ERROR FREE ANSWERS.
Pinocytosis - ANSWER Cell drinking
Phagocytosis - ANSWER Cell eating
Exocytosis - ANSWER release of substances outside a cell by the fusion of a
vesicle with the membrane.
Endocytosis - ANSWER process by which a cell takes material into the cell by
infolding of the cell membrane
osmosis - ANSWER Low to High, Diffusion of water through a selectively
permeable membrane
Diffusion - ANSWER Movement of molecules from an area of higher concentration
to an area of lower concentration.
tonicity - ANSWER the ability of a surrounding solution to cause a cell to gain or
lose water
isotonic solution - ANSWER when the concentration of two solutions is the same
(moving in and out equally)
hypertonic solution - ANSWER A solution in which the concentration of solutes is
greater outside then inside the cell that resides in the solution
hypotonic solution - ANSWER Solute concentration is less than the inside the cell;
cell gains water
oncotic pressure - ANSWER pulls fluid into the capillaries and/or prevents fluid from
leaving.
hydrostatic pressure - ANSWER increases filtration by pushing fluid and solute
OUT of the capillaries
crenation - ANSWER This happens when a cell shrinks and shrivels; can result in
cell death if severe.
hemolysis - ANSWER destruction/split of red blood cells
active transport - ANSWER the movement of ions or molecules across a cell
membrane into a region of higher concentration, assisted by enzymes and requiring
energy.
passive(facilitated) transport - ANSWER the movement of substances across a cell
membrane without the use of energy by the cell
, BIO-201 GCU EXAM 1 WITH
ERROR FREE ANSWERS.
Co-transport - ANSWER TWO substances are transported together by one protein
no ATPase activity
Countertransport - ANSWER One substance is being transported into the cell
membrane and the other is getting transported in the opposite direction.
What are some factors that affect diffusion? - ANSWER • Temperature
• Solvent Density
• Distance traveled
Simple Diffusion - ANSWER high to low concentration easy to flow through cell
membrane; Oxygen is an example
Channel Mediated - ANSWER Only the right shape gets through example little kid
shape puzzles
List the three categories of transport across the cell membrane. - ANSWER • Active
transport
• Carrier Mediated
• Channel mediated
the structure of the mitochondrion - ANSWER outer membrane, inter membrane
space, inner membrane, cristae (folds in im), matrix
phosphorylation - ANSWER The metabolic process of introducing a phosphate
group into an organic molecule.
Hydrolysis - ANSWER how the body breaks the bonds between the last two
phosphates in ATP, which is what gives us energy
ATP synth(make)-ase (Enzyme) does what? - ANSWER Makes ATP
ATP-ase (Enzyme) - ANSWER break down of ATP
Metabolism - ANSWER "Work" the chemical processes that occur within a living
organism in order to maintain life.
Glucose - ANSWER "Bodies Gold" A simple sugar that is an important source of
energy.
ATP - ANSWER (adenosine triphosphate) main energy source that cells use for
most of their work
ADP - ANSWER (Adenosine Diphosphate) The compound that remains when a
phosphate group is removed from ATP, releasing energy