QUESTION ONE
... The rate of activity changes depending on temperature. At lower temperatures there is less energy so there are less collisions between the active site and substrate therefore fewer reactions. As the temperature increases more collisions occur and therefore a greater amount of reactions. If the tempe ...
... The rate of activity changes depending on temperature. At lower temperatures there is less energy so there are less collisions between the active site and substrate therefore fewer reactions. As the temperature increases more collisions occur and therefore a greater amount of reactions. If the tempe ...
macromolecule webquest
... http://www.wisc-online.com/objects/index_tj.asp?objid=AP13204 1. Lipids are ___________________molecules that are insoluble in water. 2. What are fatty acid chains? 3. Define saturated fatty acids 4. In what structures are phospholipids found? 5. What is cholesterol used for in our bodies? From www. ...
... http://www.wisc-online.com/objects/index_tj.asp?objid=AP13204 1. Lipids are ___________________molecules that are insoluble in water. 2. What are fatty acid chains? 3. Define saturated fatty acids 4. In what structures are phospholipids found? 5. What is cholesterol used for in our bodies? From www. ...
(pt=2) What is an acid?
... For short answer questions, be brief; full sentences are not necessary. Point value for each question is in parentheses. If a question is not clear to you, please ask for clarification. ...
... For short answer questions, be brief; full sentences are not necessary. Point value for each question is in parentheses. If a question is not clear to you, please ask for clarification. ...
FES 100 - Introduction to Forest Biology Exam 1: 100 points October
... or not living. a)______________________________________________________________________________ b)______________________________________________________________________________ c)______________________________________________________________________________ ...
... or not living. a)______________________________________________________________________________ b)______________________________________________________________________________ c)______________________________________________________________________________ ...
Chapter 4: Cellular metabolism
... reactions within cells by lowering the amount of energy required to start these reactions • Enzymes speed the rates of metabolic reactions (catalysis) ...
... reactions within cells by lowering the amount of energy required to start these reactions • Enzymes speed the rates of metabolic reactions (catalysis) ...
video slide
... have 8 valence electrons. • This is called the octet rule. o Helium: 8 valence electrons (stable) o Potassium: 1 valence electron • Reactive: Gives away the electron easily o Chlorine: 7 valence electrons • Reactive: Takes an electron easily ...
... have 8 valence electrons. • This is called the octet rule. o Helium: 8 valence electrons (stable) o Potassium: 1 valence electron • Reactive: Gives away the electron easily o Chlorine: 7 valence electrons • Reactive: Takes an electron easily ...
ENZYME WEBQUEST Name
... 18. The conformation of an enzyme is maintained by interactions between the various ___________________ _______________ that compose it, and this conformation is sensitive to ________________________________________. Two important influences are _________________ and ________________. When an enzyme ...
... 18. The conformation of an enzyme is maintained by interactions between the various ___________________ _______________ that compose it, and this conformation is sensitive to ________________________________________. Two important influences are _________________ and ________________. When an enzyme ...
Table of Contents
... To be effective they must be present at the same concentration as their substrates. They increase the equilibrium constant for a reaction, thus favoring product formation. They lower the activation energy for the reaction of S to P. They bind to substrates, but are never covalently attached to subst ...
... To be effective they must be present at the same concentration as their substrates. They increase the equilibrium constant for a reaction, thus favoring product formation. They lower the activation energy for the reaction of S to P. They bind to substrates, but are never covalently attached to subst ...
Chapter 8 - Trimble County Schools
... Substrate Specificity of Enzymes • The reactant that an enzyme acts on is called the enzyme’s substrate • The enzyme binds to its substrate, forming an enzyme-substrate complex • The active site is the region on the enzyme where the substrate binds • Induced fit of a substrate brings chemical group ...
... Substrate Specificity of Enzymes • The reactant that an enzyme acts on is called the enzyme’s substrate • The enzyme binds to its substrate, forming an enzyme-substrate complex • The active site is the region on the enzyme where the substrate binds • Induced fit of a substrate brings chemical group ...
NAME: : :______ Honors Biology Reading Guide – Chapter 6
... 48. What is the optimal pH for pepsin? ______ For trypsin?______ 49. What happens to enzymatic activity when pH falls outside the preferred value? Explain. ...
... 48. What is the optimal pH for pepsin? ______ For trypsin?______ 49. What happens to enzymatic activity when pH falls outside the preferred value? Explain. ...
![K m + [S]](http://s1.studyres.com/store/data/008289247_1-97eed219b6e242b1a447e591c5c01f05-300x300.png)
K m + [S]
... which the substrate is bound by multiple weak interactions. Two models have been proposed to explain how an enzyme binds its substrate: the lock-and –key model and the induced-fit model. ...
... which the substrate is bound by multiple weak interactions. Two models have been proposed to explain how an enzyme binds its substrate: the lock-and –key model and the induced-fit model. ...
Exclusion of the cognate substrate from the leucyl-tRNA
... Aminoacyl-tRNA synthetases (aaRS) are enzymes that use ATP to couple tRNAs with their cognate amino acids. Aminoacylated-tRNAs (aa-tRNAs) are substrates for ribosomal protein synthesis, whose fidelity thus relies on the accuracy of aa-tRNA formation. These enzymes exercise amino acid substrate speci ...
