Cell Organelles & Functions

Cell Organelles

Organelle= “little organ”

Found only inside eukaryotic cells

All the stuff in between the organelles is cytoplasm

Eukaryotic Cell Organelles and Function

1. Nucleus Function: contains DNA Parts:

1. Nucleolus: dark spot in the middle of the nucleus that helps make ribosomes

Eukaryotic Cell Organelles and Function

2. Ribosomes Function: makes proteins Found in all cells, prokaryotic and

eukaryotic

Eukaryotic Cell Organelles and Function

3. Endoplasmic Reticulum (ER) Function: The internal delivery

system of the cell

Endoplasmic Reticulum 2 Types:

1. Rough ER: helps make proteins (has ribosomes)

1. Rough appearance because it has ribosomes covering it

2. Smooth ER:makes fats (lipids)1. NO ribosomes

Eukaryotic Cell Organelles and Function

4. Golgi Complex Function: packages, modifies, and

transports materials to different locations inside/outside of the cell

Aka: golgi body or golgi apparatus Appearance: stack of pancakes

Eukaryotic Cell Organelles and Function

5. Lysosomes: (circular, but bigger than ribosomes)

Function: full of enzymes (see notes 1-2) to break down food and destroy old structures

Eukaryotic Cell Organelles and Function

6. Mitochondria Function: Energy formation

Converts food into ATP (the major fuel for all cell activities that require energy)

Now let’s talk about structures only found in PLANT Cells!!

Eukaryotic Cell Organelles and Function

9. Cell Wall Function: provides support and

protection to the cell membrane Found outside the cell membrane in

plant cells

Eukaryotic Cell Organelles and Function

7. Vacuoles Function: stores water and other

nutrients, gives cells their shape This is what makes lettuce crisp

When there is no water, the plant wilts

Eukaryotic Cell Organelles and Function

8. Chloroplasts Function: traps energy from the sun

to produce food Green in color because of

chlorophyll (chemical that absorbs light), which is a green pigment

Chloroplasts

Comparing Plant and Animal CellsPlant Animal