BIO 110: CELL MEMBRANES EXAM
QUESTIONS AND ANSWERS
(GRADED A)
A protein that is associated with a membrane but does not protrude into the
hydrophobic interior of the membrane - Correct Answers -peripheral protein
Molecule that is a made up of both protein and carbohydrate parts - Correct Answers -
glycoprotein
The only type of macromolecule that does not form part of the membrane structure -
Correct Answers -nucleic acid
The molecules that form the hydrophobic core of a cell membrane - Correct Answers -
phospholipid
Temperature can affect how fluid, or loose, a membrane is (true or false) - Correct
Answers -true
The property of cell membranes that allows some but not all substances to cross the
membrane - Correct Answers -selective permeability
Any process whereby substances are moved across a membrane without the direct use
of energy by the cell - Correct Answers -diffusion
What is the term given to a situation where the amount of a dissolved solute is dissolved
on either side of a cell membrane? - Correct Answers -concentration gradient
Colder temperatures make membranes more solid (true or false) - Correct Answers -
true
Cells can not adjust the amount of phospholipids with saturated or unsaturated fatty
acids in a membrane (true or false) - Correct Answers -false
Phospholipids and proteins are anchored in pace in a membrane and cannot move
around (true or false) - Correct Answers -false
QUESTIONS AND ANSWERS
(GRADED A)
A protein that is associated with a membrane but does not protrude into the
hydrophobic interior of the membrane - Correct Answers -peripheral protein
Molecule that is a made up of both protein and carbohydrate parts - Correct Answers -
glycoprotein
The only type of macromolecule that does not form part of the membrane structure -
Correct Answers -nucleic acid
The molecules that form the hydrophobic core of a cell membrane - Correct Answers -
phospholipid
Temperature can affect how fluid, or loose, a membrane is (true or false) - Correct
Answers -true
The property of cell membranes that allows some but not all substances to cross the
membrane - Correct Answers -selective permeability
Any process whereby substances are moved across a membrane without the direct use
of energy by the cell - Correct Answers -diffusion
What is the term given to a situation where the amount of a dissolved solute is dissolved
on either side of a cell membrane? - Correct Answers -concentration gradient
Colder temperatures make membranes more solid (true or false) - Correct Answers -
true
Cells can not adjust the amount of phospholipids with saturated or unsaturated fatty
acids in a membrane (true or false) - Correct Answers -false
Phospholipids and proteins are anchored in pace in a membrane and cannot move
around (true or false) - Correct Answers -false
