12/28/25, 2:55 PM APHY 101 Ivy Tech Exam 2 Midterm Questions and Answers –
APHY 101 Ivy Tech Exam 2 Midterm Questions and
Answers LATEST VERSION 2026-2027
Cytology is the study of cells
Eukaryotic cells Microscopic composite cell thats differentiated
cell structures plasma membrane, cytoplasm, nucleus
cell membrane Primary structure of a cell membrane is a double layer
of phospholipid molecules
cell membrane components phospholipids, proteins, carbohydrates and cholesterol
HIV docks at and binds to the CD4 receptor
Passive Transport (Diffusion) A process that requires no energy to move molecules
down their concentration gradient(from high to low
concentration)
Osmosis Diffusion of water through a selectively permeable
membrane
Tonicity the ability of a surrounding solution to cause a cell to
gain or lose water
Osmolarity total concentration of all solute particles in a solution
Isotonic Describes a solution whose solute concentration is
equal to the solute concentration inside a cell. (Stays
the same)
facilitated diffusion process of diffusion in which molecules pass across the
membrane through cell membrane channels
Hypertonic Having a higher concentration of solute than another
solution (fluids leave and cells shrink)
Hypotonic Having a lower concentration of solute than another
solution (fluid rushes in and cells expand)
active transport Energy-requiring process that moves material across a
cell membrane against a concentration difference
Endocytosis process by which a cell takes material into the cell by
infolding of the cell membrane
APHY 101 Ivy Tech Exam 2 Midterm Questions and
Answers LATEST VERSION 2026-2027
Cytology is the study of cells
Eukaryotic cells Microscopic composite cell thats differentiated
cell structures plasma membrane, cytoplasm, nucleus
cell membrane Primary structure of a cell membrane is a double layer
of phospholipid molecules
cell membrane components phospholipids, proteins, carbohydrates and cholesterol
HIV docks at and binds to the CD4 receptor
Passive Transport (Diffusion) A process that requires no energy to move molecules
down their concentration gradient(from high to low
concentration)
Osmosis Diffusion of water through a selectively permeable
membrane
Tonicity the ability of a surrounding solution to cause a cell to
gain or lose water
Osmolarity total concentration of all solute particles in a solution
Isotonic Describes a solution whose solute concentration is
equal to the solute concentration inside a cell. (Stays
the same)
facilitated diffusion process of diffusion in which molecules pass across the
membrane through cell membrane channels
Hypertonic Having a higher concentration of solute than another
solution (fluids leave and cells shrink)
Hypotonic Having a lower concentration of solute than another
solution (fluid rushes in and cells expand)
active transport Energy-requiring process that moves material across a
cell membrane against a concentration difference
Endocytosis process by which a cell takes material into the cell by
infolding of the cell membrane
