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| How many cells are in the body | 50-100 trillion cells
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| What are cells mainly composed of? | C, H, N, O
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| What are the three basic parts of of a cell | Cell membrane, cytoplasm, nucleus
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| Two kinds of endoplasmic reticulum | Rough and smooth
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| Why is rough endoplasmic reticulum rough? | Ribosomes
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| What do ribosomes do | Make proteins and sends the to the smooth er
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| What does the smooth endoplasmic reticulum do | Organizes proteins given by the rough er to send to Golgi apparatus
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| Exocytosis | Golgi releases protein to the outside of the body
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| Integral protiens | Firmly inserted into the membrane,
Transports protiens
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| Peripheral protiens | Loosely attached to integral proteins
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| What is the function of peripheral protiens | Enzymes, motor protiens, cell to cell links, cell recognition
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| Three types of membrane junctions | Tight junctions,
Desmosomes
Gap junctions
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| What is a tight junction | Prevents fluid and molecules from moving between cells
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| What is a desmosome | Rivet that holds cells together
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| What is a gap junction | A pore that allows small molecules to pass from cell to cell,
Spreads ions between cardiac or smooth muscle cells
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| What is tonicity | The ability of a solution to cause a cell to shrink or swell
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| When a cell shrinks in tonicity | Hypertonic
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| When a cell swells in tonicity | Hypotonic
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| What is osmosis | The balancing of solute and solvent
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| What kind of transport uses osmosis | Passive transport
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| The cell neither swells or shrinks | Isotonic
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| What is the fluid in between the nucleus and the membrane | Cytoplasm
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| Two types if organelles in cytoplasm | Membranous and nonmembranous
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| What is the head part of the phospholipid unit? | Polar and hydrophilic
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| What is the tail part of the phsopholipid unit | Nonpolar and hydrophobic
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| Function of membrane protiens | Regulation,
Moter proteins,
Enzymes,
Cell to cell links
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| How many different types of cells are there in the body | 200
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| Cells consists of what elements | C,H,O,N
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| 6 properties of water | Hydrolysis and dehydration reactions,
Major transport medium,
High heat vaporization,
High heat capacity,
Neutral pH
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| What part of a cell synthesizes lipids and detoxifies toxic chemicals | Smooth endoplasmic reticulum
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| Production of glycogen from glucose is what kind of reaction | Synthesis
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| Vessicles | Cavities
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| Does mitosis or meiosis occur in all cells in the body | Mitosis
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| Meiosis affects | Sex cells
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| How many cells does mitosis make? | 2
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| In meiosis I how many chromosomes are passed to the daughter cell | 23- half
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| In meiosis II how many chromosomes are passed to the second set of daughter cells? | 23
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| How many chromosomes are passed to the daughter cells in mitosis | 46
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| How many cells does meiosis make? | 4
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