What are the three components of the cell theory
- All living organisms are composed of one or more cells
- Cells are the basic or smallest units of life
- Cells come from pre-existing cells by cell division.
| Term | Definition |
|---|---|
What are the three components of the cell theory | - All living organisms are composed of one or more cells
- Cells are the basic or smallest units of life
- Cells come from pre-existing cells by cell division. |
What are the four common cell structures found in all cells | - Plasma Membrane
- Cytoplasm
- DNA
Ribosomes |
What is the function of the plasma membrane | The selective barrier of the cell |
What are the functions of the cytoplasm | - Location of the metabolic center
- Provides an avenue for internal transport in the cell |
What is the function of DNA | Blueprint of life for the organism |
What is the function of ribosomes | Protein factories of the cell |
Basic cell structures | - Cytoplasm, cytosol, cytoskeleton
- Endoplasmic reticulum
- Vacuoles
- Cell wall
- Plasma membrane |
Cytoplasm, cytosol, cytoskeleton | - Cytoplasm: metabolic center and internal transport
- Cytosol: metabolism
- Cytoskeleton: |
Endoplasmic reticulum | Biomolecule factories found in eukaryotic cells |
Vacuoles | - Storage facilities found in eukaryotic cells
- takes up to 90% of a plants volume
- Stores: water, salts, water soluble pigments, and waste materials |
Cell wall | - Provides support and structure
- Unique to plant cells |
What is the theory of endosymbiosis? | Theory the origin of mitochondria and chloroplasts |
The three tissue systems found in plants | - Ground tissue system: storage and support
- Vascular tissue system: transport
- Dermal tissue system: protection |
Cells found in the ground tissue system | - Parenchyma: Thin primary wall, living with large vacuoles, responsible for photosynthesis
- Collenchyma: Thick primary cell walls containing cellulose, support tissue
- Sclerenchyma: Thick secondary cell wall providing support and protection, fibrous |
Cells found in the vascular tissue system | - Xylem: Tracheids responsible for lateral water movement, stacked water pipes
- Phloem: Sieve tube cells, living cells responsible for transporting sugars |
Cells found in the dermal tissue system | - Epidermis: A single exterior layer of cells found in herbaceous plants (non woody)
- Periderm: Multiple layers of cells found in woody plants |