Bio 253- Chapter 3 Cells UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Cytology - CORRECT ANSWER - study of cells
plasma membrane - CORRECT ANSWER - A selectively-permeable phospholipid bilayer
forming the boundary of the cells
selectively permeable - CORRECT ANSWER - a property of cell membranes that allows
some substances to pass through, while others cannot
electrochemical gradient - CORRECT ANSWER - The combination of forces that acts on
membrane potential.
ion channels - CORRECT ANSWER - channel proteins that transport ions
Diffusion - CORRECT ANSWER - Movement of molecules from an area of higher
concentration to an area of lower concentration.
Diffusion - CORRECT ANSWER - Movement of molecules from an area of higher
concentration to an area of lower concentration.
passive transport - CORRECT ANSWER - the movement of substances across a cell
membrane without the use of energy by the cell
facilitated diffusion - CORRECT ANSWER - Movement of specific molecules across cell
membranes through protein channels
ACTUAL Exam Questions and CORRECT
Answers
Cytology - CORRECT ANSWER - study of cells
plasma membrane - CORRECT ANSWER - A selectively-permeable phospholipid bilayer
forming the boundary of the cells
selectively permeable - CORRECT ANSWER - a property of cell membranes that allows
some substances to pass through, while others cannot
electrochemical gradient - CORRECT ANSWER - The combination of forces that acts on
membrane potential.
ion channels - CORRECT ANSWER - channel proteins that transport ions
Diffusion - CORRECT ANSWER - Movement of molecules from an area of higher
concentration to an area of lower concentration.
Diffusion - CORRECT ANSWER - Movement of molecules from an area of higher
concentration to an area of lower concentration.
passive transport - CORRECT ANSWER - the movement of substances across a cell
membrane without the use of energy by the cell
facilitated diffusion - CORRECT ANSWER - Movement of specific molecules across cell
membranes through protein channels
