BMS 300 EXAM 1 ALL QUESTIONS AND
VERIFIED ANSWERS
A bond in which electrons are shared betwen atoms is a _______________
bond. - ANSWER Covalent
Water molecules are attached to each other and form ________________
bonds. - ANSWER Hydrogen
True or False:
Hydrophilic molecules have equal sharing of electrons across all the atoms in
the molecule. - ANSWER False
True or False
Hydrophilic molecules diffuse easily in water. - ANSWER True
True or False
Hydrophilic molecules interact with the dipole moment in water -
ANSWER
True
Sodium (Na+) will be attracted to what portion of a water molecule. -
ANSWER
Oxygen
,__________________ is the diffusion of water molecules through a
semipermeable membrane from a place of higher water concentration to a place
of lower water concentration until the concentration on both sides is equal.
ANSWER
Osmosis
Triglycerides contain a fatty acid combined with glycerol via a(an)
_____________ bond. - ANSWER Covalent
True or False
Two solutions are seperated by a membrane that contains only channels
permeable to water aquaporins. The solution in the left-hand compartment
contains 30 millimolar NaCl, which dissociates completely and the right hand
compartment contains 60 millimolar urea which is a small, charged molecule
that does not dissociate. Water will not flow because osmotic forces are
balanced. - ANSWER True
The part of an amino acid that differs from one amino acid to another is the
______________. - ANSWER R-Group
To form a chain of amino acids, multiple amino acids are combined by what
kind of bond? - ANSWER Peptide bond
What type is a peptide bond? - ANSWER Covalent
What is aquaporin also known as? - ANSWER a water channel
, True or false
Triglycerides are composed of 1 long chain fatty acid and 3 glycerols. -
ANSWER False
What is the least stable form of a phospholipid structure? - ANSWER Micelle
__________________ interact with water to form the ______________
structure of proteins. - ANSWER R-Groups, tertiary
True or False
R-groups can be charged, uncharged, and/or polar - ANSWER True
The amino acids that can be found on the outside of a protein when placed in
water are? - ANSWER Hydrophilic
Alpha helices form due to ________________ bonding of amino acids
_______________ the strand. - ANSWER Hydrogen, within
Beta pleated sheets form due to ________________ bonding of amino acids
_______________ adjacent strands. - ANSWER Hydrogen, between
A protein found in the nuclei of eukaryotic cells that packs and organizes the
DNA into structural units called nucleosomes. - ANSWER Histone
True or False
VERIFIED ANSWERS
A bond in which electrons are shared betwen atoms is a _______________
bond. - ANSWER Covalent
Water molecules are attached to each other and form ________________
bonds. - ANSWER Hydrogen
True or False:
Hydrophilic molecules have equal sharing of electrons across all the atoms in
the molecule. - ANSWER False
True or False
Hydrophilic molecules diffuse easily in water. - ANSWER True
True or False
Hydrophilic molecules interact with the dipole moment in water -
ANSWER
True
Sodium (Na+) will be attracted to what portion of a water molecule. -
ANSWER
Oxygen
,__________________ is the diffusion of water molecules through a
semipermeable membrane from a place of higher water concentration to a place
of lower water concentration until the concentration on both sides is equal.
ANSWER
Osmosis
Triglycerides contain a fatty acid combined with glycerol via a(an)
_____________ bond. - ANSWER Covalent
True or False
Two solutions are seperated by a membrane that contains only channels
permeable to water aquaporins. The solution in the left-hand compartment
contains 30 millimolar NaCl, which dissociates completely and the right hand
compartment contains 60 millimolar urea which is a small, charged molecule
that does not dissociate. Water will not flow because osmotic forces are
balanced. - ANSWER True
The part of an amino acid that differs from one amino acid to another is the
______________. - ANSWER R-Group
To form a chain of amino acids, multiple amino acids are combined by what
kind of bond? - ANSWER Peptide bond
What type is a peptide bond? - ANSWER Covalent
What is aquaporin also known as? - ANSWER a water channel
, True or false
Triglycerides are composed of 1 long chain fatty acid and 3 glycerols. -
ANSWER False
What is the least stable form of a phospholipid structure? - ANSWER Micelle
__________________ interact with water to form the ______________
structure of proteins. - ANSWER R-Groups, tertiary
True or False
R-groups can be charged, uncharged, and/or polar - ANSWER True
The amino acids that can be found on the outside of a protein when placed in
water are? - ANSWER Hydrophilic
Alpha helices form due to ________________ bonding of amino acids
_______________ the strand. - ANSWER Hydrogen, within
Beta pleated sheets form due to ________________ bonding of amino acids
_______________ adjacent strands. - ANSWER Hydrogen, between
A protein found in the nuclei of eukaryotic cells that packs and organizes the
DNA into structural units called nucleosomes. - ANSWER Histone
True or False
