Chapter 2 Flashcards
list the 7 functions of protein
- support
- movement
- Transport
- Buffering
- Metabolic regulation
- Coordination and control
- defenses
What is an ion?
Atom or molecule with an electric charge due to losing one or more electrons
ionic bond
one atom takes an electron from the other, and the electrical charges keep them together
catabolism
split a molecule into pieces
Anabolism
put two molecules together into a bigger molecule
Enzymes
are proteins in the body that speed up reactions without being used themselves
Acids
-rip electron of hydrogen atom
- are negatively charged
proton donors
- Low pH number
Bases
really want at proton
are positively charged
high pH number
pH scales
how much an acid or base wants a proton
salt
any substance that is ionically bonded that doesn’t include H+ or OH- as part of the bond
- water rips the bond apart and makes cation(+) and anion(-_
electrolyte
any substance that conducts an electrical current when dissolved in water
glucose is
the most important “fuel” of the body
monosaccharide
4 types of lipids
Fatty acid
Fats
Steroids
phospholipids
what are fats made of
up to 3 fatty acids hooked to a glycerol (three carbons)
uses of steroids
structural components of the cell membranes
part of the digestive secretions of bile
some are hormones
