Download UNICELLULAR MULTICELLULAR

DOK 2B Study Guide
Name________________________________________ Date_______________ Block________
1. What does that (multi-cellular) mean?
Made of many specialized cells that work together to demonstrate the 7
characteristics of life
2. Give three examples of multi-cellular organisms:
Polar bear, snow leopard, snow owl
3.
What does that (unicellular) mean?
Made of only one cell that demonstrates all 7 characteristics of living things
4. Give three examples of unicellular organisms:
Paramecium, amoeba, euglena
UNICELLULAR
MULTICELLULAR
EUGLENA
MADE OF CELL(S)
Ingest-surrounds and engulfs other
organisms and moves them into the REPRODUCE
vacuoles
Digest-enzymes move into the
GROW AND REPAIR
vacuole in order to break down
food into nutrients that can be used INGEST
by the cell
Reproduce-binary fission-divides
DIGEST
into two cells that are identical to
EXCRETE
the original cell
Excrete-waste from the vacuoles
SENSE AND RESPOND
are moved out of the cell through
the cell membrane
TO STIMULI
Cells-made of only one cell that is
not specialized
in order to maintain
Respond to stimuli-may be able to
sense light with an eye spot, can
HOMEOSTASIS
sense heat, objects that block its
path
Grow and repair-cells grow to
accommodate organelles that
double in number
POLAR BEAR
Ingest-eat salmon, breathe in
oxygen
Digest-digestive system breaks
down salmon into nutrients that can
be used by the body
Reproduce-give birth to offspring to
polar bear cub
Excrete-release waste from the
digestive system, sweat, tears,
exhaling carbon dioxide
Cells-multicellular (made of more
than one cell)
Respond to stimuli-sense that it is
mating season for salmon and
catch them as they swim upstream
Grow and repair-grow from a cub
to an adult bear; can repair
damage to cells by creating new
ones to replace them
5. Pick a unicellular organism ________________________ and a multicellular organism
______________________. Write a paragraph comparing and contrasting how
those organisms demonstrate (do) all the characteristics of a living thing.
Use the information from your VENN Diagram to write a paragraph!
6. List the three parts of the cell theory
a. The cell is the basic unit of structure and organization of living things.
b. All living things are made of cells.
c. All cells come from pre-existing cells
7. Draw a timeline about the scientists who came up with the cell theory. Explain
their contributions to the theory on your timeline!
8. Put the following words in order largest to smallest:
a. Organism, Cell, Organ, Tissue, Organ System
ORGANISM  ORGAN SYSTEM  ORGAN  TISSUE  CELL
9. Is this microscopic picture
from a plant or an animal?
PLANT CELLS
10. Why? (How do you know?) These cells are arranged in a repeating pattern with shapes that
have corners and are not randomly placed.