Structure and Function of Cells Flashcards
Cell wall
Rigid/semi-rigid structure that encloses cell
Cellulose molecules
Polysaccharide
Micelle
Cellulose arrangement/bundle
Microfibril
Bundled micelles
Macrofibril
Bundled microfibrils
Shorter chains of other sugars, composed part of cell wall
Hemicellulose
Polysaccharides (not cellulose) composes part of cell wall
Pectin
Carbs that compose part of cell wall
Lignins
Middle lamella
Thin, mostly pectin, shared between 2 cells
Primary cell wall
25% cellulose, 75% others
Secondary cell wall
Extremely rigid, indicates death, 75% cellulose 25% lignin etc (NO Pectin or Glycoproteins)
Narrow strands of cytoplasm connecting cells
Plasmodesmata
Thinner areas of cell wall containing many plasmodesmata
Primary pit fields
Membrane-bound sac, makes up 95% of cell
Vacuole
1-layer membrane around vacuole
Tonoplast