... Aminoacyl-tRNA synthetases (aaRS) are enzymes that use ATP to couple tRNAs with their cognate amino acids. Aminoacylated-tRNAs (aa-tRNAs) are substrates for ribosomal protein synthesis, whose fidelity thus relies on the accuracy of aa-tRNA formation. These enzymes exercise amino acid substrate speci ...
Chemistry of Life
... Base – any cmpd. that increases the # of hydroxide (OH-) ions when dissolved in water Example: ...
... Base – any cmpd. that increases the # of hydroxide (OH-) ions when dissolved in water Example: ...
File
... Every energy transfer or transformation makes the universe more disordered (increases entropy) Entropy is a quantitative measure of disorder that is proportional to randomness ...
... Every energy transfer or transformation makes the universe more disordered (increases entropy) Entropy is a quantitative measure of disorder that is proportional to randomness ...
Macro-molecule study guide / worksheet
... c. Polysaccharide - complex carbohydrate made up of chains of monosaccharides ex. Starch - food storage compound found in plants Cellulose - makes up the cell wall of plants Glycogen - a food storage compound in animals ...
... c. Polysaccharide - complex carbohydrate made up of chains of monosaccharides ex. Starch - food storage compound found in plants Cellulose - makes up the cell wall of plants Glycogen - a food storage compound in animals ...
Exam #2
... photoheterotrophic bacteria in the surface of the open ocean compared to bacteria that are heterotrophs (recall that the open ocean has very low supply of organic nutrients; i.e. it’s oligotrophic). Know where different amphibolic pathway intermediates shunt off for biosynthesis of amino acids, nucl ...
... photoheterotrophic bacteria in the surface of the open ocean compared to bacteria that are heterotrophs (recall that the open ocean has very low supply of organic nutrients; i.e. it’s oligotrophic). Know where different amphibolic pathway intermediates shunt off for biosynthesis of amino acids, nucl ...
Lesson 7.2: Critical Reading Name___________________
... catabolic reaction is the breakdown of glucose, which releases energy that cells need to carry out life processes. Endothermic reactions in organisms are called anabolic reactions. These reactions build up bigger molecules from smaller ones. An example of an anabolic reaction is the joining of amino ...
... catabolic reaction is the breakdown of glucose, which releases energy that cells need to carry out life processes. Endothermic reactions in organisms are called anabolic reactions. These reactions build up bigger molecules from smaller ones. An example of an anabolic reaction is the joining of amino ...
Lecture_09_Metabolic_systems - Home | CISB-ECN
... active site by weak interactions, such as hydrogen bonds and ionic bonds. 3 Active site (and R groups of its amino acids) can lower EA and speed up a reaction by • acting as a template for substrate orientation, • stressing the substrates and stabilizing the transition state, • providing a favorable ...
... active site by weak interactions, such as hydrogen bonds and ionic bonds. 3 Active site (and R groups of its amino acids) can lower EA and speed up a reaction by • acting as a template for substrate orientation, • stressing the substrates and stabilizing the transition state, • providing a favorable ...
Discovery of Enzymes
... reaction Group Specific: The enzyme acts only on molecules having a particular functional group Linkage Specific: The enzyme acts on a particular type of chemical bond Stereo-chemical Specific: The enzyme acts on a particular stereo or optical isomer ...
... reaction Group Specific: The enzyme acts only on molecules having a particular functional group Linkage Specific: The enzyme acts on a particular type of chemical bond Stereo-chemical Specific: The enzyme acts on a particular stereo or optical isomer ...
The Energy of Life The living cell Is a miniature factory where
... active site by weak interactions, such as hydrogen bonds and ionic bonds. 3 Active site (and R groups of its amino acids) can lower EA and speed up a reaction by • acting as a template for substrate orientation, ...
... active site by weak interactions, such as hydrogen bonds and ionic bonds. 3 Active site (and R groups of its amino acids) can lower EA and speed up a reaction by • acting as a template for substrate orientation, ...
RNA Molecules
... high or low heat, salinity, or pH. * Their enzymes have evolved under these conditions and are useful in industrial processes that are too harsh to use other enzymes.* ...
... high or low heat, salinity, or pH. * Their enzymes have evolved under these conditions and are useful in industrial processes that are too harsh to use other enzymes.* ...
Biochem-EnzymesL
... reaction Group Specific: The enzyme acts only on molecules having a particular functional group Linkage Specific: The enzyme acts on a particular type of chemical bond Stereo-chemical Specific: The enzyme acts on a particular stereo or optical isomer ...
... reaction Group Specific: The enzyme acts only on molecules having a particular functional group Linkage Specific: The enzyme acts on a particular type of chemical bond Stereo-chemical Specific: The enzyme acts on a particular stereo or optical isomer ...
Chapter 3 An Introduction to Organic Compounds - Linn
... Sometimes denaturation is reversible (sometimes not) ...
... Sometimes denaturation is reversible (sometimes not) ...
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.