1. Plant Growth
AKA “Cells”

2. The Cell Membrane
The cell membrane or (plasma membrane) is a flexible boundary between the cell and its environment
It is the outermost structure making the outline of the cell

3. The Cell Membrane
The cell membrane allows certain things in, such as water and nutrients, and other things out
This ability of the cell membrane to allow certain things in or out is referred to as selective permeability

4. The Nuts and Bolts of a Cell
Cell Organelles
The Nuts and Bolts of a Cell

5. Centrioles
Nucleus
Endoplasmic
Reticulum
Cytoplasm
Cell Membrane
Lysosome
Golgi Apparatus
Mitochondria
Chromatin
Nucleolus
Nuclear Membrane
Ribosome
Vacuole

6. Cell Organelles
Like many organisms have organs within them that have specific functions, cells have organelles
Organelles are membrane-bound structures within a eukaryotic cell that have specific functions

7. The Cell Membrane
The cell membrane, or plasma membrane, is a selectively permeable layer on the outside of the cell, which contains all of the organelles within.

8. Cell Wall
A cell wall is a fairly rigid structure located outside the plasma membrane of plants, fungi, most bacteria, and some protists which provides support and protection
The cell wall allows the cell to become quite turgid without bursting

9. Mitochondria
A eukaryotic membrane-bound organelle that transforms energy stored in food molecules is called mitochondria
Mitochondria have highly folded membranes that produce energy-storing molecules
Mitochondria is the powerhouse of the cell

10. Golgi Apparatus
The Golgi apparatus is an organelle in eukaryotic cells with a system of flattened tubular membranes
It sorts and packages proteins and sends them to their appropriate destinations

11. Lysosome
A lysosome contains digestive enzymes and is responsible for digesting excess or worn out organelles, food particles, and engulfed viruses or bacteria

12. Vacuole
A vacuole is a membrane-bound space in the cytoplasm of cells used for the temporary storage of materials
The vacuole in a plant is very large

13. Centrioles
In animal cells, a pair of small cylindrical structures composed of microtubules called centrioles duplicate during interphase and move to opposite ends of the cell during prophase

14. Chromatin
Long strands of DNA found in the eukaryotic cell nucleus is known as chromatin and condenses to form chromosomes

15. Endoplasmic Reticulum
The endoplasmic reticulum is an organelle in eukaryotic cells with a series of highly folded membranes surrounded in cytoplasm
It is the site of cellular chemical reactions
Can be rough “ER” with ribosomes attached or smooth ER without ribosomes

16. Ribosomes
Ribosomes are non-membrane-bound organelles in the nucleus where proteins are assembled

17. Cytoplasm
Cytoplasm is the clear, gelatinous fluid in cells that is the site of numerous chemical reactions
In eukaryotes, it suspends the organelles

18. Nucleus
The nucleus is the central membrane-bound organelle that manages cellular functions and contains DNA
The nucleus is surrounded by a nuclear membrane which can dissolve or allow structures out to the cytoplasm

19. Nucleolus
The nucleolus is found in the nucleus and produces ribosomes

20. Review
To link to an Internet site on parts of the cell click here!