Atoms
What are the 3 subatomic particles of an atom?
protons, neutrons, and electrons
H2O
All organic compounds contain what element?
Carbon
All matter is composed of what?
Atoms
Is water polar or nonpolar?
Polar
What is found in the nucleus of an atom?
protons and neutrons
What is adhesion?
Water to another substance (2 different)
Carbohydrate
What is cohesion?
Water to water (same)
Chitin
A substance formed by a combination of two or more elements in definite proportions
compound
What type of bond holds 3 water molecules together?
Hydrogen
Lipid
What are the two shapes of the level 2 of protein structure?
helix and pleated sheet
Isotopes have the same number of what ?
protons and electrons
What are the 6 most common elements in organisms?
SPONCH
What property prevents fluctuations in temperature?
High specific heat
It will not dissolve in water
Isotopes of an atom have a different number of what?
neutrons
Surface tension
How many valence electrons does carbon have and where are they located
4, outer energy level
H=+
O=-
Monomer of ______________ is an amino acid
Protein
What was the first genetic material to be appear on Earth?
What is the difference between a saturated an unsaturated lipid?
Saturated has all single bonds
Unsaturated has at lease one double bond