Enzymes I - eCurriculum
... Do not follow Michaelis-Menten kinetics (hyperbolic), they show sigmoideal plots Have two or more subunits The substrate binding sites exhibit co-operativity Are modified by reversible non-covalent binding of regulators Allosteric activators lock the enzyme in a conformation that has high affinity f ...
... Do not follow Michaelis-Menten kinetics (hyperbolic), they show sigmoideal plots Have two or more subunits The substrate binding sites exhibit co-operativity Are modified by reversible non-covalent binding of regulators Allosteric activators lock the enzyme in a conformation that has high affinity f ...
You Light Up My Life - Hawaii Community College
... - Chemoautotrophs- use inorganics such as sulfides and nitrites for energy ...
... - Chemoautotrophs- use inorganics such as sulfides and nitrites for energy ...
Enzyme - Northwest ISD Moodle
... The activation energy for these substrates to bind together has been lowered by the enzyme. ...
... The activation energy for these substrates to bind together has been lowered by the enzyme. ...
Nutrition
... temperature whereas the shell (the skin) has the lowest temp 3. Blood serves as the major heat-exchange agent between the core and the shell A) When blood is deep in the organs, heat loss is minimal B) When blood is in the skin capillaries, heat loss is at its maximum ...
... temperature whereas the shell (the skin) has the lowest temp 3. Blood serves as the major heat-exchange agent between the core and the shell A) When blood is deep in the organs, heat loss is minimal B) When blood is in the skin capillaries, heat loss is at its maximum ...
File
... structure of enzymes to denature. Poisons often work by denaturing enzymes or occupying the enzyme's active site S9 that it does not function. In some cases, enzymes , will not function without cofactors, such as vitamins or trace elements. In the four graphs below, the rate of reaction or degree of ...
... structure of enzymes to denature. Poisons often work by denaturing enzymes or occupying the enzyme's active site S9 that it does not function. In some cases, enzymes , will not function without cofactors, such as vitamins or trace elements. In the four graphs below, the rate of reaction or degree of ...
pH and enzymes in cheese making File
... Although they take part in the reaction, they are not used up Because enzymes are proteins, they are denatured by heat or some chemicals Denaturing involves a change of shape in the enzyme molecule so that it cannot combine with the substrate Individual enzymes work best at a particular temperature ...
... Although they take part in the reaction, they are not used up Because enzymes are proteins, they are denatured by heat or some chemicals Denaturing involves a change of shape in the enzyme molecule so that it cannot combine with the substrate Individual enzymes work best at a particular temperature ...
Cellular Respiration
... tube). This reaction occurred very quickly. – A cell cannot use heat to do cellular work, not to mention the fact that this large increase in temp would be dangerous! ...
... tube). This reaction occurred very quickly. – A cell cannot use heat to do cellular work, not to mention the fact that this large increase in temp would be dangerous! ...
Cellular Respiration - Cathkin High School
... • When the ATP is low again, the enzyme works as normal, speeding up glycolysis. The citric acid cycle can also be controlled through inhibition • Inhibition also occurs when there is a high concentration of citrate. • When the levels of citrate drop, the enzyme is no longer inhibited, speeding up t ...
... • When the ATP is low again, the enzyme works as normal, speeding up glycolysis. The citric acid cycle can also be controlled through inhibition • Inhibition also occurs when there is a high concentration of citrate. • When the levels of citrate drop, the enzyme is no longer inhibited, speeding up t ...
Biol 1020: Making ATP
... C6H12O6 + 2 ADP +2 Pi + 4 NAD+ + 2 CoA 2 acetyl-CoA + 2 CO2 + 2 ATP + 4 NADH + 4 H+ + 2 H2O ...
... C6H12O6 + 2 ADP +2 Pi + 4 NAD+ + 2 CoA 2 acetyl-CoA + 2 CO2 + 2 ATP + 4 NADH + 4 H+ + 2 H2O ...
Vitamins and Coenzymes - Rose
... uptake and synthesis). Nicotinic acid (but not nicotinamide) reduces release of free fatty acids from adipose tissue, probably via binding to a receptor that also binds hydroxycarboxylic acids, and has been used to reduce plasma cholesterol. However, some individuals cannot tolerate the high levels ...
... uptake and synthesis). Nicotinic acid (but not nicotinamide) reduces release of free fatty acids from adipose tissue, probably via binding to a receptor that also binds hydroxycarboxylic acids, and has been used to reduce plasma cholesterol. However, some individuals cannot tolerate the high levels ...
PP 6.1-6.6 - Trimble County Schools
... glucose to ATP – Cellular respiration produces 38 ATP molecules from each glucose molecule – Other foods (organic molecules) can be used as a source of energy as well ...
... glucose to ATP – Cellular respiration produces 38 ATP molecules from each glucose molecule – Other foods (organic molecules) can be used as a source of energy as well ...
File
... Occurs in the inner membrane of mitochondia 1. The electron transport chain consists of protein molecules found attached to the inner membrane of the mitochondria 2. NADH and FADH2 from Glycolysis and the Citric Acid pathways release high-energy electrons to the electron transport chain on the mitoc ...
... Occurs in the inner membrane of mitochondia 1. The electron transport chain consists of protein molecules found attached to the inner membrane of the mitochondria 2. NADH and FADH2 from Glycolysis and the Citric Acid pathways release high-energy electrons to the electron transport chain on the mitoc ...
