Transcript Cell Organelles and Functions

1. Nucleolus
A.
B.
Make Ribosomes (workers in factory)
Some cells have more than one
nucleolus
2. The Nucleus
A.
B.
C.
Controls the cell’s activity
It determines how and when proteins
will be made.
Nucleus contains the DNA, which is
packaged as chromosomes that will
pass traits to offspring
3. Chromosomes Are Found
In the Nucleus.
4. Nuclear Envelope
A.
B.
Surrounds the nucleus and separates
it from the rest of the cell
Nuclear Pores - are openings that
allow certain materials to move into
and out of the nucleus.
Ribosomes are dots on the rough E.R.
6. Ribosomes
A.
B.
Where proteins are assembled
Ribosomes can be found free floating
in the cytoplasm.
Ribosomes free float in cytoplasm too.
Rough Endoplasmic
Reticulum
A.
B.
Rough because it is dotted with
ribosomes
Directs materials from the nucleus to
the ribosomes to make proteins
7. Smooth Endoplasmic
Reticulum
A.
B.
Canals that help move materials
around inside the cell. Make lipids
Does not contain ribosomes
8. Cytoplasm
A.
B.
C.
Cytosol -Clear, jelly-like material
between the cell membrane and the
nucleus.
Most of the chemical reactions of a
cell take place in the cytoplasm
Support other structures in the cell
9. Golgi Apparatus
A.
B.
Packages and stores chemicals in
vesicles to be released from the cell.
Large amounts of Golgi Apparatus are
found in cells that produce saliva.
10. Mitochondria
A.
B.
C.
D.
Bean shaped or rod shaped structures
Produce energy from food that has
been digested
Powerhouse of the cell
Cellular Respiration occurs in the
mitochondria
11. Lysosomes
A.
B.
C.
D.
Fill vesicles, which are small sacks, with
chemicals
Chemicals break down large molecules
Get rid of disease-causing bacteria that
enter the cell
Destroy worn-out cell parts and form
parts that can be used again
12. Centrioles
A.
B.
Involved in reproduction
They exist in pairs in the cell
13. Cytoskeleton –
A.
B.
C.
Molecular skeleton that supports the
structure of the cell.
Microfilaments – Smallest strands that
make up the cytoskeleton
Microtubules – Largest strands of the
cytoskeleton
14. Cell membrane
A.
B.
C.
D.
All cells are surrounded by a cell
membrane.
Gives the cell shape and holds the
cytoplasm
It also helps control what moves into and
out of the cell. (active and passive
transport)
More like a fluid than a solid (fluid mosaic)
15. Chloroplasts
A.
B.
C.
Chloroplasts contain chlorophyll.
Chlorophyll traps energy from the sun.
Photosynthesis takes place in the
chloroplasts in plant cells
16. Cell Wall
A.
B.
C.
Plant cells, fungi cells, some protist,
and bacteria cells have cell walls
Thick outer wall covering
Just out side the cell membrane
17. Vacuoles
A.
B.
C.
D.
Store enzymes and metabolic wastes.
Very large – Some occupy 90% of cell
Store food or aid in protection
Gives support to the plant cell
19. Flagella
19. Flagella
A
long, lash-like appendage serving as
an organ of locomotion (movement) in
protozoa.
20. Cilia
20. Cilia
 Minute
hair-like organelles, identical in
structure to flagella, that line the
surfaces of certain cells and beat in
rhythmic waves, providing locomotion to
ciliate protozoans and moving liquids
along internal epithelial tissue in
humans and animals.