AP Bio: Unit 1 Flashcards
Covalent bond
Bond where electrons are SHARED inside a MOLECULE
Ionic bond
Bond where electrons are OPPOSITELY CHARGED inside a MOLECULE. “Opposites attract”
Peptide bond
Bond inside a PROTEIN of 2 AMINO ACIDS
Hydrogen bond
Bond where other atoms are covalently bonded. Between MOLECULES.
Polypeptide bond
MANY amino acids linked together
Null hypothesis
A hypothesis that says there is NO effect on what’s being tested
Polar attracts…
Polar. LIKE ATTRACTS LIKE
Macromolecules
COMPLEX molecules: proteins, nucleic acids, carbohydrates, lipids
The structure of a molecule…
DETERMINES how it FUNCTIONS
Monomer
A simple MOLECULE that can build up
Polymer
A single VERY LARGE MOLECULE
Carbohydrates
Made of monosaccharides
Nucleic Acids
Nucleotides
Proteins
Amino Acids
Lipids
Glycerol and Fatty Acids
Dehydration Synthesis
Process to create a POLYMER that produces WATER as well
Hydrolysis
Process to break a POLYMER that removes WATER as well
Adenine goes with…
Thymine
Guanine goes with…
Cytosine
Primary structure
SEQUENCE: The SEQUENCE of AMINO ACIDS. The ORDER determines the FUNCTION of the protein.
Secondary structure
PATTERN: Folding of the protein chain into ALPHA HELICES or BETA PLEATED shapes. STABILIZE PROTEIN and SHAPE it into more complex forms.
Tertiary structure
SHAPE: The OVERALL 3D SHAPE. Determined by interactions of the side chains.
Quaternary structure
CREATING: The ARRANGEMENT of protein subunits into a LARGER complex.
Amino acids are categorized by…
The NATURE of their SIDE CHAINS.
R Group
The FILL IN THE BLANK GROUP attached to the molecule that DETERMINES its FUNCTIONS.
AA Property Categorizations
Nonpolar, polar, positively charged, negatively charged
Nonpolar
EVEN sharing of electrons. “No Poles/Pulls” - no distinct charge. HYDROPHOBLIC
Polar
UNEQUAL sharing of electrons. “Poles/Pulls” - neg/pos charge. HYDROPHILLIC
More hydrogen bonds…
More STABLE. Makes substance STRONGER with them.
CARB: func & makeup
Energy. CHO
PRO: func & makeup
Building block. CHON
NA: func & makeup
DNA/RNA. CHONP
LIPID: func & makeup
Fats/store energy. CHO/NP (sometimes)
Cohesion
Caused by hydrogen bonding to be attracted to each other
Adhesion
Can stick to other things
High Specific Heat Capacity
Hydrogen molecules add strength to the substance they are IN. # of energy to change states.
Ice
POLARITY, LATTICE structure.
Universal Solvent
POLARITY. can break down both regions thru just water molecule
How to tell unsaturated
Double bond