BMS 300 Exam 1 UPDATED Exam
Questions and CORRECT Answers
How do water molecules interact with one another? - CORRECT ANSWER - hydrogen
bonds
What happens to hydrogen bonds in ice? - CORRECT ANSWER - they lengthen
Surface tension - CORRECT ANSWER -
What happens when you add detergent to water? - CORRECT ANSWER - it lengthens the
hydrogen bonds and reduces surface tension
solubility of charged ions in water - CORRECT ANSWER - -easily interact with the
dipole moment of water
-ions will go into solution
-hydrophilic
shell of hydration - CORRECT ANSWER - water atoms surrounding a charged ion
-negatively charged oxygens are attracted to positively charged ion
hydrophilic - CORRECT ANSWER - water loving
hydrophobic - CORRECT ANSWER - water fearing
amphipathic - CORRECT ANSWER - both hydrophilic and hydrophobic
example of a amphipathic molecule - CORRECT ANSWER - phospholipid
, examples of charged ions that dissolve well in water - CORRECT ANSWER - Na+, K+,
Ca 2+, H+, Cl-
What is the boundary between inside and outside the cell? - CORRECT ANSWER - cell
membrane
what is the basis of diffusion? - CORRECT ANSWER - free, random movement of ions in
solution
equilibrium - CORRECT ANSWER - where the ions are equally distributed
osmosis - CORRECT ANSWER - water diffusion
aquaporins - CORRECT ANSWER - water selective channels
how does water move is osmosis - CORRECT ANSWER - from higher to lower
concentrations of water
triglycerides - CORRECT ANSWER - animal fats and vegetable oils
what do all amino acids contain? - CORRECT ANSWER - a carboxyl group and an amnio
group linked by a carbon (R group)
How do peptide bonds form? - CORRECT ANSWER - when the carbon on the carboxyl
group forms a covalent bond with the nitrogen in the amine group in the adjacent amino acid
Where are phospholipid constructed from? - CORRECT ANSWER - from glycerol
Questions and CORRECT Answers
How do water molecules interact with one another? - CORRECT ANSWER - hydrogen
bonds
What happens to hydrogen bonds in ice? - CORRECT ANSWER - they lengthen
Surface tension - CORRECT ANSWER -
What happens when you add detergent to water? - CORRECT ANSWER - it lengthens the
hydrogen bonds and reduces surface tension
solubility of charged ions in water - CORRECT ANSWER - -easily interact with the
dipole moment of water
-ions will go into solution
-hydrophilic
shell of hydration - CORRECT ANSWER - water atoms surrounding a charged ion
-negatively charged oxygens are attracted to positively charged ion
hydrophilic - CORRECT ANSWER - water loving
hydrophobic - CORRECT ANSWER - water fearing
amphipathic - CORRECT ANSWER - both hydrophilic and hydrophobic
example of a amphipathic molecule - CORRECT ANSWER - phospholipid
, examples of charged ions that dissolve well in water - CORRECT ANSWER - Na+, K+,
Ca 2+, H+, Cl-
What is the boundary between inside and outside the cell? - CORRECT ANSWER - cell
membrane
what is the basis of diffusion? - CORRECT ANSWER - free, random movement of ions in
solution
equilibrium - CORRECT ANSWER - where the ions are equally distributed
osmosis - CORRECT ANSWER - water diffusion
aquaporins - CORRECT ANSWER - water selective channels
how does water move is osmosis - CORRECT ANSWER - from higher to lower
concentrations of water
triglycerides - CORRECT ANSWER - animal fats and vegetable oils
what do all amino acids contain? - CORRECT ANSWER - a carboxyl group and an amnio
group linked by a carbon (R group)
How do peptide bonds form? - CORRECT ANSWER - when the carbon on the carboxyl
group forms a covalent bond with the nitrogen in the amine group in the adjacent amino acid
Where are phospholipid constructed from? - CORRECT ANSWER - from glycerol
