Biology 106 Exam 1 REVIEW QUESTION
AND VERIFIED CORRECT ANSWERS
GRADED A+ [LATEST UPDATE] 100%
GUARANTEED PASS
polar - CORRECT ANSWER-slightly changed yet neutral molecules, dissolve in H20
nonpolar - CORRECT ANSWER-electrically neutral, don't dissolve in H20
adhesion - CORRECT ANSWER-H20 to surface
cohesion - CORRECT ANSWER-H20 to H20
acid/base - CORRECT ANSWER-molecule that donates H+ in H20/OH+
pH scale - CORRECT ANSWER-measures amount of hydrogen ions. 7 is neutral, above 7 base,
below 7 acid. Pure water is neutral.
buffer - CORRECT ANSWER-substance that tend to resist changes in pH and help maintain
physiological pH. human blood is 7.4
macromolecule - CORRECT ANSWER-molecule that contains many subunits
synthesis - CORRECT ANSWER-production or macromolecule, dehydration reaction.
, catabolism - CORRECT ANSWER-breaking down, hydrolysis reaction add H20 which breaks
bonds.
metabolism - CORRECT ANSWER-all the chemical reactions that occur in cell. all biological must
follow the laws of chemistry and physics. Most reactions require energy in the form of ATP.
carbohydrates - CORRECT ANSWER-sugars, monomeric unit is monosaccharide.
(animals=glycogen, plants=starch). function is ENERGY
Lipids - CORRECT ANSWER-fats, monomeric unit is glycerol and fatty acids. function is long term
STORAGE, membrane structure. HYDROPHOBIC. fatty acids- saturated vs unsaturated, cis vs.
trans bond. Phospholipid. Cholesterol.
Phospholipid - CORRECT ANSWER-polar head, non polar tail, involved in membrane structure.
Proteins - CORRECT ANSWER-monomeric unit is amino acid (peptide, polypeptide, protein).
Functions- enzymes, antibodies, support, keratin, transport molecules, motion, hormones.
Peptide bond.
Peptide bond - CORRECT ANSWER-covalent bond that acts like a double bond and prevents
rotation.
4 Levels of protein structure - CORRECT ANSWER-primary= AA sequence, secondary= a helix or
sheet, tertiary= 3D shape, quarternary= two or more polypeptides.
denaturation - CORRECT ANSWER-irreversible change in shape of protein due to extreme heat
or pH.
AND VERIFIED CORRECT ANSWERS
GRADED A+ [LATEST UPDATE] 100%
GUARANTEED PASS
polar - CORRECT ANSWER-slightly changed yet neutral molecules, dissolve in H20
nonpolar - CORRECT ANSWER-electrically neutral, don't dissolve in H20
adhesion - CORRECT ANSWER-H20 to surface
cohesion - CORRECT ANSWER-H20 to H20
acid/base - CORRECT ANSWER-molecule that donates H+ in H20/OH+
pH scale - CORRECT ANSWER-measures amount of hydrogen ions. 7 is neutral, above 7 base,
below 7 acid. Pure water is neutral.
buffer - CORRECT ANSWER-substance that tend to resist changes in pH and help maintain
physiological pH. human blood is 7.4
macromolecule - CORRECT ANSWER-molecule that contains many subunits
synthesis - CORRECT ANSWER-production or macromolecule, dehydration reaction.
, catabolism - CORRECT ANSWER-breaking down, hydrolysis reaction add H20 which breaks
bonds.
metabolism - CORRECT ANSWER-all the chemical reactions that occur in cell. all biological must
follow the laws of chemistry and physics. Most reactions require energy in the form of ATP.
carbohydrates - CORRECT ANSWER-sugars, monomeric unit is monosaccharide.
(animals=glycogen, plants=starch). function is ENERGY
Lipids - CORRECT ANSWER-fats, monomeric unit is glycerol and fatty acids. function is long term
STORAGE, membrane structure. HYDROPHOBIC. fatty acids- saturated vs unsaturated, cis vs.
trans bond. Phospholipid. Cholesterol.
Phospholipid - CORRECT ANSWER-polar head, non polar tail, involved in membrane structure.
Proteins - CORRECT ANSWER-monomeric unit is amino acid (peptide, polypeptide, protein).
Functions- enzymes, antibodies, support, keratin, transport molecules, motion, hormones.
Peptide bond.
Peptide bond - CORRECT ANSWER-covalent bond that acts like a double bond and prevents
rotation.
4 Levels of protein structure - CORRECT ANSWER-primary= AA sequence, secondary= a helix or
sheet, tertiary= 3D shape, quarternary= two or more polypeptides.
denaturation - CORRECT ANSWER-irreversible change in shape of protein due to extreme heat
or pH.
