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38 Cards in this Set
- Front
- Back
elongated microvilli
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stereocilia
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list three functions of cellular connections
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intercellular communication
bind cells together form a permeability barrier |
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hemidesmosome
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junction that attaches epithelial cells to the basement membrane
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where are gap junctions important?
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cardiac and smooth muscle
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merocrine glands
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secrete without losing celluar material
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apocrine glands
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discharge fragments of cells in secretion
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holocrine glands
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entire cell is shed as secretion
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What are the seven major functions of connective tissue?
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enclosing and seperating
connecting tissues to one another support and movement storage cushioning and insulation transporting protecting |
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What is the function of mast cells?
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mast cells respond to injury such as trauma and infection
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What do macrophages do?
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phagocytize foriegn or injured cells
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What are the three types of connective tissue?
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hyaline, fibrocartilage, and elastic cartilage
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single covalent bond
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electron pair shared by two atoms
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double covalent bond
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two atoms sharing four electrons
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nonpolar covalent bond
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covalent bonds where electrons are shared equally
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polar covalent bond
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electrons shared unequally, resulting in polar molecule
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compound
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two or more different types of atoms chemically combined
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hydrogen bond
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positively charged hydrogen is attracted to negative ions such as oxyegen or nitrogen
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________ substances dissolve readily in water, while ______ substances do not.
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Polar, nonpolar
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How do substances dissolve in water?
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water molecules surround solute molecules; if positive and negative ends of H2O are attracted more to charged ends of other molecules than to each other, hydrogen bonds are broken
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substances that enter into a chemical reaction
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reactants
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substances that result from a chemical reaction
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products
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synthesis reaction where water is removed
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dehydration reaction
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chemical reaction that results from the exchange between sodium and chlorine
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oxidation- reduction reaction
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mixture
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combination of two or more substances physically blended but not chemically combined
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solution
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any liquid, solid or gas in which solutes are equally distributed
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suspension
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mixture that contains substances that seperate unless continually mixed
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colloid
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hetrogeneous, translucent mixture, such as milk
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an acidic solution has a _______ concentration of H+ ions
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greater
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a basic solution has a greater concentration of _______ ions
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hydroxide ions (HO-)
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compound consisting of a cation other than H+ and an anion other than HO-
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salt
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Carbohydrates are a compound of what molecules?
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carbon, hydrogen, and oxygen
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name three monosaccharides
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glucose, frutose, galatose
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two simple sugars bound by a dehydration reaction
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diasaccharide
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many monosaccharides that form a long chain
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polysaccharide
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most abundant organic compound
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cellulose
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95% of the fats in the human body
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triglycerides
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two triglycerides
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glycerol and fatty acids
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lipid derived from fatty acids; regulates hormones
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eicosanoids
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