Hypothesis c. Experiment d. Data collection e. Analysis f. Conclusion g. Communication 3. What is biology? a. Biology means “the study of life.” b. Characteristics of life 1) Complex, organized (hierarchy of biology) a) Atoms b) Molecules c) Macromolecules d) Organelles e) Cells f) Tissues g) Organs h) Organ systems i) Organisms j) Populations k) Communities l) Ecosystems m) Biospheres 2) Grow and reproduce 3) Respond to external stimuli 4) Acquire and use energy and materials and change
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the function of mitochondria, chloroplasts, nuclei, and lysosomes. Mitochondria facilitate aerobic cellular respiration, chloroplasts is where photosynthesis occurs, nuclei holds the cell’s genetic material, and lysosomes recycle and break down macromolecules. What is the evidence for endosymbiosis? The similar size and composition shows that mitochondria were initially a bacteria. Mitochondria were engulfed. The aerobic heterotrophic bacteria were kept inside a larger, heterotrophic eukaryotic
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found in the nucleus. Electrons are negatively charged particles whirling around the atom. An isotope is an atom that has extra or fewer neutrons than the number of protons. If carbon gains a proton it becomes nitrogen. 3. What are the major macromolecules in living systems? Explain their unique bonding patterns and functional groups. Carbohydrates – contain mostly carbon, hydrogen, and oxygen. They are the primary fuel for running all of the cellular machinery and form the structure of cells in
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• The 2 reasons for this is… o Need water for biochemical reactions o Things move around in cells (transportation) • The remaining 10 % is inorganic and organic materials o Organic materials: Proteins, carbohydrates, lipids, nucleaic acids(macromolecules- major molecules) o Inorganic materials: salts Cell theory • Two German scientists who were credited for the cell theory: Schawn, Schleiden, Virchow o All living organisms are composed of cells. They can either be unicellular or multicellular
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neutral fats, waxes, phospholipids, and glycolipids. The fatty acids with no carbon-carbon double bonds are called saturated. The ones that have two or more double bonds are called polyunsaturated. Proteins Proteins are large biomolecules, or macromolecules. They are made up of hundreds or thousands of smaller units called amino acids, which are attached to one another in long chains. There are 20 different types of amino acids that can be combined to make a protein. Eight amino acids are essential
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content of a food is commonly determined by organic solvent extraction methods. The accuracy of these methods greatly depends on the solubility of the lipid in the solvent used and the ability to separate the lipids fom complexes with other macromolecules. The lipid content of a food determined by extraction with one solvent may be quite different from the content determined with another solvent of the different polarity. In addition to solvent extraction methods there are non-solvent wet
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ABSTRACT Your abstract must include the major objective(s) for this investigation along with a summary of what you learned or concluded from your results. Your abstract should be in paragraph form. Gel Electrophoresis is a process by which macromolecules like DNA are separated based on their size. DNA is carried with electricity in an apparatus across an agarose gel matrix. The gel slab is burrowed in a conductive solution, allowing DNA to be measured for analytical and diagnostic purposes
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| | | | Exploring the Effects of Enzymes on Fat Using Phenol RedVeronica ChengSBI 3U0Turner05 December 2014 | | Introduction Enzymes are proteins which help break down chemical substances such as other proteins, carbohydrates or fats that are necessary for life (Novozymes, 2014). In this experiment, the effects of water, pancreatic juice, and trypsin solutions were observed on milk. The use of the phenol red indicator helps detect the pH level. The lower pH level will cause the colour
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virtual chemistry book. This theory differs from the Induced Fit theory, which states that when a substrate binds to the active site, the active site’s shape slightly changes to perfectly fit the substrate. Just like a protein, the class of macromolecule that an enzyme belongs to, the function of an enzyme depends greatly on its tertiary structure. If the structure of an enzyme changes, the shape of its active site changes also. That means the enzyme will not being able to bind with the substrates
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Why We Study the Cell and Its Components The cell is the basic unit of all living organisms. Some organisms like bacteria have only one cell while other organisms are multi cellular. It is important to study the cell and its components because it enables understanding of our own life and opens up windows of opportunity for the future generations. Understanding cells and their component functions allows for better understanding of disease and the possibility of cures or better treatment options
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