Solutions to 7.014 Quiz I
... d) You design many proteins that bind tightly in this pocket. One of them has isoleucine associated with region 3. You substitute phenylalanine for isoleucine and find this prevents binding of this protein. Phenylalanine and isoleucine form the same kinds of interactions with the binding pocket, so ...
... d) You design many proteins that bind tightly in this pocket. One of them has isoleucine associated with region 3. You substitute phenylalanine for isoleucine and find this prevents binding of this protein. Phenylalanine and isoleucine form the same kinds of interactions with the binding pocket, so ...
Ch 28 Reading guide
... 2. Where in the cell does FA synthesis take place? How does acetyl CoA get there? 3. What is the role of citrate lyase? What hormone leads to its activation? 4. The synthesis of palmitate requires _____ molecules of NADPH as well as __________. 5. The shuttle that returns oxaloacetate back to the ma ...
... 2. Where in the cell does FA synthesis take place? How does acetyl CoA get there? 3. What is the role of citrate lyase? What hormone leads to its activation? 4. The synthesis of palmitate requires _____ molecules of NADPH as well as __________. 5. The shuttle that returns oxaloacetate back to the ma ...
Chemical Organization of Life
... caused by the mixing of different pollutants with water in the ...
... caused by the mixing of different pollutants with water in the ...
Slide 1 - New Century Academy
... expression? (Quote from Watson and Crick p. 311) -Complimentary base pairs allow for an accurate replication mechanism -Basics of the DNA Replication 1. Double Helix 2. The two strands “unzip” 3. Free nucleotides bond to the parent DNA strands ...
... expression? (Quote from Watson and Crick p. 311) -Complimentary base pairs allow for an accurate replication mechanism -Basics of the DNA Replication 1. Double Helix 2. The two strands “unzip” 3. Free nucleotides bond to the parent DNA strands ...
Organic Molecule Cut-Outs
... 2. Arrange the cut-outs so that the Amino Acids form a protein (don't worry about the order of the amino acids). Include the equal sign; you will have an amino acid chain equaling a protein. 3. Glue down your cut-outs. 4. Glue the “monomers” and “polymers” labels under the appropriate structures. 5. ...
... 2. Arrange the cut-outs so that the Amino Acids form a protein (don't worry about the order of the amino acids). Include the equal sign; you will have an amino acid chain equaling a protein. 3. Glue down your cut-outs. 4. Glue the “monomers” and “polymers” labels under the appropriate structures. 5. ...
What is the type of bond between Oxygen and Hydrogen in water?
... the same chemical formula, but different structures (such as glucose and fructose) they are known as what? ...
... the same chemical formula, but different structures (such as glucose and fructose) they are known as what? ...
Protein Structure and Enzyme Function
... combinations of these 20 amino acids “letters.” For example, the word “CAT” is spelled “C,” “A,” “T” and it cannot be spelled any other way. Rearrange the letters and you get TAC or ACT, neither of which describe the fluffy, whiskered critter you’re trying to describe. The letters of the alphabet ar ...
... combinations of these 20 amino acids “letters.” For example, the word “CAT” is spelled “C,” “A,” “T” and it cannot be spelled any other way. Rearrange the letters and you get TAC or ACT, neither of which describe the fluffy, whiskered critter you’re trying to describe. The letters of the alphabet ar ...
Protein synthesis: Twenty three amino acids and
... will lead to the formation of a mutant polypeptide. The fidelity of the acylation process is ensured by sophisticated editing mechanisms associated with many aminoacyl-tRNA synthetases, in which incorrectly activated or charged amino acids are removed (reviewed in [6]). Although these editing activi ...
... will lead to the formation of a mutant polypeptide. The fidelity of the acylation process is ensured by sophisticated editing mechanisms associated with many aminoacyl-tRNA synthetases, in which incorrectly activated or charged amino acids are removed (reviewed in [6]). Although these editing activi ...