Part (II) Nitrogenous molecules metabolism
... deaminase deficiency. sterile “bubble” environment. T cell deficiency but B cell normal: purine nucleoside phosphorylase deficiency. Many chemotherapeutic agents target enzymes in the nucleotide biosynthetic pathway. ...
... deaminase deficiency. sterile “bubble” environment. T cell deficiency but B cell normal: purine nucleoside phosphorylase deficiency. Many chemotherapeutic agents target enzymes in the nucleotide biosynthetic pathway. ...
Cellular Respiration
... Process by which cells convert the energy in food (usually glucose) into usable ATP. ...
... Process by which cells convert the energy in food (usually glucose) into usable ATP. ...
Cellular Respiration
... Process by which cells convert the energy in food (usually glucose) into usable ATP. ...
... Process by which cells convert the energy in food (usually glucose) into usable ATP. ...
Islamic University of Gaza Advanced Biochemistry Faculty of
... production of reduced coenzymes and ATP. Conversely if the citric acid cycle ran too slowly, ATP would not be generated fast enough to sustain the cell. By looking at the changes in free energy of the reactions of the citric acid cycle, it is clear that there are three irreversible steps. These thre ...
... production of reduced coenzymes and ATP. Conversely if the citric acid cycle ran too slowly, ATP would not be generated fast enough to sustain the cell. By looking at the changes in free energy of the reactions of the citric acid cycle, it is clear that there are three irreversible steps. These thre ...
SI Worksheet #10 (Chapter 9) BY 123 Meeting 10/8/2015 Chapter 9
... During the last four steps of glycolysis, the phosphate groups of the molecules are transferred to ADP by the enzyme phosphoglycerate kinase creating ATP. This is done via the process of substrate-level-phosphorylation. 10. The three metabolic stages of cellular respiration 1. Glycolysis 2. Citric A ...
... During the last four steps of glycolysis, the phosphate groups of the molecules are transferred to ADP by the enzyme phosphoglycerate kinase creating ATP. This is done via the process of substrate-level-phosphorylation. 10. The three metabolic stages of cellular respiration 1. Glycolysis 2. Citric A ...
Water Soluble Vitamins
... form in food hydrolysis in small intestine to free vitamin absorbed in duodenum nicotinic acid protein bound in corn – requires alkali treatment (lime) to release niacin ...
... form in food hydrolysis in small intestine to free vitamin absorbed in duodenum nicotinic acid protein bound in corn – requires alkali treatment (lime) to release niacin ...
chap18 oxidative phosphorylation
... Oxidative pphosphorylation produces 30 of the 32 molecules of ATP that are formed when glucose is oxidized to CO2 and H2O. The process is conceptually easy but mechanistically very difficult. The electron flow from NADH and FADH2 to oxygen through protein complexes leads to pumping of protons outsid ...
... Oxidative pphosphorylation produces 30 of the 32 molecules of ATP that are formed when glucose is oxidized to CO2 and H2O. The process is conceptually easy but mechanistically very difficult. The electron flow from NADH and FADH2 to oxygen through protein complexes leads to pumping of protons outsid ...
Section 2.5 Enzymes
... • Each enzyme has a unique 3-D shape, including a surface groove called an ACTIVE SITE. • One or more molecules called SUBSTRATES chemically bond to the enzyme’s active site. • When joined they are called an ENZYME-SUBSTRATE COMPLEX • Changes in how the atoms are bonded occur resulting in new molecu ...
... • Each enzyme has a unique 3-D shape, including a surface groove called an ACTIVE SITE. • One or more molecules called SUBSTRATES chemically bond to the enzyme’s active site. • When joined they are called an ENZYME-SUBSTRATE COMPLEX • Changes in how the atoms are bonded occur resulting in new molecu ...
Nicotinamide adenine dinucleotide
Nicotinamide adenine dinucleotide (NAD) is a coenzyme found in all living cells. The compound is a dinucleotide, because it consists of two nucleotides joined through their phosphate groups. One nucleotide contains an adenine base and the other nicotinamide. Nicotinamide adenine dinucleotide exists in two forms, an oxidized and reduced form abbreviated as NAD+ and NADH respectively.In metabolism, nicotinamide adenine dinucleotide is involved in redox reactions, carrying electrons from one reaction to another. The coenzyme is, therefore, found in two forms in cells: NAD+ is an oxidizing agent – it accepts electrons from other molecules and becomes reduced. This reaction forms NADH, which can then be used as a reducing agent to donate electrons. These electron transfer reactions are the main function of NAD. However, it is also used in other cellular processes, the most notable one being a substrate of enzymes that add or remove chemical groups from proteins, in posttranslational modifications. Because of the importance of these functions, the enzymes involved in NAD metabolism are targets for drug discovery.In organisms, NAD can be synthesized from simple building-blocks (de novo) from the amino acids tryptophan or aspartic acid. In an alternative fashion, more complex components of the coenzymes are taken up from food as the vitamin called niacin. Similar compounds are released by reactions that break down the structure of NAD. These preformed components then pass through a salvage pathway that recycles them back into the active form. Some NAD is also converted into nicotinamide adenine dinucleotide phosphate (NADP); the chemistry of this related coenzyme is similar to that of NAD, but it has different roles in metabolism.Although NAD+ is written with a superscript plus sign because of the formal charge on a particular nitrogen atom, at physiological pH for the most part it is actually a singly charged anion (charge of minus 1), while NADH is a doubly charged anion.