Transcript Levels of Cellular Organization

LEVELS OF CELLULAR
ORGANIZATION
Thursday, March 25th
THURSDAY, MARCH 25TH
AIM:
What are the different
levels of cellular organization?
 Do
Now
 What does multicellular mean?
Many Cells
 What do you think is more complicated?
Cells or Organs? Why? (2 sentences)
Organs are more complicated than
cells. An organ has many cells
working together in order for it to
work.
LEVELS OF CELLULAR
ORGANIZATION
Work
together to sort
the cards at your table
from smallest to
biggest (2 minutes)
LEVELS OF CELLULAR
ORGANIZATION
BIG
ORGAN SYSTEM: Two or more
tissues working together to perform a
specific function/job for the organism
ORGANS: Tissues work together to
perform a specific activity
TISSUES: Similar cells
working together to do the
same functions/jobs.
SMALL
CELLS
BODY WORK
TOGETHER TO
CIRCULATE
BLOOD?
The HEART
(Organ)
HEART
TISSUES
HEART
CELLS
Organelles
CIRCULATORY
SYSTEM
CHALLENGE QUESTION
Why
isn’t there cellular
organization in unicellular
organisms?
GROUP CHALLENGE GAME!
 Who
remembers the rules?
 RULES:

Work as a team to answer the questions
Keep your answers secret until time is called
No talking while your answers are raised
No cheering or booing
Team with the most points wins!

ARE YOU READY?




QUESTION 1
1. Which of the following
is a unicellular
organism?
a. human c. bacteria
b. lion d. tree
QUESTION 2
2. The structure that regulates
what enters and leaves the
cell is called
a. the nucleus.
b. the nuclear membrane.
c. the cell wall.
d. the cell membrane.
QUESTION 3
3. Only eukaryotic cells have
a. DNA.
c. ribosomes.
b. membrane-bound
organelles.
d. cytoplasm.
QUESTION 4
4. A structure within a cell
that performs a specific
function is called a(n)
a.organelle.
b.tissue.
c. organ tissue.
d.biocenter.
QUESTION 5
5. Which cell structure controls
most cell activities?
a. cytoplasm c. cell membrane
b. nucleus
d. chloroplast
QUESTION 6
6. Organisms composed of
more than one cell are called
____________.
a. unicellular c. multicellular
b. virus
d. tissue
QUESTION 7
7. Which of these is a unicellular organism?
A
C
B
D
QUESTION 8
8. Multicellular organisms are made up of
more than one kind of cell because:
a. unicellular organisms can’t move so don’t
need lots of cells.
b. multicellular organisms are more complex
than unicellular organisms and need
different cells for different functions.
c. unicellular organisms don’t do all the
seven things living things do.
d. multicellular organisms don’t get energy.
QUESTION 9
9. Which of the following is the correct
order of organization of structures in
living things, from simplest to most
complex?
a. organ systems, organs, tissues, cells
b. tissues, cells, organs, organ systems
c. cells, tissues, organ systems, organs
d. cells, tissues, organs, organ systems
QUESTION 10
10. Which of the following lists an
organism’s levels of cellular
organization in order from
SMALLEST to LARGEST?
a. tissues, cells, organ systems, organs
b. cells, organs, tissues, organ systems
c. tissues, cells, organs, organ system
d. cells, tissues, organs, organ systems
QUESTION 11
11. What is the name for a
group of cells that work
together to perform a certain
task in an organism?
a. tissue
c. species
b. organ
d. genius
ORGAN SYSTEM
TISSUE
CELL
ORGAN
12. FILL IN THE LINE WITH THE
APPROPRIATE LABEL FROM ABOVE!
Blood cell: _____________________
Circulatory System: ________________
Brain tissue: _________________________
Heart: _______________________________