Hi fuck you

3. “cell” is!
 The Cell - basic unit of structure &
function in the organism; most cell
are vary small and invisible without
using a microscope.

4. Cell Theory
1. Every living organism is composed of
cells.
2. Every cell in an organism produced by
anther cell.

5. Cell Structure

6. Cell Membrane
Structure:
•Surround the parts of
cell together.
Function (job):
•Controls the movement
of material into and out
of cell.

7. Cytoplasm
Structure:
•Substance between the
cell membrane and the
nucleus.(Everything within the
cell membrane which is not the
nucleus is known as the
cytoplasm).
•Makes up most of the
mass of many cell.
Function (job):
•Different cell material
are produced by
cytoplasm.

8. Cytoplasm
Cytosol is the jelly-like
mixture in which the
other organelles are
suspended, so
cytosol + organelles =
cytoplasm.

9. Nucleus
Structure:
•Usually round/oval
•Near center
The nucleus separated
from the cytoplasm by a
thin membrane is called
nuclear membrane.

10. Nucleus
Function (job):
•Controls cell activities

11. Mitochondria
Structure:
•Rod shaped

12. Mitochondria
Function (job):
•Release energy & it is
called (Power house of cell)

13. Ribosomes
Structure:
•Tiny particle, so small,
they can see only with
an electron microscope.

14. Ribosomes
Function (job):
•Site of Protein
synthesis because it
consisting of RNA and
protein.

15. Endoplasmic Reticulum
Structure:
•Like tubes
•Smooth ER - no
ribosomes attached
•Rough ER - ribosomes
are attached

16. Endoplasmic Reticulum
Function (job):
•Transports materials
“intracellular

17. Golgi Bodies
Structure:
•Series of flattened
sacs

18. Golgi Bodies
Function (job):
•Processes, packages and
secretes material
•Materials that are
transported by the ER
usually stop first at the
Golgi bodies where they are
stored or altered before
moving to other parts of the
cell

19. Lysosomes
Structure:
•Round organelles
surrounded by a
membrane.
Function (job):
•Contains powerful
digestive enzymes

20. Vacuoles
Structure:
•Fluid-filled sacs that
float in the cytoplasm

21. Vacuoles
Function (job):
•Stores water and food
materials
•Stores waste and helps
the cell get rid of
waste

22. •Cell types:
•Prokaryotic cell - very simple; no
membrane-bound structures
(ex: bacteria)
•Eukaryotic cell - more advanced; has
membrane-bound structures
(ex: animal cells, plant cells)

23. Organization of Living
Things
Five main levels of organization
1. Cell
2. Tissue
3. Organ
4. Organ System
5. Organism

24. Tissue
• Example: Muscle
• Tissues are made of specialized
cells.

25. Organ
• Examples: Heart, Lung, Brain
• Found in both plants and animals.
• Composed of tissue that is
organized into groups that work
together to perform special
functions.

26. Organ System
• Example: Circulatory System
• A group of organs that work
together.

27. 10 Organ Systems in complex
organisms
(humans, dogs, birds, etc.)
1. Circulatory
2.Digestive
3.Nervous
4.Respiratory
5.Skin
6.Skeletal
7.Muscular
8.Reproductive
9.Excretory
10.Endocrine

28. ORGANISMS
• Different organ systems work
together to keep the organism
alive.

29. QUESTION:
• Classify the following as a tissue, organ, or
organ system.
a. Brain, spinal cord, and nerves
b. Heart
c. Group of muscle cells

30. QUESTION:
• Can a single-celled organism
contain tissue? Explain.

31. QUESTION:
• Give one example of each:
a. Cell c. Tissue
b. Organ d. Organism