Enzymes
... Why to have a big protein for those few “active” amino acids? The “extra” aa are making the scaffold that position the “active” aa into the exact 3D configuration required for action. But why does not a protein use neighboring aa to form the AS? Those aa are often sterically constrained from adopti ...
... Why to have a big protein for those few “active” amino acids? The “extra” aa are making the scaffold that position the “active” aa into the exact 3D configuration required for action. But why does not a protein use neighboring aa to form the AS? Those aa are often sterically constrained from adopti ...
enzymes - iLearning Centre
... Highly specific that is each enzyme can only catalyse one kind of substrate Needed in small quantities because they are not used up but released at the end of a reaction Enzyme-catalyses reaction are reversible Can be slowed down or completely stopped by inhibitors. -e.g. : heavy metals such as lead ...
... Highly specific that is each enzyme can only catalyse one kind of substrate Needed in small quantities because they are not used up but released at the end of a reaction Enzyme-catalyses reaction are reversible Can be slowed down or completely stopped by inhibitors. -e.g. : heavy metals such as lead ...
Factors Affecting the Rate of Enzyme Reaction in Liver
... too slowly to be useful. Enzymes speed up these reactions by bringing the reactants into close proximity and helping their interaction. Liver contains a specific enzyme called catalase. When hydrogen peroxide (H2O2) is added to liver, a chemical reaction occurs which results in the products of oxyge ...
... too slowly to be useful. Enzymes speed up these reactions by bringing the reactants into close proximity and helping their interaction. Liver contains a specific enzyme called catalase. When hydrogen peroxide (H2O2) is added to liver, a chemical reaction occurs which results in the products of oxyge ...
Modified and Modifying Enzymes
... • isozyme - (or iso-enzyme) an enzyme that performs the same or similar function of another enzyme. This generally arises due to similar but different genes encoding these enzymes and frequently is tissue-type specific or dependent on the growth or developmental ...
... • isozyme - (or iso-enzyme) an enzyme that performs the same or similar function of another enzyme. This generally arises due to similar but different genes encoding these enzymes and frequently is tissue-type specific or dependent on the growth or developmental ...
Enzymes
... They have remarkable catalytic power and specificity. Nature selected some protein molecules to be enzymes. There are very specific cases when other biomacromolecules can also carry catalytic functions, like RNA (ribozymes) or antibodies (abzymes). Catalysis takes place on a distinct part of the pro ...
... They have remarkable catalytic power and specificity. Nature selected some protein molecules to be enzymes. There are very specific cases when other biomacromolecules can also carry catalytic functions, like RNA (ribozymes) or antibodies (abzymes). Catalysis takes place on a distinct part of the pro ...
Open file
... Irreversible inhibition is a category on its own. Unlike reversible inhibitors they destroy the overall tertiary structure of the enzyme rendering them completely ineffective. (6) Some irreversible have no similar structure related relationships to a substrate. They bind covalently like non-competit ...
... Irreversible inhibition is a category on its own. Unlike reversible inhibitors they destroy the overall tertiary structure of the enzyme rendering them completely ineffective. (6) Some irreversible have no similar structure related relationships to a substrate. They bind covalently like non-competit ...
Cofactors and Inhibitors
... Enzymes that work inside cells are sometimes affected by noncompetitive inhibitors. Explain how a non-competitive inhibitor affects the activity of an enzyme. If the inhibitor attaches to the enzyme the enzyme will change shape making it denatured and so the reaction will not occur. And example of a ...
... Enzymes that work inside cells are sometimes affected by noncompetitive inhibitors. Explain how a non-competitive inhibitor affects the activity of an enzyme. If the inhibitor attaches to the enzyme the enzyme will change shape making it denatured and so the reaction will not occur. And example of a ...
2. Enzyme activity - Lectures For UG-5
... • Enzymes concentrations are always performed in zeroorder kinetics with substrate in sufficient excess to ensure that not more than 20% of the available substrate is converted to product. • Any coenzymes also must be in excess. • NAD or NADH is often convenient as a reagent for a coupled- enzyme as ...
... • Enzymes concentrations are always performed in zeroorder kinetics with substrate in sufficient excess to ensure that not more than 20% of the available substrate is converted to product. • Any coenzymes also must be in excess. • NAD or NADH is often convenient as a reagent for a coupled- enzyme as ...
Enzymes - Factors Affecting Enzyme Activity
... reacts in a particular amount of time” (usually per second) ...
... reacts in a particular amount of time” (usually per second) ...
• Warm-up What are the four macromolecules and their function?
... B. Enzymes decrease the activation energy needed for a reaction to start C. Enzymes do not alter activation energy of chemical reactions D. Enzymes initially decrease activation energy than increase it ...
... B. Enzymes decrease the activation energy needed for a reaction to start C. Enzymes do not alter activation energy of chemical reactions D. Enzymes initially decrease activation energy than increase it ...
A group on the enzyme acts as an acid or base
... Donate a proton (act as a general acid) or Accept a proton (act as a general base). This enables enzyme to avoid unstable charged intermediates in reaction, so as to keep the transition state in a stable (low-energy) state But: A group that donates a proton (acts as a general acid) in catalysis has ...
