UMKC BIO 108 EXAM 1 QUESTIONS WITH CORRECT ANSWERS LASTEST UPDATE 2026
what pair of atoms will form polar covalent bonds? - Answers Oxygen, Hydrogen, nitrogen
what is the pH of a solution with a hydroxide ion concentration of 10^-12 M? - Answers pH2
the amount of heat that must be absorbed or lost for 1 g of a substance to change its temperature by
1 degree C - Answers Specific Heat
a phosphorus atom bonded to four oxygen atoms is a - Answers phosphate group
a carbon double- bonded to an oxygen atom, present in aldehydes and ketones are - Answers
carbonyl
macromolecules can be described the following properties
-They are predominantly hydrophobic or amphiphilic compounds.
-They often form vesicles or membranes when in aqueous solutions. - Answers Lipids
condensation/dehydration reaction - Answers reaction that creates monomers; 2 molecules are
covalently bonded through the loss of a water molecule
Substrate - Answers reactant of an enzyme-catalyzed reaction
Not all proteins have ____________ structure, those that do have a specific association of more than
one polypeptide chain. - Answers quaternary structure
The primary structure of a protein is determined by the _________ of amino acids in the protein -
Answers sequence
the function of the rough er is - Answers synthesis of secreted and membrane proteins
Cells containing membrane-enclosed organelles are _______________. - Answers eukaryotic
The membranous sacs of the chloroplast are referred to as __________. - Answers thylakoid
Where would you find a nucleoid? - Answers In a prokaryotic cell.
The movement of a substance across a biological membrane against its concentration gradient with
the help of energy input is _________. - Answers active transport
The arrangement of lipid bilayers and other components in a membrane is the basis for the currently
widely accepted description which is called the ___. - Answers fluid mosaic model
Crossing a membrane by simple diffusion can be distinguished from facilitated diffusion because: -
Answers facilitated diffusion requires transport proteins while diffusion does not.
If two solutions have different solute concentrations, the solution with greater solute concentration is
______________ to the other solution. - Answers hypertonic
what pair of atoms will form polar covalent bonds? - Answers Oxygen, Hydrogen, nitrogen
what is the pH of a solution with a hydroxide ion concentration of 10^-12 M? - Answers pH2
the amount of heat that must be absorbed or lost for 1 g of a substance to change its temperature by
1 degree C - Answers Specific Heat
a phosphorus atom bonded to four oxygen atoms is a - Answers phosphate group
a carbon double- bonded to an oxygen atom, present in aldehydes and ketones are - Answers
carbonyl
macromolecules can be described the following properties
-They are predominantly hydrophobic or amphiphilic compounds.
-They often form vesicles or membranes when in aqueous solutions. - Answers Lipids
condensation/dehydration reaction - Answers reaction that creates monomers; 2 molecules are
covalently bonded through the loss of a water molecule
Substrate - Answers reactant of an enzyme-catalyzed reaction
Not all proteins have ____________ structure, those that do have a specific association of more than
one polypeptide chain. - Answers quaternary structure
The primary structure of a protein is determined by the _________ of amino acids in the protein -
Answers sequence
the function of the rough er is - Answers synthesis of secreted and membrane proteins
Cells containing membrane-enclosed organelles are _______________. - Answers eukaryotic
The membranous sacs of the chloroplast are referred to as __________. - Answers thylakoid
Where would you find a nucleoid? - Answers In a prokaryotic cell.
The movement of a substance across a biological membrane against its concentration gradient with
the help of energy input is _________. - Answers active transport
The arrangement of lipid bilayers and other components in a membrane is the basis for the currently
widely accepted description which is called the ___. - Answers fluid mosaic model
Crossing a membrane by simple diffusion can be distinguished from facilitated diffusion because: -
Answers facilitated diffusion requires transport proteins while diffusion does not.
If two solutions have different solute concentrations, the solution with greater solute concentration is
______________ to the other solution. - Answers hypertonic
