1. Cell Structure
Unit 3 – Lesson 3

2. Cell Structure
All parts of the cell are made out of four basic components.
Proteins
Lipids
Carbs
DNA

3. Looks like mini-organs!
Cell Structure
Each cell has a job to do. It needs structures in order to function.
Cells rely on structures called ORGANELLES.
Looks like mini-organs!

4. Cell Structure Organelles aide the cell with: Shape and Movement
Manufacturing Molecules
Processing Energy
Processing, Transporting and Storing Molecules

5. Cell Shape and Movement
Shape is given to the cell by:
Cell Membrane
Cell Wall
Cytoplasm and Cytoskeleton

6. Cell Membrane Protective layer around all cells.
It allows food and oxygen into the cell and waste products out of the cell.
The pink structure indicates a protein in the cell membrane – proteins allow material in and out of the cell
Animal Cell
Plant Cell

8. Why Do Plant Cells Have Cell Walls?
Tough rigid outer coverings that protects the cell and give it shape.
Found in plants, algae, fungi, and some bacteria.
Why Do Plant Cells Have Cell Walls?
Animal Cell
Plant Cell

9. Cytoplasm
The “soup” in which all other organelles reside. A gelatin like mixture.
Animal Cell
Plant Cell

10. Cell Shape and Movement
Movement is given to the cell by:
Cilia
Flagella
Animal Cell
Plant Cell

11. Manufacturing Molecules
The cell constantly needs to make molecules for growth and repair.
Organelles that manufacture molecules.
Nucleus
Ribosomes
Endoplasmic Reticulum

12. The Nucleus The largest organelle inside eukaryotes
Directs all cellular activities and CONTAINS DNA.
DNA carries the recipe for making proteins, lipids, and carbs (the basic components of all life)
Animal Cell
Plant Cell

13. Amino acids coming together to make PROTEINS
Ribosomes
Structures that make proteins.
Amino acids coming together to make PROTEINS

14. Endoplasmic Reticulum
Allows for production and transport of cellular materials.
Can be smooth or rough
Rough ER has ribosomes!

15. through PHOTOSYNTEHSIS makes energy from sugar
Processing Energy
All organisms need energy. Organelles that help in energy processing are:
Chloroplasts (plants only)
Mitochondria
CHLOROPLAST
makes sugar
through PHOTOSYNTEHSIS
MITOCHONDRIA
makes energy from sugar
through RESPIRATION

16. Processing, Transporting, and Storing Molecules
When the cells makes materials for growth and repair, the materials need to be shipped, stored, or processed. Think of UPS.
Golgi Body – like UPS
Vesicles - transport
Vacuoles – storage
Lysosome - digestion
PLANT CELLS HAVE BIG VACUOLES!

17. endoplasmic reticulum nucleus protein on its way! DNA
TO:
RNA
vesicle
TO:
TO:
vesicle
ribosomes
TO:
protein
finished protein
Golgi apparatus
Making Proteins