Chapter 4 : A Tour of the Cell Parts Flashcards
Cell size
- related to the need to exchange material across the plasma membrane
- cell size is linked to surface area:volume ratio
Prokaryotic cells are found in the Domains
Bacteria and Archaea
Common features of Prokaryotic and Eukaryotic cells include
- plasma membrane
- one or more chromosomes and ribosomes
Eukaryotic cells have
- “true” membrane-bound nucleus
- large number of other membrane bound organelles
Prokaryotes have
- nucleoid region
- no true organelles
Nucleoid
The region in which the DNA of prokaryotic cells is coiled
The surface of prokaryotic cells may have
-be surrounded by a chemically complex cell wall
-have capsule surrounding the cell wall
-have fimbriae or flagella
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Organelles involved in genetic control
- nucleus
- ribosomes
Organelles involved in manufacture, distribution, and the breakdown of molecules
- endoplasmic reticulum
- golgi apparatus
- lysosomes
- vacuoles
- peroxisomes
Organelles involved in energy processing
- mitochondria
- chloroplasts
Organelles involved in structural support, movement, and communication between cells
- cytoskeleton
- plasma membrane
- cell wall
Cellular metabolism
the sum of all chemical activities of cells, occurs within organelles and the cytoplasm
The differences between animal cells an plant cells
-lysosomes and centrioles
