ACTIVE TRANSPORT PRACTICE Name: _____________________
1. What is active transport? ____________________________________________________
___________________________________________________________________________
___________________________________________________________________________
3. Draw arrows in the diagram to the right,
What are two ways in which a particle that
indicating the direction in which the particles is too large to fit though the cell membrane
can enter the cell (either active or passive)?
move across the membrane through active
transport.
4. _________________________________
5. _________________________________
What is happening in the following pictures? (active transport, endocytosis, exocytosis)
6.
7.
6.
__________________________
7. ___________________
8. ___________________
9. ___________________
9.
8.
Active Transport
Passive Transport
10._______ energy
Cell
Uses energy
11._____ to 12. _____
transport
13.______ to 14.______
15-22. Fill in the chart comparing and contrasting facilitated diffusion and active transport. Write either yes
or no to fill in the chart.
Facilitated
Diffusion
Active
Transport
Uses transport proteins?
Transports materials across the cell membrane?
Requires energy?
Able to move materials from an area with less of the material to
an area with more of the material?
Give the vocabulary term that matches the definition:
23.
Process by which vesicles release their contents outside the cell
24.
Energy requiring process in which transport proteins bind with
particles and move them through a cell membrane
25.
Process by which a cell takes in a substance by surrounding it
with the cell membrane.
26. Give one way in which facilitated diffusion and active transport are similar:
______________________________
27. Give one way in which facilitated diffusion and active transport are different:
__________________________________________________________________
What 2 cell structures are involved in exocytosis and endocytosis?
28. ________________________
29. ________________________________
30. Endo means _______________________ 31. Exo means ________________________
32. Cyto or Cyt means ________________
33.The cell membrane is made up of __________________________________
Label the diagrams with the correct term: diffusion, active transport, osmosis, equilibrium, facilitated diffusion
High
CO2
levels
25 C6H12O6
molecules
Low CO2
levels
8 H2O
molecules
2 H2O
molecules
5
High
C6H12O6
molecules
mineral
levels
Low
mineral
levels
10 H20
molecules
10 H20
molecules
34._____________35.____________36._____________37._____________38.____________
Active and Passive Transport
Word bank: use each word only once
Exocytosis
Equilibrium
Diffusion
Passive
Concentration gradient
Endocytosis
Active
Osmosis
Facilitated diffusion
Energy
proteins
39. Active transport can move substances against their ______________________________
40. Materials are released from a cell in a process called _____________________________
41. A type of passive transport which uses special proteins to aid the movement of materials
is called ____________________________________
42. The difference between active and passive transport is that active transport requires
__________________, while passive transport does not.
43. ____________________ is the movement of water to try to balance concentrations.
This is a type of (44.) _____________________ transport.
45. Materials are taken in a by a cell in a process called ________________________
46. _________________________ is the movement of particles from high to low concentrations until (47.)__________________ is achieved.
48.In _____________________ transport, molecules move from an area of low concentration to an area of high concentration.
49.Special ______________________ proteins are used to assist molecules over the cell
membrane.
PASSIVE TRANSPORT
ACTIVE TRANSPORT
Types
Types
1.
1.
2.
2.
3.
3.
Does not require ______________.
Requires ____________ in the form
of an ___________ molecule.
Moves materials _______ the
Moves materials _______ the
concentration gradient.
concentration gradient.
Across
2. description of cell membrane
6. molecules that are evenly balanced
8. energy molecule 9. does not require energy
10. assist large molecules
11. diffusion of water
Down
1. molecules move from many to _____
3. forms vesicle to bring into the cell
4. against the gradient, requires energy
5. acid holds cells coded information
6. vesicle's contents released outside the cell
7. cells structure that makes energy
PASSIVE TRANSPORT
ACTIVE TRANSPORT
Molecules move from __________
Molecules move from ______
concentration to ___________
concentration to _________
concentration.
concentration.
______________ is the diffusion of
water. Water is attempting to reach
___________.
__________________________ is
the movement of materials from an
area of high concentration to an area
of low concentration, striving to reach
__________________________.
_____________________
uses a
____________________ involves
bringing materials into the cell by
creating a vacuole from the cell
membrane.
______________________ involves
releasing materials out of the cell by a
vacuoles membrane fusing with the cell
membrane.
________________________ uses a
transport protein to move materials
transport protein to move materials
down the concentration gradient.
against the concentration gradient.