Atoms, Ions and Molecules
... In molecules, atoms share a pair of electrons to make chemical bonds with each other. Molecules made from only one kind of atom are molecules of an element. Molecules made from different kinds of a ...
... In molecules, atoms share a pair of electrons to make chemical bonds with each other. Molecules made from only one kind of atom are molecules of an element. Molecules made from different kinds of a ...
Wetlands, and biogeochemical redox reactions in aquatic systems
... • Example: net reaction for aerobic oxidation of organic matter: CH2O + O2 → CO2 + H2O • In this case, oxygen is the electron acceptor – the half-reaction is: O2 + 4H+ + 4e- → 2H2O • Different organisms use different electron acceptors, depending on availability due to local redox potential • T ...
... • Example: net reaction for aerobic oxidation of organic matter: CH2O + O2 → CO2 + H2O • In this case, oxygen is the electron acceptor – the half-reaction is: O2 + 4H+ + 4e- → 2H2O • Different organisms use different electron acceptors, depending on availability due to local redox potential • T ...
Organic Molecules
... Carbohydrates include sugars and their polymers. The simplest carbohydrates are monosaccharides, or single sugars. Disaccharides are double sugars formed from two monosaccharides joined by a condensation reaction. Polysaccharides are macromolecule polymers formed from a few to a few thousand monosac ...
... Carbohydrates include sugars and their polymers. The simplest carbohydrates are monosaccharides, or single sugars. Disaccharides are double sugars formed from two monosaccharides joined by a condensation reaction. Polysaccharides are macromolecule polymers formed from a few to a few thousand monosac ...
Biology - PHA Science
... Grading: As usual, each question is worth 5 points! If you answer all 5 questions, you’ll get grades for the best 4 (but you must do #1). 1. Proteins are essential for all life on earth. a) Diagram an amino acid and label its functional groups. What is the importance of the R group? b) Describe the ...
... Grading: As usual, each question is worth 5 points! If you answer all 5 questions, you’ll get grades for the best 4 (but you must do #1). 1. Proteins are essential for all life on earth. a) Diagram an amino acid and label its functional groups. What is the importance of the R group? b) Describe the ...
Chemistry Final Exam Review 2006-2007
... 24. Identify which ones have dipole-dipole forces? PBr3, N2, CF4, HBr, H2O 25. Identify which ones have London dispersion forces? , N2, CF4, HBr, SO2 26. Identify which ones have hydrogen bonding? HCl,, H2, HBr, H2O, CH4 27. Define the physical properties of Viscosity, Surface Tension, Boiling Point ...
... 24. Identify which ones have dipole-dipole forces? PBr3, N2, CF4, HBr, H2O 25. Identify which ones have London dispersion forces? , N2, CF4, HBr, SO2 26. Identify which ones have hydrogen bonding? HCl,, H2, HBr, H2O, CH4 27. Define the physical properties of Viscosity, Surface Tension, Boiling Point ...
Year 10 Science Chemistry Examination November 2011 Part A
... Fred has been doing an experiment to test the law of conservation of mass. He heated steel wool (iron metal) carefully in a crucible. He weighed the crucible before and after the reaction which is shown by the equation below. ...
... Fred has been doing an experiment to test the law of conservation of mass. He heated steel wool (iron metal) carefully in a crucible. He weighed the crucible before and after the reaction which is shown by the equation below. ...
The AP BIOLOGY
... sheet. The Alpha helix is a delicate oil held together by hydrogen bonding between every fourth peptide bond. A pleated sheet is when the polypeptide chain folds back and forth or where two regions of the chain lie parallel to each other. Explain how weak interactions and disulfide bridges contribut ...
... sheet. The Alpha helix is a delicate oil held together by hydrogen bonding between every fourth peptide bond. A pleated sheet is when the polypeptide chain folds back and forth or where two regions of the chain lie parallel to each other. Explain how weak interactions and disulfide bridges contribut ...
6 The periodic table: group 2 (Topic 4)
... [e] Since ionisation energies are always endothermic, the definition can be expressed in terms of the energy required to remove one electron. 2 The nuclear charge increases down the group, but the number of inner shielding electrons increases by the same amount. However, the atomic radius increases ...
