BIOL 1P91 EXAM QUESTIONS AND
ANSWERS. VERIFIED 2025/2026.
Peptide - ANS Short chain of amino acids linked by peptide bonds
Protein - ANS A polypeptide that has folded into a three dimensional shape required for most
proteins to be functionsl
Levels of protein structure - ANS primary structure, secondary structure, tertiary structure,
quaternary structure
teritiary structure - ANS the 3-D shape of a single polypeptide; the final structure of a
functional protein
functional groups - ANS A specific configuration of atoms commonly attached to the carbon
skeletons of organic molecules and involved in chemical reactions.
amino acids - ANS building blocks of proteins
Polysacharides are - ANS polymers of monosaccharides
monosacharides are - ANS sugars, soluble in water such as glucose and fructose
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, hydrolysis reaction - ANS A chemical reaction that breaks apart a larger molecule by adding a
molecule of water
organic compounds - ANS compounds that contain carbon and hydrogen
Buffers - ANS substances that minimize changes in pH
ph - ANS hydrogen ion concentration
Surface tension (of water) - ANS the intermolecular hydrogen bonds between molecules of
water at the surface. high in water
hydrophobic interactions - ANS Interactions between hydrophobic molecules grouping
together to avoid water
specific heat - ANS The amount of energy required to raise the temperature of 1 gram of a
substance by 1 degree celcius. high in water
aqueous solution - ANS water forms surface coat around ions, called a hydration shell,
promoting their seperation in solution
Hydrogen bonds are - ANS bonds between a hydrogen (bound to an electronegative atom)
interacting with an electronegative atom from another molecule.
van der Waals forces - ANS a slight attraction that develops between the oppositely charged
regions of nearby molecules
cellular respiration - ANS Process that releases energy by breaking down glucose and other
food molecules in the presence of oxygen
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
ANSWERS. VERIFIED 2025/2026.
Peptide - ANS Short chain of amino acids linked by peptide bonds
Protein - ANS A polypeptide that has folded into a three dimensional shape required for most
proteins to be functionsl
Levels of protein structure - ANS primary structure, secondary structure, tertiary structure,
quaternary structure
teritiary structure - ANS the 3-D shape of a single polypeptide; the final structure of a
functional protein
functional groups - ANS A specific configuration of atoms commonly attached to the carbon
skeletons of organic molecules and involved in chemical reactions.
amino acids - ANS building blocks of proteins
Polysacharides are - ANS polymers of monosaccharides
monosacharides are - ANS sugars, soluble in water such as glucose and fructose
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, hydrolysis reaction - ANS A chemical reaction that breaks apart a larger molecule by adding a
molecule of water
organic compounds - ANS compounds that contain carbon and hydrogen
Buffers - ANS substances that minimize changes in pH
ph - ANS hydrogen ion concentration
Surface tension (of water) - ANS the intermolecular hydrogen bonds between molecules of
water at the surface. high in water
hydrophobic interactions - ANS Interactions between hydrophobic molecules grouping
together to avoid water
specific heat - ANS The amount of energy required to raise the temperature of 1 gram of a
substance by 1 degree celcius. high in water
aqueous solution - ANS water forms surface coat around ions, called a hydration shell,
promoting their seperation in solution
Hydrogen bonds are - ANS bonds between a hydrogen (bound to an electronegative atom)
interacting with an electronegative atom from another molecule.
van der Waals forces - ANS a slight attraction that develops between the oppositely charged
regions of nearby molecules
cellular respiration - ANS Process that releases energy by breaking down glucose and other
food molecules in the presence of oxygen
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
