Cells Flashcards
1
Q
Cell Theory
A
The cell is the smallest structural and functional living unit
Organismal functions depend on individual and collective cell functions
Biochemical activities of cells are dictated by their specific subcellular structures
Continuity of life has a cellular basis
2
Q
Generalized Cell
A
All cells have some common structures and functions
Human cells have three basic parts:
Plasma membrane—flexible outer boundary
Cytoplasm—intracellular fluid containing organelles
Nucleus—control center
3
Q
Plasma Membrane
A
Bimolecular layer of lipids and proteins in a constantly changing fluid mosaic
Plays a dynamic role in cellular activity
Separates intracellular fluid (ICF) from extracellular fluid (ECF)
Interstitial fluid (IF) = ECF that surrounds cells