... [e] Since ionisation energies are always endothermic, the definition can be expressed in terms of the energy required to remove one electron. 2 The nuclear charge increases down the group, but the number of inner shielding electrons increases by the same amount. However, the atomic radius increases ...
Biological Molecules
... (tertiary structures) are associated with and function with each other. Example – hemoglobin (4 – 3 dimensional shapes & a central heme (iron containing) component. Hemoglobin actually exhibits all 4 structural levels – it consists of 2 pairs of tertiary structures held together by hydrogen bonds. P ...
... (tertiary structures) are associated with and function with each other. Example – hemoglobin (4 – 3 dimensional shapes & a central heme (iron containing) component. Hemoglobin actually exhibits all 4 structural levels – it consists of 2 pairs of tertiary structures held together by hydrogen bonds. P ...
2007 - SolPass
... relationship between the concentration of alcohol dissolved in water and its density. The relationship was expected to be linear. Which of the data points most likely resulted from an error in procedure? F G H J ...
... relationship between the concentration of alcohol dissolved in water and its density. The relationship was expected to be linear. Which of the data points most likely resulted from an error in procedure? F G H J ...
Chapter 4 - Cellular Metabolism 4.1 Introduction (p. 74) A. A living
... Energy is stored while converting ADP to ATP; when energy is released, ATP becomes ADP, ready to be regenerated into ATP. 4.5 Metabolic Pathways (p. 78; Fig. 4.7) A. The enzymes controlling either an anabolic or catabolic sequence of reactions must act in a specific order. B. A sequence of enzyme-co ...
... Energy is stored while converting ADP to ATP; when energy is released, ATP becomes ADP, ready to be regenerated into ATP. 4.5 Metabolic Pathways (p. 78; Fig. 4.7) A. The enzymes controlling either an anabolic or catabolic sequence of reactions must act in a specific order. B. A sequence of enzyme-co ...
workshops: absences: examinations: textbook
... Objectives: To emphasise that amino acids join to form polypeptide chains (proteins), and how the sequences of these chains, the Primary Structure, are unique to any given protein. To reveal how these chains can form distinct structural features within a protein, the Secondary Structure, including h ...
... Objectives: To emphasise that amino acids join to form polypeptide chains (proteins), and how the sequences of these chains, the Primary Structure, are unique to any given protein. To reveal how these chains can form distinct structural features within a protein, the Secondary Structure, including h ...
Chemistry of Life 3a Puzzle Paragraph
... The four most common chemical elements of life are carbon, hydrogen, oxygen, and nitrogen. They are apart of all the main organic compounds in living organisms. 1. ____________ (S) Needed to make two of the twenty amino acids that proteins contain. 2. ____________ (Ca) Acts as a messenger, binding t ...
... The four most common chemical elements of life are carbon, hydrogen, oxygen, and nitrogen. They are apart of all the main organic compounds in living organisms. 1. ____________ (S) Needed to make two of the twenty amino acids that proteins contain. 2. ____________ (Ca) Acts as a messenger, binding t ...
Intro to Biology review - Brookings School District
... Many genetic diseases result from the production of enzymes that are not shaped correctly. How could a change in an enzyme’s shape cause it to work poorly or not at all? Changing its shape can alter the shape of the active site so substrate doesn’t fit which affects how the enzyme works ...
... Many genetic diseases result from the production of enzymes that are not shaped correctly. How could a change in an enzyme’s shape cause it to work poorly or not at all? Changing its shape can alter the shape of the active site so substrate doesn’t fit which affects how the enzyme works ...
sbs-017 basic biochemistry - Personal Webspace for QMUL
... miss a practical and submit a report based on another student’s results without the agreement of the module organiser (otherwise it is plagiarism). Also, you are not allowed to copy some part or all of another student’s report and present it as your own work (this is also plagiarism). For students w ...
... miss a practical and submit a report based on another student’s results without the agreement of the module organiser (otherwise it is plagiarism). Also, you are not allowed to copy some part or all of another student’s report and present it as your own work (this is also plagiarism). For students w ...
Metalloprotein
Metalloprotein is a generic term for a protein that contains a metal ion cofactor. A large number of all proteins are part of this category.