Biology 11 Test – Cell Theory, Cell Structures and Cellular Transport
Total points: 50
1. Describe the functions of the following cellular organelles: Golgi apparatus, ribosomes, nucleus,
mitochondria, chloroplasts
(10 points)
2. Discuss one experiment that helped to disprove the theory of abiogenesis.
(4 points)
3. What are the three main statements of cell theory?
(6 points)
4. How do prokaryotic cells differ from eukaryotic cells?
(4 points)
5. Cell membranes are selectively permeable. What does this mean?
(4 points)
6. Match the definition on the left with the term on the right.
a._____ release of wastes or cell products from inside to outside a cell
b._____ diffusion of water molecules through a selectively permeable
membrane
c._____ continuous movement of particles but no overall change in
concentration
d._____ movement of particles from an area of higher concentration to one
of lower concentration
(1 point each)
a.
b.
c.
d.
diffusion
dynamic equilibrium
exocytosis
osmosis
7. In the space at the left, write true if the statement is true. If the statement is false, change the
italicized term to make the statement true. Write this answer in the blank provided. (1 pt ea.)
_____In passive transport, the movement of particles across a membrane requires energy.
_____Endocytosis is a process by which a cell membrane surrounds and takes in material from
the environment.
____ A membrane that allows only some materials to pass through shows selective
permeability.
Circle the word or phrase that best completes the statement or answers the question. (1 point each)
8. The structure most responsible for maintaining cell homeostasis is the
cytoplasm
cell wall
mitochondria
cell membrane
9. A cell membrane is made up of a(n)
cholesterol layer
enzyme layer
protein layer
lipid bilayer
10. Which of the following is not a form of passive transport?
diffusion
endocytosis
osmosis
11. Diffusion continues until
equilibrium is reached
turgor pressure is reached
12. If a cell is placed in salt water, water leaves the cell by
osmosis
diffusion
active transport
one side has more
phagocytosis
13. A cell moves particles from a region of lesser concentration to a region of higher concentration by
diffusion
osmosis
passive transport
active transport
14. Easter egg coloring:
(3 points)
A blue food coloring tablet is placed in a cup of vinegar and water. The blue tablet will
dissolve and spread evenly throughout the liquid.
beaker
Water and
vinegar
a. Is this diffusion or osmosis? __________________
b. Does this require energy? _____________________
c. Is the blue dye going from a lower to a higher concenor from a higher to a lower concentration? ________
blue food colouring
15. Plant cell after being over-watered.
(1 point)
a. Water rushes into the plant cell’s vacuole. Is this diffusion or
osmosis? _____________________
16. Plant cell after not being watered lately, so it has begun to wilt:
(2 points)
a. Which way will the water go? Into the vacuole, or out of the
vacuole? ______________________
b. By what process will the water move?
____________________________
17. An amoeba engulfs a particle of food.
(3 points)
a. Does this require
energy?_______________________
b. Is this active or passive transport?
_________________
c. Is this endocytosis or exocytosis? ________________