CYCLES Ecosystems are maintained by cycling nutrients through biogeochemical cycles; some are gas and others are sedimentary. Consider the nitrogen and phosphorus cycles; a) identify whether each is a gas or sedimentary cycle; b) what significant impacts does each have on human society.
Prepare a power-point presentation with speaker notes discussing on Structure and functions of macro-molecules.
Structure and functions of Macromolecules Prepare a power point presentation with speaker notes discussing on Structure and functions of macromolecules.
What is the source of the electrons in the electron transport chain in the chloroplast? And where do the electrons end up once they pass through the chain?
Unit 2 Assignment Questions: 1. (2) What is the source of electrons in the mitochondrial electron transport chain? And where do the electrons end up once they pass through the chain? 2. (2) Molecules called uncouplers (such as dinitrophenol) poke holes in the inner mitochondrial membrane. What effect would this have on aerobic respiration? 3. […]
Which of the solutions is a positive control? Which contains more protein (C – N bonds), egg albumen or amino acid solution?
Proteins: Biuret test Proteins are made of amino acids, each of which has an amino group (-NH2), a carboxyl (acid) group (-COOH), and a variable side chain. A peptide bond forms between the amino group of one amino acid and the carboxyl group of an adjacent amino acid. Proteins are identified by a Biuret test. […]
How does the color compare between tubes 1 and 2? Why? What are the functions of nucleic acids in living organisms?
Nucleic Acids: Dische diphenylamine test. DNA and RNA are nucleic acids made of nucleotide subunits. DNA can be identified chemically with the Dische diphenyl- amine test. Acidic conditions convert deoxyribose to a molecule that binds with diphenylamine to form a blue complex. The intensity of the blue color is proportional to the concentration of DNA. […]
Which of the food products tested contain large amounts of lipid? What are the functions of lipids in living organisms?
Lipids: Grease spot test. A simpler test for lipids is based on their ability to produce translucent grease marks on un glazed paper. See results below. Several foods & their test results for the Grease-spot test are presented in the table below: Which of the food products tested contain large amounts of lipid? What are […]
Compare tubes 1 and 2. What would you expect the distribution of the dye to be with respect to the separated water and oil?
Lipids: Sudan IV test. Lipids include a variety of molecules that dissolve in non-polar solvents such as ether, acetone, methanol, or ethanol, but not as well in polar solvents such as water. Triglycerides (fats) are abundant lipids made of glycerol and three fatty acids. Tests for lipids are based on a lipid’s ability to selectively […]
What does this tell you about how sugars are stored in onions and potatoes? What are the functions of carbohydrates in living organisms?
BIOLOGICALLY IMPORTANT MOLECULES LAB Introduction: There are 4 categories of organic compounds found in living organisms: Carbohydrates, Proteins, Lipids & Nucleic Acids. Each of these macromolecules is made of smaller subunits. These subunits are linked by dehydration synthesis, which is an energy-requiring process in which a molecule of water is removed and the two subunits […]
Create a research paper discussing on an antibiotic drug and chemical disinfectant for the protozoan Leishmania donovani.
New Antibiotic Drug and Chemical Disinfectant Create a research paper discussing on an antibiotic drug and chemical disinfectant for the protozoan Leishmania donovani.
In a research paper provide the parents with general information about the syndrome, prognosis, and most importantly, the genetics behind it. Include how you would identify this syndrome?
Research Paper You have a patient that was recently diagnosed with cat-eye syndrome, and the parents are very confused about this disorder and particularly about the genetics. The parents took an AP biology course previously and do have some knowledge of the terms. They are having some difficulty understanding recombination and how this gene duplication […]