What Am I?

What Am I?
I am a type of
mixture; I am formed
when one substance,
such as water, dissolves
other substances.
► Solution
I am a the type of molecule
that stores genetic information
in living things
► Nucleic acid
I am an attraction between a
slightly positive hydrogen atom
and a slightly negative atom,
such as oxygen or nitrogen
► Hydrogen bond
Chemical bonds hold me
together; I always contain
atoms of more than one
► Compound
I am a carbon chain found in
many lipids; I can be either
saturated or unsaturated
► Fatty acid
I have a positive charge if I
lose an electron; I have a
negative charge if I gain an
► Ion
I am made of amino acids;
there are many different types
of me with many different
functions in living things.
► Protein
I am a type of bond that
involves sharing of an electron
pair; I hold together a water
► Covalent bond
I am an attraction between
different types of molecules; I
am the reason why water clings
to glass.
► Adhesion
I contain carbon, hydrogen,
and oxygen; Sometimes I am
found in the cell walls of plants
► Carbohydrate (or
polysaccharide, or cellulose)
I am the amount of
energy that is needed for
a chemical reaction to
start; after I am added,
the reaction can take
place on its own
► Activation energy
I am always found in
organic molecules.
► Carbon
My formula is C6H12O6; I
have an isomer named
► Glucose
Situational Vocabulary: Which
choice most closely relates to the
vocabulary word?
► Amino Acid: (a) lemon juice in iced tea (b) one
of many beads on a string
► (b)
► Atom: (a) unicellular organism (b) multicellular
► Ionic bond: (a) linking hands in a human chain
(b) passing a basketball
Lipid: (a) a car’s headlights (b)
a car’s gas tank
► (b)
► Solute: (a) getting lost in a crowd
(b) answering a math problem
► (a)
► Water molecule: (a) a ring (b)
head and ears of a cartoon mouse
► (b)
► pH scale: (a) letters of the alphabet (b)
► (b)
► Starch: (a) savings account in a bank (b)
loose change in your pocket
► (a)
► Amino acids: (a) letters of the alphabet
(b) magnets
► (a)
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