Cells Review Flashcards
Prokaryote
Lack internal membranes
Eukaryote
Have internal membranes + organelles
Cell wall purpose
Surrounds protoplasm (all living parts of the cell)
Support
Protection
Middle lamella purpose
Attaches cells together
Primary cell wall
Flexibility?
Made of?
Flexible
Made up of cellulose, hemicellulose, pectin, glycoprotein
Secondary cell wall purpose
Strength? Thickness? Made of?
Very strong
Thickness varies
Cellulose
Plasmodesmata purpose
Opening between cells where cell wall is not created
Chemical communication
Plasma Membrane location?
Lines cell wall
Protoplasm location
All areas within plasma membrane
Nucleus is bound by?
Consists of?
What does nucleolus hold?
Bound by nuclear envelope
DNA
Nucleolus-RNA
Cytoplasm location?
Includes?
All the “stuff between the plasma membrane and the nuclear envelope
Cytosol and Organelles
Cytosol =
“Liquid” part of the cytoplasm
Organelles =
“Solid” parts of the cytoplasm
Endoplasmic Reticulum purpose
Makes membranes
Fine-tunes proteins
Ribosomes purpose
Protein synthesis