... Donate a proton (act as a general acid) or Accept a proton (act as a general base). This enables enzyme to avoid unstable charged intermediates in reaction, so as to keep the transition state in a stable (low-energy) state But: A group that donates a proton (acts as a general acid) in catalysis has ...
ARABINANASE ACTIVITY IN PECT
... arabinofuranosyl residues, leaving linear 1,5- α -arabinan. This ...
... arabinofuranosyl residues, leaving linear 1,5- α -arabinan. This ...
Enzyme structure and function
... 2. An enzyme speeds up the rate of a specific reaction, without being used up. 3. What does each enzyme do? Complete the sentences about specific enzymes. a. Lipase breaks down lipids (fats) to form fatty acids and glycerol. b. Amylase breaks down starch to form maltose or simple sugars. c. Protease ...
... 2. An enzyme speeds up the rate of a specific reaction, without being used up. 3. What does each enzyme do? Complete the sentences about specific enzymes. a. Lipase breaks down lipids (fats) to form fatty acids and glycerol. b. Amylase breaks down starch to form maltose or simple sugars. c. Protease ...
Course Notes
... ‘emergency energy’. The amino acids are deaminated by removing the amine group. This leaves a carbohydrate like substance that can be used as a substrate to produce ATP. The waste product NH3 (ammonia) is toxic and is converted to urea in the liver. Both NH3 and urea need to excreted from the body i ...
... ‘emergency energy’. The amino acids are deaminated by removing the amine group. This leaves a carbohydrate like substance that can be used as a substrate to produce ATP. The waste product NH3 (ammonia) is toxic and is converted to urea in the liver. Both NH3 and urea need to excreted from the body i ...
Homeostasis Invertase
... level of the protein (e.g. enzyme). In fact, there is coordination across these levels to maintain homeostasis of critical factors such as body temperature, ionic concentrations (like protons and calcium), and "building blocks" like amino acids and nucleic acids. From an evolutionary perspective, th ...
... level of the protein (e.g. enzyme). In fact, there is coordination across these levels to maintain homeostasis of critical factors such as body temperature, ionic concentrations (like protons and calcium), and "building blocks" like amino acids and nucleic acids. From an evolutionary perspective, th ...
PBHS AP Biology Lab 2
... illustrate the themes of this class. These labs are very important as the AP Test will have least one essay question and several multiple choice questions based on these labs. ...
... illustrate the themes of this class. These labs are very important as the AP Test will have least one essay question and several multiple choice questions based on these labs. ...
Biology - WordPress.com
... Introduction: Today you’ll observe the action of the enzyme amylase on starch. Amylase changes starch into a simpler form the sugar maltose, which is soluble in water. Amylase is in our saliva, and begins to act on starchy food while in our mouth. Exposure to heat, extreme pH (acid or base) & an ino ...
... Introduction: Today you’ll observe the action of the enzyme amylase on starch. Amylase changes starch into a simpler form the sugar maltose, which is soluble in water. Amylase is in our saliva, and begins to act on starchy food while in our mouth. Exposure to heat, extreme pH (acid or base) & an ino ...
Enzyme Control of Metabolic Pathways
... It is essential that the various biochemical processes occurring within an organism are adaptable. This means that the rates of biochemical reactions need to vary in response to change. In humans, for instance, these reactions need to cope with a sudden abundance of glucose in cells after a carbohyd ...
... It is essential that the various biochemical processes occurring within an organism are adaptable. This means that the rates of biochemical reactions need to vary in response to change. In humans, for instance, these reactions need to cope with a sudden abundance of glucose in cells after a carbohyd ...
Enzyme Article
... keratin, the protein of nails, hair and feathers. The second large group of proteins covers the biologically active proteins. Most of these catalyze biochemical reactions in cells. These are enzymes, the heart of Novozymes' business. All known enzymes are proteins and can occur in the body in very s ...
... keratin, the protein of nails, hair and feathers. The second large group of proteins covers the biologically active proteins. Most of these catalyze biochemical reactions in cells. These are enzymes, the heart of Novozymes' business. All known enzymes are proteins and can occur in the body in very s ...
Lesson 5: Enzymes
... 1. What are enzymes? 2. What functions of enzymes in our body? 3. What are the types of enzymes? 4. How does enzyme work? ...
... 1. What are enzymes? 2. What functions of enzymes in our body? 3. What are the types of enzymes? 4. How does enzyme work? ...
Enzymes
... The irreversible alteration to the bonds that holds the shape of the enzyme. Enzyme thus loses its original 3-D structure. The active site loses its shape. ...
... The irreversible alteration to the bonds that holds the shape of the enzyme. Enzyme thus loses its original 3-D structure. The active site loses its shape. ...
Factors affecting Enzyme Activity
... If it is the limiting factor, increasing concentration will increase therate of reaction up to a point, after which any increase will not affectthe rate of reaction. This is because it will no longer be the limiting factor and another factor will be limiting the maximum rate of reaction. ...
... If it is the limiting factor, increasing concentration will increase therate of reaction up to a point, after which any increase will not affectthe rate of reaction. This is because it will no longer be the limiting factor and another factor will be limiting the maximum rate of reaction. ...