BMS 300 UNIT 1 EXAM QUESTIONS AND
ANSWERS
A bond in which electrons are shared between two atoms is a _____ bond. -
ANSWER Covalent
Water molecules are attracted to each other and form _____ bonds. - ANSWER
Hydrogen
Sodium (Na+) will be attracted to what portion of a molecule particle? -
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
In triglycerides, a fatty acid is joined to a glycerol by a ______ bond. -
ANSWER covalent
The part of the amino acid that distinguishes one amino acid from another is the
________. - ANSWER R-group
For a chain of amino acids to form, several amino acids are bonded together by
what types of bonds? - ANSWER Covalent and peptide bonds.
Triglycerides consist of what? - ANSWER 1 molecule of glycerol and 3 fatty
acid chains
, Which is the least stable forms of phospholipid structures? - ANSWER A
micelle
___________ interact with water to form the _______ structure of proteins. -
ANSWER R-groups, tertiary
R-groups can be ________, ______, or _______________. - ANSWER
Charged, uncharged, or polar
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. Beta pleated sheets form due to __________ bonding ________ adjacent
strands. - ANSWER hydrogen bonding, within, and hydrogen bonding,
between
What is a histone? - ANSWER A protein found in eukaryotic cell nuclei that
package and order the DNA into structural units called nucleosomes
Excluding mitosis/ meiosis, DNA never leave the nucleus true/false -
ANSWER True
Eukaryotic DNA is organized by - ANSWER winding around histones to
condense into chromosomes found in the nucleus
Synthesize proteins: - ANSWER ribosomes
ANSWERS
A bond in which electrons are shared between two atoms is a _____ bond. -
ANSWER Covalent
Water molecules are attracted to each other and form _____ bonds. - ANSWER
Hydrogen
Sodium (Na+) will be attracted to what portion of a molecule particle? -
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
In triglycerides, a fatty acid is joined to a glycerol by a ______ bond. -
ANSWER covalent
The part of the amino acid that distinguishes one amino acid from another is the
________. - ANSWER R-group
For a chain of amino acids to form, several amino acids are bonded together by
what types of bonds? - ANSWER Covalent and peptide bonds.
Triglycerides consist of what? - ANSWER 1 molecule of glycerol and 3 fatty
acid chains
, Which is the least stable forms of phospholipid structures? - ANSWER A
micelle
___________ interact with water to form the _______ structure of proteins. -
ANSWER R-groups, tertiary
R-groups can be ________, ______, or _______________. - ANSWER
Charged, uncharged, or polar
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. Beta pleated sheets form due to __________ bonding ________ adjacent
strands. - ANSWER hydrogen bonding, within, and hydrogen bonding,
between
What is a histone? - ANSWER A protein found in eukaryotic cell nuclei that
package and order the DNA into structural units called nucleosomes
Excluding mitosis/ meiosis, DNA never leave the nucleus true/false -
ANSWER True
Eukaryotic DNA is organized by - ANSWER winding around histones to
condense into chromosomes found in the nucleus
Synthesize proteins: - ANSWER ribosomes
