CELLS – CH 3 HISTORY OF CELL DISCOVERIES -1665 – Cells were discovered and named by ____________. (in _________________) -1673 – ______________ was the “Father of _______________”. First to describe ______________________. Other scientists made discoveries which helped to create… The ___________ Theory: 1. _______________________________________________. (Schleiden and Schwann) 2. _________________________________________________________________. 3. __________________________________________________________
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Ribonucleic acid is popularly known as RNA. RNA is one of the three major macromolecules (along with DNA and proteins) that are essential for all known forms of life. RNA stands for ribonucleic acid. It is an important molecule with long chains of nucleotides. A nucleotide contains a nitrogenous base‚ a ribose sugar‚ and a phosphate. Just like DNA‚ RNA is vital for living beings. The main job of RNA is to transfer the genetic code need for the creation of proteins from the nucleus to the ribosome
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Bio Notes 9/5/2012 * Biology- Study of living things * Characteristics of living organisms * Consist of one or more cells * Unicellular- one cell able to carry out life ex. Bacteria * Multicellular- Many cells‚ specialized cells * Observations with microscopes lead to Cell Theory‚ Robert Hook * All cells come from preexisting cells * All cells are similar in chemical composition * Chemical reactions occur within
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mixtures of dna/ proteins based on what type of gel is used. Agarose gels are typically used for separating DNA and RNA. While polyacrylamide is typically used to separate out proteins and tiny amounts of nucleic acids. Gel electrophoresis of macromolecules separates molecules based on size shape length and charge. Gel electrophoresis is facilitated by the
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The Human Genome Project (HGP) and bioinformatics Initiated in October 1990 and completed in April 2003‚ the Human Genome Project (HGP) was a 13-year project coordinated by the U.S. Department of Energy and the National Institutes of Health. Its goals were to identify all the approximately 25‚000-30‚000 genes in the human genome‚ to determine the sequences of the 3 billion chemical base pairs that make up the human genome‚ to store the information that resulted from the project in databases‚
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related compounds‚ including isomers. For example‚ the enzyme sucrase will only act on sucrose and will not bind to any other disaccharide. The molecular recognition of enzymes is due to the fact that they are proteins‚ which are defined as being macromolecules with unique three-dimensional conformations. Therefore‚ the specificity of enzymes is a consequence of its shape which results from its amino acid sequence. The enzyme binds to the substrate at a region known as the active site‚ a groove on the
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For the scientist’s experiment the scientist will be experimenting with additives and gel. We will be adding different substances such as table salt‚ citric acid‚ and sugar. The scientist’s problem statement is “What kind of substances make gel the strongest?” The independent variable will be the different additives (Table salt‚ citric acid‚ and sugar) which will be added using tablespoons. The dependent variable is the strength of the gel which will be measured using a scale of 10. The constant
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In this report i will be writing brief description on the functions of the main cell components of the body cell. The cell membrane : is something that lets some things in and some things out of the cell. It is an outer cover for the cell. If the cell membrane was non existences the cell would spill all over the place. Its function is to protect the integrity of the interior of the cell by allowing certain substances into the cell‚ while keeping other substances out. It is composed of a thin
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laboratory assistant in a research laboratory may also be helpful. Molecular biologists may also want to consider postdoctoral work when considering a research career. Daily Activities/Responsibilities: The field of molecular biology studies macromolecules and the macromolecular mechanisms found in living things. Molecular biologists design molecular laboratory experiments‚ oversee their execution‚ and interprets the results. Molecular biologists conduct research on mechanisms of gene expression
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Genetics‚ Evolution and Diversity (GED) Prelim 1st Sem AY 2013-14 Research Portfolio 1. Discuss in words or contrast in graphical/sketch form the differences of Prokaryotic cells from the Eukaryotic cells. 2. Describe in words or show in graphical/sketch form the general features of the cell Nucleus. 3. Briefly discuss each of the five functions of cell nucleus. 4. Illustrate in words or graphical/sketch form the structure (highlight the nucleotide components) of the DNA
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