AP BIOLOGY UNIT 1 ACTUAL QUESTIONS AND
CORRECT ANSWERS ALREADY GRADED A+ LATEST
UPDATES GUARANTEED SUCCESS
Starch
A storage polysaccharide in plants consisting entirely of glucose; alpha,1-4
glycosidic linkage (covalent)
Cellulose
polysaccharide that makes up the cell walls in plants; beta,1-4 glycosidic linkage
(covalent)
Lipid Examples
fatty acids, fats, saturated fats, unsaturated fats, steroids, phospholipids,
cholesterol, triglycerides
Unsaturated Fat
A lipid made from fatty acids that have at least one double bond between carbon
atoms, making them liquid at room temperatures
Saturated Fat
A lipid made from fatty acids that have no double bonds between carbon atoms,
making them solid at room temperature (fatty acid chains are fully hydrogenated)
Steroid
, molecule with four fused carbon rings that behaves like a a lipid (can cross the
lipid bilayer of the cell membrane
Phospholipid
a lipid that contains phosphorus and that is a structural component in cell
membranes; has a hydrophilic polar "head" and 2 hydrophobic "tails" (fatty acid
chains)
Tertiary Structure of a Protein
protein structure is formed when the twists and folds of the secondary structure
fold again to from a larger 3D structure
Quaternary Structure of a Protein
protein structure is a protein consisting of more than one folded amino acid chain
Disulfide Bridge
The covalent bond between two sulfur atoms (-S—S-) linking two molecules or
remote parts of the same molecule.
Hydrogen Bonds
Very weak bonds; occurs when a hydrogen atom in one molecule is attracted to the
electrostatic atom in another molecule
nucleic acid
kind of macromolecule that stores, transfers, and expresses genetic information
Carbon, Hydrogen, Oxygen, Phosphorus, Nitrogen (CHOPN)
elements that make up a nucleic acid
nucleotide
monomer of nucleic acids made up of a 5-carbon sugar, a phosphate group, and a
nitrogenous base
double helix
term used to describe the arrangement of a DNA strand
RNA
ribonucleic acid; a polymer of nucleotides that transfers genetic information
CORRECT ANSWERS ALREADY GRADED A+ LATEST
UPDATES GUARANTEED SUCCESS
Starch
A storage polysaccharide in plants consisting entirely of glucose; alpha,1-4
glycosidic linkage (covalent)
Cellulose
polysaccharide that makes up the cell walls in plants; beta,1-4 glycosidic linkage
(covalent)
Lipid Examples
fatty acids, fats, saturated fats, unsaturated fats, steroids, phospholipids,
cholesterol, triglycerides
Unsaturated Fat
A lipid made from fatty acids that have at least one double bond between carbon
atoms, making them liquid at room temperatures
Saturated Fat
A lipid made from fatty acids that have no double bonds between carbon atoms,
making them solid at room temperature (fatty acid chains are fully hydrogenated)
Steroid
, molecule with four fused carbon rings that behaves like a a lipid (can cross the
lipid bilayer of the cell membrane
Phospholipid
a lipid that contains phosphorus and that is a structural component in cell
membranes; has a hydrophilic polar "head" and 2 hydrophobic "tails" (fatty acid
chains)
Tertiary Structure of a Protein
protein structure is formed when the twists and folds of the secondary structure
fold again to from a larger 3D structure
Quaternary Structure of a Protein
protein structure is a protein consisting of more than one folded amino acid chain
Disulfide Bridge
The covalent bond between two sulfur atoms (-S—S-) linking two molecules or
remote parts of the same molecule.
Hydrogen Bonds
Very weak bonds; occurs when a hydrogen atom in one molecule is attracted to the
electrostatic atom in another molecule
nucleic acid
kind of macromolecule that stores, transfers, and expresses genetic information
Carbon, Hydrogen, Oxygen, Phosphorus, Nitrogen (CHOPN)
elements that make up a nucleic acid
nucleotide
monomer of nucleic acids made up of a 5-carbon sugar, a phosphate group, and a
nitrogenous base
double helix
term used to describe the arrangement of a DNA strand
RNA
ribonucleic acid; a polymer of nucleotides that transfers genetic information
