Biol 186 UVIC Midterm 1 Exam -Questions with Correct Answers/ 100%
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Covalent Bond - ✔✔Shared pair of electrons between two atoms.
Ionic Bond - ✔✔Electrostatic attraction between full positive and negative charges on ions.
Van der Waals Interactions - ✔✔Interactions between partial positive and partial negative regions of
different molecules.
Chemical Reactions - ✔✔Breaking of some bonds between atoms and the formation of others.
The formation of new bonds releases...? - ✔✔Energy
Water molecules are (cohesive/adhesive) due to their __________ bonds. - ✔✔Cohesive, hydrogen
bonds.
Water has a (low/high) heat capacity due to its __________ bonds. - ✔✔High, hydrogen bonds.
Chirality - ✔✔Mirror image
An organic molecule is chiral if it has at least one carbon atom bonded to _________ different
groups. - ✔✔Four
Isomers - ✔✔Two different molecules that have the same chemical formula.
Monosaccharides - ✔✔Simple sugars, often raw materials used to build other molecules.
Dissacharides - ✔✔A sugar containing two monosaccharides attached by glycosidic linkage.
Glycosidic linkage is often formed through this type of reaction... - ✔✔Dehydration
, Polysaccharides - ✔✔Carbohydrates that are made up of more than two monosaccharides.
Glycogen - ✔✔The main storage polysaccharide of animals. Main storage form of glucose in the
body.
Cellulose - ✔✔A structural polysaccharide of plant cell walls.
What are the four functions of carbohydrates? - ✔✔Energy transport, energy generation, building
material, and activities at cell surface.
Fatty acids have two parts which are...? - ✔✔A hydrophilic carboxyl group, and a hydrophobic
hydrocarbon chain.
Structural variation in fatty acids - ✔✔Length of carbon chain, saturated/unsaturated, location of
double bonds, cis or trans configuration and double bonds.
Triglycerides - ✔✔Fatty acid esters of glycerol. E.g. animal fats, vegetable oil...
Phospholipids are... - ✔✔Amphipathic
Steroids - ✔✔Fused hydrocarbon rings
Functions of lipids - ✔✔Membrane structure, energy storage, energy generation, thermal insulation,
signaling, buoyancy.
Functions of proteins - ✔✔Catalysis of biochemical reactions by enzymes, cytoskeleton and motility
structure proteins, signaling molecules, storage, transport...
What are the 2 types of nucleic acids? - ✔✔DNA and RNA.
What makes up the structure of nucleic acids? - ✔✔Base (A, G, C, T or U), sugar (ribose or
deoxyribose), phosphate group, nucleoside, and nucleotide.
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Covalent Bond - ✔✔Shared pair of electrons between two atoms.
Ionic Bond - ✔✔Electrostatic attraction between full positive and negative charges on ions.
Van der Waals Interactions - ✔✔Interactions between partial positive and partial negative regions of
different molecules.
Chemical Reactions - ✔✔Breaking of some bonds between atoms and the formation of others.
The formation of new bonds releases...? - ✔✔Energy
Water molecules are (cohesive/adhesive) due to their __________ bonds. - ✔✔Cohesive, hydrogen
bonds.
Water has a (low/high) heat capacity due to its __________ bonds. - ✔✔High, hydrogen bonds.
Chirality - ✔✔Mirror image
An organic molecule is chiral if it has at least one carbon atom bonded to _________ different
groups. - ✔✔Four
Isomers - ✔✔Two different molecules that have the same chemical formula.
Monosaccharides - ✔✔Simple sugars, often raw materials used to build other molecules.
Dissacharides - ✔✔A sugar containing two monosaccharides attached by glycosidic linkage.
Glycosidic linkage is often formed through this type of reaction... - ✔✔Dehydration
, Polysaccharides - ✔✔Carbohydrates that are made up of more than two monosaccharides.
Glycogen - ✔✔The main storage polysaccharide of animals. Main storage form of glucose in the
body.
Cellulose - ✔✔A structural polysaccharide of plant cell walls.
What are the four functions of carbohydrates? - ✔✔Energy transport, energy generation, building
material, and activities at cell surface.
Fatty acids have two parts which are...? - ✔✔A hydrophilic carboxyl group, and a hydrophobic
hydrocarbon chain.
Structural variation in fatty acids - ✔✔Length of carbon chain, saturated/unsaturated, location of
double bonds, cis or trans configuration and double bonds.
Triglycerides - ✔✔Fatty acid esters of glycerol. E.g. animal fats, vegetable oil...
Phospholipids are... - ✔✔Amphipathic
Steroids - ✔✔Fused hydrocarbon rings
Functions of lipids - ✔✔Membrane structure, energy storage, energy generation, thermal insulation,
signaling, buoyancy.
Functions of proteins - ✔✔Catalysis of biochemical reactions by enzymes, cytoskeleton and motility
structure proteins, signaling molecules, storage, transport...
What are the 2 types of nucleic acids? - ✔✔DNA and RNA.
What makes up the structure of nucleic acids? - ✔✔Base (A, G, C, T or U), sugar (ribose or
deoxyribose), phosphate group, nucleoside, and nucleotide.
