BIL 150 FULL QUESTIONS AND CORRECT
ANSWERS PROFESSIONAL PREPARATION
MATERIAL
●● In a dehydration synthesis reaction, ... is always formed as a by-
product of the reaction.
Answer: water
●● Which is the terms for compounds that do not mix with water?
Answer: Hydrophobic
●● The components of nucleic acids are...
Answer: a nitrogenous base, a pentose sugar, and a phosphate
●● At a conference, the speaker's grand finale was sautéing mealworms
(insect larvae) in butter and serving them to the audience. They were
crunchy (like popcorn hulls) because their exoskeletons contain the
polysaccharide __________.
Answer: chitin
●● When comparing saturated and naturally occurring unsaturated fats,
the unsaturated fats have __________ and are __________ at room
temperature.
,Answer: cis double bonds; liquids
●● Nitrogenous bases are classified as either purines or pyrimidines.
Examples of purines are __________.
Answer: adenine and guanine
●● Sugars have a(n) __________ group that interacts with a _________
group that forms ring structures when the dry molecule is placed in
water.
Answer: carbonyl, hydroxyl
●● Sugars are molecules that have __________ C:H:O and are called
__________.
Answer: a 1:2:1 ratio of; carbohydrates
●● The peptide bond is __________.
Answer: a covalent bond joining amino acids together to form a
polypeptide
●● A shortage of phosphorus in the soil would make it especially
difficult for a plant to manufacture __________.
Answer: DNA
,●● Macromolecules, the molecules of life, include all of the following
except __________.
Answer: trace elements
●● The type of bond that forms to join monomers (such as sugars and
amino acids) into polymers (such as starch and proteins) is a(n)
__________ bond.
Answer: covalent
●● The secondary structure of a peptide backbone is stabilized by
__________ forming either a(n) __________ or a(n) __________.
Answer: hydrogen bonds; α helix; β pleated sheet
●● The tertiary structure of a protein includes all of the following
interactions except _________ bonds.
Answer: peptide
●● Generally, animals cannot digest (hydrolyze) the glycosidic linkages
between the glucose molecules in cellulose. How then do cows get
enough nutrients from eating grass?
Answer: Microorganisms in their digestive tracts hydrolyze the cellulose
to individual glucose units.
, ●● The subunits (monomers) in cellulose are linked together by
__________.
Answer: glycosidic linkages
●● The lipids that form the main structural component of cell
membranes are __________.
Answer: phospholipids
●● ... have a specific form that allows them to bind to foreign materials
in the body.
Answer: Antibodies
●● ... are proteins that act as biological catalysts.
Answer: enzymes
●● ... usually function as structural proteins.
Answer: fibrous proteins
●● ...bind signaling molecules such as endorphins that may change the
behavior of a cell.
Answer: receptor proteins
ANSWERS PROFESSIONAL PREPARATION
MATERIAL
●● In a dehydration synthesis reaction, ... is always formed as a by-
product of the reaction.
Answer: water
●● Which is the terms for compounds that do not mix with water?
Answer: Hydrophobic
●● The components of nucleic acids are...
Answer: a nitrogenous base, a pentose sugar, and a phosphate
●● At a conference, the speaker's grand finale was sautéing mealworms
(insect larvae) in butter and serving them to the audience. They were
crunchy (like popcorn hulls) because their exoskeletons contain the
polysaccharide __________.
Answer: chitin
●● When comparing saturated and naturally occurring unsaturated fats,
the unsaturated fats have __________ and are __________ at room
temperature.
,Answer: cis double bonds; liquids
●● Nitrogenous bases are classified as either purines or pyrimidines.
Examples of purines are __________.
Answer: adenine and guanine
●● Sugars have a(n) __________ group that interacts with a _________
group that forms ring structures when the dry molecule is placed in
water.
Answer: carbonyl, hydroxyl
●● Sugars are molecules that have __________ C:H:O and are called
__________.
Answer: a 1:2:1 ratio of; carbohydrates
●● The peptide bond is __________.
Answer: a covalent bond joining amino acids together to form a
polypeptide
●● A shortage of phosphorus in the soil would make it especially
difficult for a plant to manufacture __________.
Answer: DNA
,●● Macromolecules, the molecules of life, include all of the following
except __________.
Answer: trace elements
●● The type of bond that forms to join monomers (such as sugars and
amino acids) into polymers (such as starch and proteins) is a(n)
__________ bond.
Answer: covalent
●● The secondary structure of a peptide backbone is stabilized by
__________ forming either a(n) __________ or a(n) __________.
Answer: hydrogen bonds; α helix; β pleated sheet
●● The tertiary structure of a protein includes all of the following
interactions except _________ bonds.
Answer: peptide
●● Generally, animals cannot digest (hydrolyze) the glycosidic linkages
between the glucose molecules in cellulose. How then do cows get
enough nutrients from eating grass?
Answer: Microorganisms in their digestive tracts hydrolyze the cellulose
to individual glucose units.
, ●● The subunits (monomers) in cellulose are linked together by
__________.
Answer: glycosidic linkages
●● The lipids that form the main structural component of cell
membranes are __________.
Answer: phospholipids
●● ... have a specific form that allows them to bind to foreign materials
in the body.
Answer: Antibodies
●● ... are proteins that act as biological catalysts.
Answer: enzymes
●● ... usually function as structural proteins.
Answer: fibrous proteins
●● ...bind signaling molecules such as endorphins that may change the
behavior of a cell.
Answer: receptor proteins
