atoms
water
properties
properties
pH
macro
molecules
molecules
macro
molecules
molecules
100
What is the charge of the following subatomic particles
electron
proton
neutron
-
+
0
100
describe cohesion
attraction between molecules of the same substance
100
What pH range should something acidic be in?
0-6
100
example of lipids
wax, oils, fats, honey
100
enzymes are what type of macromolecule?
protein
200
what is an isotope?
same element but different # of neutrons
200
what is adhesion
attraction between molecules of different substances
200
What pH range should something that is basic be in?
8-14
200
What are the 4 types of macromolecules
carbohydrate, lipid, nucleic acid, protein
200
1. What is the monomer of nucleic acids
2. examples of nucleic acids
1. Nucleotide
2. DNA, RNA
300
what are examples of radioactive isotopes?
detect cancer
kill bacteria that spoil food
determine ages of rocks
300
What is the property of water that is happening in the tube called?
meniscus
300
What would you call a solution with more H+ ions than OH- ions.
acidic
300
monomer of proteins
amino acids
300
what is the function of lipids?
store energy for long term use
waterproofs membranes and body coverings
400
What is a chemical compound? give examples
substance formed by 2 or more elements
NaCl
H2O
400
describe what heat capacity is
the amount of energy needed to raise a substances temperature by making its molecules move faster
400
Label the parts of this equation
Water H2O
H+ Hydrogen
OH- Hydroxide
400
explain polymerization
process where monomers (smaller units) come together to form polymers (bigger units)
400
define the following words in terms of sugar
1. Monosaccharide
2. Disaccharide
3. polysaccharide
1. 1 simple singular sugar (glucose)
2. 2 simple single sugar join together (glucose + fructose)
3. multiple simple sugars joined together
500
explain differences between covalent and ionic bonds
covalent formed what electrons are SHARED between 2 or more atoms
ionic formed when one or more electrons are TRANSFERRED from one atom to another
500
What is polarity? Why is water considered to be polar?
polarity- uneven partial positive/ negative charges
the oxygen on a water molecule has a partial negative charge, while the 2 hydrogens have a partial positive charge, allowing for more attraction to other polar molecules
500
What is a buffer and what role does it play in our lives?
weak acids/ bases that help to combat other strong acids/bases, maintain homeostasis
500
explain what enzymes do
speed up chemical reactions
500
what type of bonds link amino acids together to form a polypeptide
covalent bonds