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38 Cards in this Set

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