Power Point 2 - G. Holmes Braddock
... When carbohydrates are consumed the body breaks them down into glucose. Then the glucose moves into your bloodstream and goes to your organs and tissues, where it is used to fuel cellular activity. Simple carbohydrates occur when there is more glucose in the body than your cells need, it is converte ...
... When carbohydrates are consumed the body breaks them down into glucose. Then the glucose moves into your bloodstream and goes to your organs and tissues, where it is used to fuel cellular activity. Simple carbohydrates occur when there is more glucose in the body than your cells need, it is converte ...
ENZYMES (Basic Concepts and Kinetics) (Chapter 8)
... • is the region where the substrate binds • contains residue that directly participate in making or breaking of bonds (formation of transition state) • is the region where activation energy is lowered Common features 1. Active site is a three dimensional cleft 2. Takes up a small part of the total v ...
... • is the region where the substrate binds • contains residue that directly participate in making or breaking of bonds (formation of transition state) • is the region where activation energy is lowered Common features 1. Active site is a three dimensional cleft 2. Takes up a small part of the total v ...
Biochem Review
... 8. They are ___________ - they can be used over, and over again because they are not destroyed and their shape does not change 9. They are ____________ - SHAPE MATTERS!! 10. What is the function of enzymes in biological systems? Why are they necessary for all biochemical reactions? 11. Explain why e ...
... 8. They are ___________ - they can be used over, and over again because they are not destroyed and their shape does not change 9. They are ____________ - SHAPE MATTERS!! 10. What is the function of enzymes in biological systems? Why are they necessary for all biochemical reactions? 11. Explain why e ...
Protein: A polymer of amino acids Amino Acid Structure
... Immune cells bind to cancer cells and “hangs on” until a machrophage can destroy it Keeps tissues from falling apart ...
... Immune cells bind to cancer cells and “hangs on” until a machrophage can destroy it Keeps tissues from falling apart ...
Unit 2 Test Retake Review Sheet – Cell Biology Answer questions
... Why are macromolecules important components of living things? Macromolecules are polymers composed of repeating sub-units called ___________. Identify the basic monomer for each type of macromolecule. Describe the structure of carbohydrates, proteins, lipids, and nucleic acids Distinguish the functi ...
... Why are macromolecules important components of living things? Macromolecules are polymers composed of repeating sub-units called ___________. Identify the basic monomer for each type of macromolecule. Describe the structure of carbohydrates, proteins, lipids, and nucleic acids Distinguish the functi ...
Enzymes - Westgate Mennonite Collegiate
... - high temps may denature (unfold) the enzyme. 2. pH (most like 6 - 8 pH near neutral) 3. Ionic concentration (salt ions) ...
... - high temps may denature (unfold) the enzyme. 2. pH (most like 6 - 8 pH near neutral) 3. Ionic concentration (salt ions) ...
Enzymes - Westgate Mennonite Collegiate
... - high temps may denature (unfold) the enzyme. 2. pH (most like 6 - 8 pH near neutral) 3. Ionic concentration (salt ions) ...
... - high temps may denature (unfold) the enzyme. 2. pH (most like 6 - 8 pH near neutral) 3. Ionic concentration (salt ions) ...
3. Proteins
... Key components of reactions that give energy, and make, or break down compounds Only needed in small amounts ...
... Key components of reactions that give energy, and make, or break down compounds Only needed in small amounts ...
y syste m dreul io
... Proteins that speed up chemical reactions e.g. digestion. Which FACTORS affects enzymes ? Temperature and pH ...
... Proteins that speed up chemical reactions e.g. digestion. Which FACTORS affects enzymes ? Temperature and pH ...
lec1-introduction
... Réaumur - studies on the digestion of buzzardsdigestion is a chemical rather than a physical process Kühne - term 'enzyme': Greek "in yeast" Hans & Eduard Buchner – filtrates of yeast extracts could catalyse fermentation! No need to living cells E. Fischer – “lock and key” hypothesis Henri – first s ...
... Réaumur - studies on the digestion of buzzardsdigestion is a chemical rather than a physical process Kühne - term 'enzyme': Greek "in yeast" Hans & Eduard Buchner – filtrates of yeast extracts could catalyse fermentation! No need to living cells E. Fischer – “lock and key” hypothesis Henri – first s ...
Biochemistry Test Review KEY
... 12. What is the name of the structure above and what is its function? Nucleic acid 13. What is a common element found in all organic compounds? Carbon 14. What effect does pH levels have on a certain enzyme? Slows or speeds up rate of reaction, as well as the modifies the enzyme’s shape 15. Describ ...
... 12. What is the name of the structure above and what is its function? Nucleic acid 13. What is a common element found in all organic compounds? Carbon 14. What effect does pH levels have on a certain enzyme? Slows or speeds up rate of reaction, as well as the modifies the enzyme’s shape 15. Describ ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... IV. Answer the following, each within 50 words only (5 x 1 = 5marks) (16) Distinguish between activity and specific activity of enzymes. (17) Why does the introduction of sulphide bridges increase enzyme stability? (18) Mention the role of coenzymes in a catalytic reaction. (19) Explain the signifi ...
... IV. Answer the following, each within 50 words only (5 x 1 = 5marks) (16) Distinguish between activity and specific activity of enzymes. (17) Why does the introduction of sulphide bridges increase enzyme stability? (18) Mention the role of coenzymes in a catalytic reaction. (19) Explain the signifi ...
presentation source
... • V=Vmax [S/(S+Km)] • Transform above equation = LineweaverBurk plot – 1/V = (Km/Vmax) x (1/S) + (1/Vmax) – equation for a straight line • where 1/Vmax= y intercept • and (1/S) = x-intercept ...
