Mitochondria - Take in glucose via proteins that pass the plasma membrane and after it journey through the cytoskeleton to the mitochondria inside the cytoplasm. Endoplasmic Reticulum - Both ER types are covered in making essential cellular segments. For the most part in charge of the combination and handling of proteins that are either emitted from the cell or that end up stuck in the plasma film. The lipids made in the SER are joined with phosphorous to make phospholipids‚ the most inexhaustible
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Cells | Cells that do not have a nucleus or other membrane-bound organelles. | | Eukaryotic Cells | Cells that have a nucleus and other membrane-bound organelles. | | Cytoskeleton | A network of proteins that is constantly changing to meet the needs of a cell. | | Nucleus | The storehouse for most of the genetic information‚ or DNA‚ in your cells. | | Endoplasmic Reticulum | (Or the ER) is an interconnected network of thin folded membranes. | | Ribosomes | Are tiny organelles that link
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that both are covered by a cell membrane and contain RNA as well as require energy 3. Which type of microscopy provides a 3d view of the surface of an object? Scanning electron microscope 4. Would you find proteins inside cells or cells inside proteins? (Choose one answer.) Protein inside cells 5. Which type of molecule travels through an aquaporin? Small‚ lipid-soluble molecules 6. Explain the basic organization (main components) of a plasma membrane. Include at least 4 distinct parts
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Dissolution[edit] In the most common situation‚ a tablet is ingested and passes through the esophagus to the stomach. The rate of dissolution is a key target for controlling the duration of a drug’s effect‚ and as such‚ several dosage forms that contain the same active ingredient may be available‚ differing only in the rate of dissolution. If a drug is supplied in a form that is not readily dissolved‚ the drug may be released more gradually over time with a longer duration of action. Having a
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different reasons. We were given 3 different explanations to explain why the cells appear smaller after being exposed to sugar water. These include: That the sugar molecules are not able to enter the cell‚ but the sugar molecules push on the cell membrane making the cell appear smaller‚ That water molecules move out of the cell because the concentration of water inside the cell is greater than the outside‚ and Sugar molecules enter the cell and push out water molecules. The cells appear smaller
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the meaning behind the PHOSPHOLIPIDS’ chant? Phospholipids make up most of the cell membrane‚ in a phospholipid bilayer. Phospholipid molecules form two layers‚ with the hydrophilic (water loving) head facing the extracellular fluid and the cytosol (intracellular) fluid‚ and the hydrophobic (not water loving) tails facing one another. The cell membrane is constructed in such a way that it is semipermeable‚ and allows oxygen‚ CO2 and lipid soluble molecules through easily‚ while other molecules
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Review 1: The Chemistry and Molecules of Life Please note that this is a general outline of some of the topics we will have discussed and are detailed in chapters 2-5 of your textbook. While this gives you an idea of some of the terms/phrases you are responsible for‚ not all the material we covered is included. You are responsible for everything discussed in class‚ but NOT for material in the book that was not addressed in lecture. Please do NOT assume that if you know the concepts/answers to the
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the main component of the cell membrane? – phospholipids Which of the following is a characteristic of the cell membrane? – semipermeable Which of the following is not a major function of proteins in the cell membrane? - forming the entire glycocalyx What part of a cell membrane is usually in contact with the interstitial fluid? - phosphate heads of phospholipids What is the basic difference between simple diffusion and facilitated diffusion across a cell membrane? - In facilitated diffusion‚
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Human Cell‚ protein production‚ cell organelles and the cell membrane. Structure and cell transport. The cell is the basic structural and functional unit of all known living organisms (See figure 1). It is the smallest unit of life that is classified as a living thing (except virus‚ which consists only from DNA/RNA covered by protein and lipids)‚ and is often called the building block of life. Organisms can be classified as unicellular (consisting of a single cell; including most bacteria) or
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cytoplasm surrounded by a plasma membrane. b) Unicellular Organism: An organism that consists of only one cell‚ unlike a multicellular organism that consists of multiple cells. c) No single cell is multicellular; however‚ it has been noted that a cell can evolve and become multicellular. 2. a) What is a difference between prokaryotic and eukaryotic cells? b) What is one significant similarity? d) Prokaryotic cells are a type of cell that lacks a membrane-bounded nucleus and organelles
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