Text Chapter 3: Cells Flashcards
Essential Features of a Cell
plasma membrane, genetic material, cytoplasm
Plasma Membrane
boundary surrounding the cell
Genetic Material
DNA, located in membrane-bound nucleus for eukaryotic cells, nucleoid for prokaryotic cells
Cytoplasm
semi-fluid matrix containing enzymes (biological catalyst), ribosomes, and organelles in eukaryotes
Bacterial Flagellum
movement
Capsule
protects from drying, protects against white blood cells
Cell Wall (prokaryotic)
supports the cell, maintains shape
Infolded Plasma Membrane (prokaryotic)
metabolism, cell division
Nucleoid
cytoplasmic region containing the genetic material, DNA
Pilus
surface projection used for transfer of genetic material
Plasma Membrane
regulates flow of substances in and out of cell
Plasmid
small circular DNA, replicates independently, genes for antibiotic resistance
Ribosomes (prokaryotic)
produce proteins
Cell Wall (eukaryotic)
controls cell shape, protects, supports, made of carbohydrates
Centriole
gives rise to basal bodies that produce cilia or flagella