... • V=Vmax [S/(S+Km)] • Transform above equation = LineweaverBurk plot – 1/V = (Km/Vmax) x (1/S) + (1/Vmax) – equation for a straight line • where 1/Vmax= y intercept • and (1/S) = x-intercept ...
Energy & Enzymes Chapter 2-4
... Enzyme is free to start process again. Your body turn enzymes “on” and “off” at specific ...
... Enzyme is free to start process again. Your body turn enzymes “on” and “off” at specific ...
Due: 2015. 10. 12. 11:00 am (월)
... (a) Enzyme can be classified into 6 groups. Briefly explain about each group. (b) Classify the enzyme listed below according to above explanation. ...
... (a) Enzyme can be classified into 6 groups. Briefly explain about each group. (b) Classify the enzyme listed below according to above explanation. ...
Enzymes
... if temp. too low—slow reaction if temp. too high—denature enzyme -- physiological pH of 7 (too high, low denature enzyme) --- salt and metal concentration w/in cell --- substrate (a reactant converted to product by enzyme) concentration w/in cell Enzyme works by using an active site, which binds t ...
... if temp. too low—slow reaction if temp. too high—denature enzyme -- physiological pH of 7 (too high, low denature enzyme) --- salt and metal concentration w/in cell --- substrate (a reactant converted to product by enzyme) concentration w/in cell Enzyme works by using an active site, which binds t ...
SI Worksheet 10 1. What does coupling reactions mean? The
... 14. Another word for a non-protein organic molecule is ______________. What is an example of one? Coenzymes, NAD+) “nicotinamide adenine dinucleotide”, they help enzymes do their thing 15. What is an important example of a cofactor in the body? Mg 2+, most of the cofactors are metal ions that are i ...
... 14. Another word for a non-protein organic molecule is ______________. What is an example of one? Coenzymes, NAD+) “nicotinamide adenine dinucleotide”, they help enzymes do their thing 15. What is an important example of a cofactor in the body? Mg 2+, most of the cofactors are metal ions that are i ...
Enzyme Notes
... without energy being added to the reactants. The energy required to get a chemical reaction started is called ___________________ _________________________________________ that speed up chemical reactions that take place inside of cells (they are known as catalyst) Enzymes speed up reactions by ____ ...
... without energy being added to the reactants. The energy required to get a chemical reaction started is called ___________________ _________________________________________ that speed up chemical reactions that take place inside of cells (they are known as catalyst) Enzymes speed up reactions by ____ ...
Enzymes are catalysts in living things
... Enzymes function in a small range of conditions • Disruptions in homeostasis can prevent enzymes from functioning. – Enzymes function best in a small range of conditions (remember importance of water’s special properties – water is a buffer). – Changes in temperature and pH can break hydrogen bonds ...
... Enzymes function in a small range of conditions • Disruptions in homeostasis can prevent enzymes from functioning. – Enzymes function best in a small range of conditions (remember importance of water’s special properties – water is a buffer). – Changes in temperature and pH can break hydrogen bonds ...
8.4 Enzymes speed up metabolic reactions by
... active site and is held there by weak interactions Side chains (R groups) of a few of the amino acids that make up the active site catalyze the conversion of substrate to product Product departs Repeats Most metabolic reactions are reversible and an enzyme can catalyze both forwards and backwards Th ...
... active site and is held there by weak interactions Side chains (R groups) of a few of the amino acids that make up the active site catalyze the conversion of substrate to product Product departs Repeats Most metabolic reactions are reversible and an enzyme can catalyze both forwards and backwards Th ...
Enzymes (Quick Questions) 1. What are proteins? 2. Describe 4
... A substance that speeds up a chemical reaction without being changed or used up itself. Enzymes of special biological catalysts that speed up reactions. ...
... A substance that speeds up a chemical reaction without being changed or used up itself. Enzymes of special biological catalysts that speed up reactions. ...
Enzyme
Enzymes /ˈɛnzaɪmz/ are macromolecular biological catalysts. Enzymes accelerate, or catalyze, chemical reactions. The molecules at the beginning of the process are called substrates and the enzyme converts these into different molecules, called products. Almost all metabolic processes in the cell need enzymes in order to occur at rates fast enough to sustain life. The set of enzymes made in a cell determines which metabolic pathways occur in that cell. The study of enzymes is called enzymology.Enzymes are known to catalyze more than 5,000 biochemical reaction types. Most enzymes are proteins, although a few are catalytic RNA molecules. Enzymes' specificity comes from their unique three-dimensional structures.Like all catalysts, enzymes increase the rate of a reaction by lowering its activation energy. Some enzymes can make their conversion of substrate to product occur many millions of times faster. An extreme example is orotidine 5'-phosphate decarboxylase, which allows a reaction that would otherwise take millions of years to occur in milliseconds. Chemically, enzymes are like any catalyst and are not consumed in chemical reactions, nor do they alter the equilibrium of a reaction. Enzymes differ from most other catalysts by being much more specific. Enzyme activity can be affected by other molecules: inhibitors are molecules that decrease enzyme activity, and activators are molecules that increase activity. Many drugs and poisons are enzyme inhibitors. An enzyme's activity decreases markedly outside its optimal temperature and pH.Some enzymes are used commercially, for example, in the synthesis of antibiotics. Some household products use enzymes to speed up chemical reactions: enzymes in biological washing powders break down protein, starch or fat stains on clothes, and enzymes in meat tenderizer break down proteins into smaller molecules, making the meat easier to chew.