Parts of a cell Flashcards
Cell theory
- All living things are composed of one or more cells
- Cells are the basic units of structure and function in living things
- New cells arise from preexisting cells
Why are cells so small
To maximize surface area per volume
what do all cells share
Plasma mebrane, DNA, Cytoplasm, and RIbosomes
Nucleus
Function:
-Contains all DNA
-Directs all cell function
Structure:
-Nuclear membrane
-nuclear pores
-nucleolus
-chromatin
-nucleus envelope
Cell Membrane
Function:
-separates the inside of the from the outside
-allows certain things to go in and out of the cell
Structure: Enzymes, phospholipids, cholesterol, glycoprotein
Cytoplasm
Function:
Makes up the volume of the cell
Structure:
Cytosol, and everything in the cell
Smooth ER
Function:
Makes lipids and phospholipids
Detoxifies alcohol
Structure:
Rough ER
Function:
Has ribosomes
Makes protiens
Structure:
Ribosomes
Function:
Where proteins are made
Structure:
Made up of RNA and protein
Golgi Apparatus
Function:
-Separates protiens and lipids from ER according to destination
-Modifies some molecules
-Packages and ships these nutrients in vesicles
Structure:
Cytoskeleton
Function:
-Cell shape
-cell movement
-organelle movement
-cell division
Structure:
Actinfilment, intermedietfinment microtubeul
Lysosomes
Function:
-Cells digestive system.
-Digests broken organelles
-breaks down food
Structure:
Cilia
Function:
Helps with cellular movement
Structure:
Little tiny hairs
FLagella
Function:
Helps move cells
Structure:
Long tail
Vacuoles
Function:
Where cells store water content
Structure:
Contractile vacuoles and central vacuoles