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AP BIOLOGY UNIT 1 EXAM QUESTIONS WITH
ANSWERS
structure of an amino acid:-correct-answer-a carboxyl group, an amino group, a
central Carbon, a Hydrogen, and an R-group
peptide bond:-correct-answer-covalent bond formed between amino acids
polypeptide chain:-correct-answer-a long line of amino acids bonded together by
peptide bonds
R-group:-correct-answer-stands for the rest of the compound, different for each
kind of amino acid, giving the amino acid its properties
properties the R-group may give the amino acid:-correct-answer-hydrophilic or
hydrophobic, polar or nonpolar, acidic or basic
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four levels of a proteins structure:-correct-answer-primary structure, secondary
structure, tertiary structure, quaternary structure
hydrophobic R-groups:-correct-answer-move together to the interior of a protein,
away from water
lipids:-correct-answer-macromolecule made of carbon, hydrogen and oxygen
(CHO) that is mostly nonpolar not soluble in water;
Carbon, Hydrogen, Oxygen (CHO):-correct-answer-elements that makeup both
Carbohydrates and Lipids
fatty acid:-correct-answer-building block of a lipid made of a hydrocarbon chain
and a carboxyl group
glycerol:-correct-answer-a carbon alcohol that is hydrophilic
functions of lipids:-correct-answer-long-term energy storage, insulation, part of
the cell membrane, chemical messenger, waterproofing
AP BIOLOGY UNIT 1 EXAM QUESTIONS WITH
ANSWERS
structure of an amino acid:-correct-answer-a carboxyl group, an amino group, a
central Carbon, a Hydrogen, and an R-group
peptide bond:-correct-answer-covalent bond formed between amino acids
polypeptide chain:-correct-answer-a long line of amino acids bonded together by
peptide bonds
R-group:-correct-answer-stands for the rest of the compound, different for each
kind of amino acid, giving the amino acid its properties
properties the R-group may give the amino acid:-correct-answer-hydrophilic or
hydrophobic, polar or nonpolar, acidic or basic
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four levels of a proteins structure:-correct-answer-primary structure, secondary
structure, tertiary structure, quaternary structure
hydrophobic R-groups:-correct-answer-move together to the interior of a protein,
away from water
lipids:-correct-answer-macromolecule made of carbon, hydrogen and oxygen
(CHO) that is mostly nonpolar not soluble in water;
Carbon, Hydrogen, Oxygen (CHO):-correct-answer-elements that makeup both
Carbohydrates and Lipids
fatty acid:-correct-answer-building block of a lipid made of a hydrocarbon chain
and a carboxyl group
glycerol:-correct-answer-a carbon alcohol that is hydrophilic
functions of lipids:-correct-answer-long-term energy storage, insulation, part of
the cell membrane, chemical messenger, waterproofing
