the keto form pyruvate. This is an ...
MNS Blood Group System variants on Malarial Resistance
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... pigmented-trophozoite, and schizont stage parasites within the infected RBC. P. falciparum-infected erythrocytes express parasite-derived adhesion molecules on their surface, resulting in sequestration of pigmented-trophozoite and schizont stage-infected RBCs in the microvasculature. The asexual int ...
Exam III - chem.uwec.edu
Exam III - chem.uwec.edu

... b. SH3 (Src homology domain 3): The SH3 domain recognizes and binds to polyproline sequences. An example can be found on Grb-2 adaptor protein in the epidermal growth factor (EGF) signal transduction pathway ...
SAM Teachers Guide - RI
SAM Teachers Guide - RI

... hydrogen bonding, which plays a role in stabilizing the alpha helices and beta sheets within proteins. In addition, this activity discusses the forces of attraction that are at work on the intramolecular level of proteins as well as the intermolecular level (in the quaternary structure of proteins). ...
Problem Set 5 (Due February 25th) 1. Show how glucose can be
Problem Set 5 (Due February 25th) 1. Show how glucose can be

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Chapter 1: Prelude

... molecules are degraded to a few simple units that play a central role in metabolism, e.g. the acetyl unit of acetyl CoA. 3) The third stage consists of the citric acid cycle and oxidative phosphorylation. The latter term means the generation of ATP while electrons are transferred to O 2. This third ...
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... What does this imply about the values of Vmax and KM for a “perfect” enzyme? a). The values of both Vmax and KM are very high. b). The values of both Vmax and KM are very low. c). The value of Vmax is very high and the value of KM is very low. d). The value of Vmax is very low and the value of KM is ...
PPT_Biochemistry_Short_Course
PPT_Biochemistry_Short_Course

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Detoxikace endogenních a exogenních látek

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Fatty Acid Catabolism - Chemistry Courses: About

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Phosphofructokinase (PFK) Exercise
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... muscle  cramps.  Patients  with  this  genetic  disorder  are  advised  not  to  exercise  vigorously.    Explain  why  reduced   physical  activity  can  help  these  patients.     ...
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c - Holterman

... cytoplasm if translated by a free ribosme. • It might also be inserted into a membrane, if translated by a ribosome bound to the endoplasmic reticulum. • ***Polypeptides fold spontaneously into their 4 levels of structure (quaternary) , and they spontaneously join with other polypeptides to form the ...
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proteins - LSU Macro Sites

... if each amino acid can be in the alpha helix, beta sheet, or random coil configuration, then there are 3100 different possible conformational forms of this protein If each possibility is tried for 0.1 picoseconds (0.1x10-12 seconds),it would take 1.6x1027 years to try all possibilities This is many ...
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AP Bio Cellular Respiration Define

... _______________________________________________________________________ _______________________________________________________________________ Why are NAD+ and FAD +2 important to cellular respiration? _______________________________________________________________________ _________________________ ...
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RESPIRATION

... • Organic nutrients which are synthesized inside the plant by anabolic processes (photosynthesis,fat synthesis and protein synthesis). • Respired completely to CO2 and H2O. • Under natural conditions only carbohydrates are oxidized(floating respiration). • If carbohydrates are used up & shortage bec ...
Self-assembly of Proteins
Self-assembly of Proteins

... ‘folding’ which is associated with the structures of biomolecules like proteins and DNA (deoxyribonucleic acid). The molecular level self-assembly is a typical example of the ‘bottom-up’ approach in fabrication of nano-dimensional structures where molecules in the sub-nano range come together to for ...
Ch 17- Carboxylic Acids and their derivatives
Ch 17- Carboxylic Acids and their derivatives

... • With both groups of compounds, this initial attack is facilitated by the same factors: – The relative steric openness of the carbonyl carbon atom – The ability of the carbonyl oxygen atom to accommodate an electron pair of the C-O double bond ...
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A steroid/thyroid hormone receptor superfamily member in

... We also compared the putative 2C hormone binding domain that begins at amino acid 269 with the corresponding carboxyterminal domain of other superfamily members in order to assess whether it possesses sequences that resemble regions in some vertebrate receptors to which specific regulatory functions ...
Lipid Metabolizması - mustafaaltinisik.org.uk
Lipid Metabolizması - mustafaaltinisik.org.uk

... hydrophobic, neutral molecule made from reaction of OH group of glycerol and COO- group of fatty acids. Fatty acids are made up of a long hydrophobic hydrocarbon chain (highly reduced) and a carboxylic acid polar group. Different kinds of fatty acids play very important structural (as major componen ...
HW Answers pg. 241,2..
HW Answers pg. 241,2..

... concentration of A and T bases. Since A and T only share two double bonds between them, RNA polymerase will expend less energy in opening up the double helix at this point. ( Known as the tata region) ...
LEGO Lab - TeacherWeb
LEGO Lab - TeacherWeb

... • Metabolic Disorders: missing or defective enzymes cause over 200 human diseases including PKU and Tay-Sachs. Collectively they are termed metabolic diseases. Individuals with the disease either don’t produce any enzyme at all or they have a mutated enzyme with an altered shape such that it does no ...
Q1. Babies find it difficult to digest proteins in their food. Baby food
Q1. Babies find it difficult to digest proteins in their food. Baby food

... allow near to 37oC / body temperature where enzymes work best ...
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Amino acid synthesis

Amino acid synthesis is the set of biochemical processes (metabolic pathways) by which the various amino acids are produced from other compounds. The substrates for these processes are various compounds in the organism's diet or growth media. Not all organisms are able to synthesise all amino acids. Humans are excellent example of this, since humans can only synthesise 11 of the 20 standard amino acids (aka non-essential amino acid), and in time of accelerated growth, arginine, can be considered an essential amino acid.A fundamental problem for biological systems is to obtain nitrogen in an easily usable form. This problem is solved by certain microorganisms capable of reducing the inert N≡N molecule (nitrogen gas) to two molecules of ammonia in one of the most remarkable reactions in biochemistry. Ammonia is the source of nitrogen for all the amino acids. The carbon backbones come from the glycolytic pathway, the pentose phosphate pathway, or the citric acid cycle.In amino acid production, one encounters an important problem in biosynthesis, namely stereochemical control. Because all amino acids except glycine are chiral, biosynthetic pathways must generate the correct isomer with high fidelity. In each of the 19 pathways for the generation of chiral amino acids, the stereochemistry at the α-carbon atom is established by a transamination reaction that involves pyridoxal phosphate. Almost all the transaminases that catalyze these reactions descend from a common ancestor, illustrating once again that effective solutions to biochemical problems are retained throughout evolution.Biosynthetic pathways are often highly regulated such that building-blocks are synthesized only when supplies are low. Very often, a high concentration of the final product of a pathway inhibits the activity of enzymes that function early in the pathway. Often present are allosteric enzymes capable of sensing and responding to concentrations of regulatory species. These enzymes are similar in functional properties to aspartate transcarbamoylase and its regulators. Feedback and allosteric mechanisms ensure that all twenty amino acids are maintained in sufficient amounts for protein synthesis and other processes.
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