Chapter 3 Topic: Biomolecules Main concepts: •In chemistry, the
... • Proteins have up to four levels of structure. Primary structure is the order of the amino acids. Secondary structure is a repeating structure caused by hydrogen bonds between amino acids. Secondary structure usually takes the form of a helix (spiral) or a pleated sheet. Tertiary structure is when ...
... • Proteins have up to four levels of structure. Primary structure is the order of the amino acids. Secondary structure is a repeating structure caused by hydrogen bonds between amino acids. Secondary structure usually takes the form of a helix (spiral) or a pleated sheet. Tertiary structure is when ...
Biology: Macromolecule Review Worksheet
... 1. If you chemically combine this H and OH, what simple substance does it form? ...
... 1. If you chemically combine this H and OH, what simple substance does it form? ...
Kimia Karbon dan Polimer
... Keys: (i) structure of basic unit and role of carbon, (ii) polymer structure, (iii) function, and (iv) structure and therefore function is inherited Very diverse macromolecules with one trait: little or no affinity for water (define hydrophobic) since molecular structure is mostly hydrocarbons Three ...
... Keys: (i) structure of basic unit and role of carbon, (ii) polymer structure, (iii) function, and (iv) structure and therefore function is inherited Very diverse macromolecules with one trait: little or no affinity for water (define hydrophobic) since molecular structure is mostly hydrocarbons Three ...
Protein Structure HW Key
... 9. Describe an α helix. Be sure to describe what stabilizes it and where the R groups are. right handed helix 3.6 aa/turn. intrachain backbone H-bonding between amino hydrogen and carbonyl oxygen 4 aa away. meaning carbonyl O from aa-1 bonded to amino nitrogen from aa #5.. side chains perpendicular ...
... 9. Describe an α helix. Be sure to describe what stabilizes it and where the R groups are. right handed helix 3.6 aa/turn. intrachain backbone H-bonding between amino hydrogen and carbonyl oxygen 4 aa away. meaning carbonyl O from aa-1 bonded to amino nitrogen from aa #5.. side chains perpendicular ...
Ch. 2 Notes Organic Chemistry
... are a special type of protein that acts as a biological catalyst. Catalysts speed up a chemical reaction by lowering the Ea but are not affected themselves. * (This means that they do not become part of the product.) Enzymes can be affected by: changes in pH, temperature ...
... are a special type of protein that acts as a biological catalyst. Catalysts speed up a chemical reaction by lowering the Ea but are not affected themselves. * (This means that they do not become part of the product.) Enzymes can be affected by: changes in pH, temperature ...
Hein and Arena
... growing fatty acid chain bonds to a special acyl carrier protein, ACP-SH, which acts as a ‘handle’ to transfer the growing chain from one enzyme to another through the series of enzymecatalyzed reactions in the pathway. Coenzyme A is the carrier in fatty acid catabolism. ...
... growing fatty acid chain bonds to a special acyl carrier protein, ACP-SH, which acts as a ‘handle’ to transfer the growing chain from one enzyme to another through the series of enzymecatalyzed reactions in the pathway. Coenzyme A is the carrier in fatty acid catabolism. ...
2016_Heinrich-Wieland-Preis Schultz_PM_eng
... With three of them not coding for an amino acid and thus functioning as stop signals, DNA can code for 61 different amino acids. However, almost every organism uses the same set of just 20 amino acids – the so-called natural amino acids. Some of these are encoded by just one, others by up to six dif ...
... With three of them not coding for an amino acid and thus functioning as stop signals, DNA can code for 61 different amino acids. However, almost every organism uses the same set of just 20 amino acids – the so-called natural amino acids. Some of these are encoded by just one, others by up to six dif ...
Enzymes
... • Enzymes are proteins found in cells • Like all proteins, they are made out of amino acids • The most important part of an enzyme is its ACTIVE SITE The active site is the area where the substrate bonds ...
