1.
movement across the plasma membrane without the input
of energy by the cell,
A
vesicular transport
B
active transport
C
passive transport
2.
movement across the plasma membrane that requires the cell
to use energy (ATP)
A
passive transport
B
active transport
C
3.
movement from a higher concentration to a lower concentration (down a concentration gradient)
A
passive transport
B
active transport
C
4.
movement from a lower concentration to a higher concentration (up a
concentration gradient)
A
passive transport
B
active transport
C
5.
molecules move from an area of higher concentration to an area of
lower concentration to reach a state of equilibrium
A
Osmosis
B
filtration
C
diffusion
6.
equilibrium
A
process does not require the input of ATP by the cell (no energy required)
B
when molecules evenly distribute to form a uniform concentration, the solution has reached
C
hydrophobic center of the plasma membrane is the physical barrier of the plasma membrane
7.
JUST READ:
- hydrophobic center of the plasma membrane is the physical barrier of the plasma membrane
- for molecules to diffuse through the hydrophobic center
A
1. molecules must be small enough to pass through the membrane’s pores (right answer)
B
C
8.
unassisted movement of lipid soluble solutes through the
plasma membrane
A
osmosis
B
simple diffusion
C
facilitated diffusion
9.
movement of water through the plasma membrane by passing
through aquaporins (special pores) down its concentration gradient
A
simple diffusion
B
facilitated diffusion
C
osmosis
10.
tendency of a solution to pull water into it
A
tonicity
B
osmotic pressure
C
hydrostatic pressure
11.
based on its osmotic pressure, a solution has the ability to change the
size and shape of a cell
A
hydrostatic pressure
B
tonicity
C
blood pressure
12.
solutions that have the same solute and water
concentrations as the cell
A
hypotonic tonicity
B
hypertonic tonicity
C
isotonic tonicity
13.
solutions that contain less solutes in solutions than
are found inside the cell
A
hypotonic tonicity
B
hypertonic tonicity
C
isotonic tonicity
14.
solutions that contain more solutes in solutions than are found inside the cell
A
hypertonic tonicity
B
hypotonic tonicity
C
isotonic tonicity
15.
in this tonicity cell shape and size stays the same
A
hypertonic tonicity
B
hypotonic tonicity
C
isotonic tonicity
16.
solutions that contain more solutes in solutions than are found inside the cell
A
isotonic tonicity
B
hypotonic tonicity
C
hypertonic tonicity
17.
solutions that contain less solutes in solutions than are found inside the cell
A
hypotonic tonicity
B
isotonic tonicity
C
isotonic tonicity
18.
in this tonicity example: 5% glucose solution or 0.9% saline solution
A
hypertonic tonicity
B
isotonic tonicity
C
hypotonic tonicity
19.
in this tonicity example: ocean water at about 3% saline
A
hypotonic tonicity
B
hypertonic tonicity
C
isotonic tonicity
20.
in this tonicity example: distilled water
A
isotonic tonicity
B
hypertonic tonicity
C
hypotonic tonicity
21.
movement of a substance down its concentration gradient through the plasma membrane with the aid of protein channels or carrier proteins
A
simple diffusion
B
filtration
C
facilitated diffusion
22.
water and solutes are forced through plasma membrane pores by fluid or hydrostatic pressure according to the size of particles, process does not require the input of ATP by the cell (no energy required)
-follows a pressure gradient
A
filtration
B
facilitated diffusion
C
simple diffusion
23.
hydrostatic pressure in the body is called _____.
A
blood pressure
B
tonicity
C
aquaporins
24.
what process is the example :
-most filtration occurs in capillaries to filter nutrients to cells
-filtration also occurs in capillaries in kidneys to filter blood
vesicular transport, exocytosis, endocytosis, active transport
C
27.
movement of substances up a concentration gradient; ATP input is required by the cell
A
B
passive transport
C
active transport
28.
protein structure in the cell membrane called a carrier
-uses energy from ATP to move ions across cell membranes from a lower ion concentration to a higher ion concentration
A
solute pump
B
pinocytosis
C
tonicity
29.
- for substances that cannot move across a plasma membrane by
passive or active processes
- movement of substances into or out of a cell without the
substances going through the plasma membrane
-ATP is required
A
vesicular transport
B
exocytosis
C
endocytosis
30.
- export of substances from the cell
- a secretory vesicle filled with the substance within the cell fuses with
the
- plasma membrane and the substances in the vesicle are released to
the outside of the cell
A
exocytosis
B
vesicular transport
C
endocytosis
31.
-ATP provides energy for the fusion of the membranes
-involves a docking process for the fusion of the membranes to occur
-example: the release of neurotransmitters from nerve cells
A
vesicular transport
B
exocytosis
C
endocytosis
32.
- movement of large particles by a vesicle into the cell
- membrane surrounds the large particle or substance, encloses it, then
the membrane vesicle detaches and brings it into the cell
A
vesicular transport
B
exocytosis
C
endocytosis
33.
-once in the cell, the vesicle can (1) attach to a lysosome and digest the
contents or (2) move across the cell and release the contents of the vesicle
out of the cell by exocytosis
35.
- movement of solid particles into the cell
- called “cell eating
A
phagocytosis
B
pinocytosis
C
receptor-mediated endocytosis
36.
is a protective mechanism used by macrophages to destroy pathogens
A
receptor-mediated endocytosis
B
pinocytosis
C
phagocytosis
37.
- movement of drops of liquid into the cell
- called “cell drinking”
A
phagocytosis
B
pinocytosis
C
receptor-mediated endocytosis
38.
- involves the cell membrane forming a vesicle around the extracellular
fluid
- routine activity of most cells
A
phagocytosis
B
pinocytosis
C
receptor-mediated endocytosis
39.
example: absorptive function of cells in the small intestines
A
phagocytosis
B
pinocytosis
C
receptor-mediated endocytosis
40.
mechanism for intake of specific target molecules in which receptor proteins on the plasm membrane bind with the specific target molecules and both are moved into the cell by vesicle formation
A
phagocytosis
B
pinocytosis
C
receptor-mediated endocytosis
41.
examples of specific target molecules = hormones, enzymes,
cholesterol, or iron