... • Enzymes are proteins found in cells • Like all proteins, they are made out of amino acids • The most important part of an enzyme is its ACTIVE SITE The active site is the area where the substrate bonds ...
What is a protein
... Function: Helps us get DNA information out of the nucleus. Made in the nucleus but found mostly in the cytoplasm. RNA is used to directly make protein. Consists of a) single strand of nucleotides b) ribose as the sugar chain c) a phosphate group d) four base pairs (one different from DNA.) Adeni ...
... Function: Helps us get DNA information out of the nucleus. Made in the nucleus but found mostly in the cytoplasm. RNA is used to directly make protein. Consists of a) single strand of nucleotides b) ribose as the sugar chain c) a phosphate group d) four base pairs (one different from DNA.) Adeni ...
Hormone such as testosterone/estrogen that could influences sex
... number of carbons in their backbone. For example five-carbon sugars are called _____pentoses____________________ while six-carbon sugars are called _____hexoses____________________. When two or three monosaccharides join together they are called ___oligosaccharides______________________. The bond th ...
... number of carbons in their backbone. For example five-carbon sugars are called _____pentoses____________________ while six-carbon sugars are called _____hexoses____________________. When two or three monosaccharides join together they are called ___oligosaccharides______________________. The bond th ...
Unit 2 Metabolism and Survival Glossary
... Active site the region of an enzyme molecule where the enzyme acts on the substrate Aestivation dormancy in response to high temperature or drought Anabolic a reaction which requires energy and builds up molecules Archaea group of single-celled microorganisms ATP synthase an enzyme which produces AT ...
... Active site the region of an enzyme molecule where the enzyme acts on the substrate Aestivation dormancy in response to high temperature or drought Anabolic a reaction which requires energy and builds up molecules Archaea group of single-celled microorganisms ATP synthase an enzyme which produces AT ...
Chp 7 DNA Structure and Gene Function 1
... 1. Describe the components of DNA and its three-dimensional structure 2. What is the relationship between a gene and a protein? 3. What are the steps of translation? 4. Where in the cell does translation occur? 5. What are the types of mutations, and how does each alter the encoded protein? ...
... 1. Describe the components of DNA and its three-dimensional structure 2. What is the relationship between a gene and a protein? 3. What are the steps of translation? 4. Where in the cell does translation occur? 5. What are the types of mutations, and how does each alter the encoded protein? ...
Word
... B) N5, N10-methylene tetrahydrofolate (methylene THF) C) N5-methyl tetrahydrofolate (methyl THF) D) S-adenosylmethionine (SAM) E) methotrexate 21) Identify the direct donor of the one-carbon units in the reaction shown below, catalyzed by phosphatidylethanolamine methyl transferase. ...
... B) N5, N10-methylene tetrahydrofolate (methylene THF) C) N5-methyl tetrahydrofolate (methyl THF) D) S-adenosylmethionine (SAM) E) methotrexate 21) Identify the direct donor of the one-carbon units in the reaction shown below, catalyzed by phosphatidylethanolamine methyl transferase. ...
Biosynthesis
Biosynthesis (also called biogenesis or anabolism) is a multi-step, enzyme-catalyzed process where substrates are converted into more complex products in living organisms. In biosynthesis, simple compounds are modified, converted into other compounds, or joined together to form macromolecules. This process often consists of metabolic pathways. Some of these biosynthetic pathways are located within a single cellular organelle, while others involve enzymes that are located within multiple cellular organelles. Examples of these biosynthetic pathways include the production of lipid membrane components and nucleotides.The prerequisite elements for biosynthesis include: precursor compounds, chemical energy (e.g. ATP), and catalytic enzymes which may require coenzymes (e.g.NADH, NADPH). These elements create monomers, the building blocks for macromolecules. Some important biological macromolecules include: proteins, which are composed of amino acid monomers joined via peptide bonds, and DNA molecules, which are composed of nucleotides joined via phosphodiester bonds.