Chapter 6 Flashcards
Where is dna located in both eukaryotic cells and prokaryotic cells?
Pro: in nucleoid which is not membrane enclosed
Eukaryotic: in the nucleus and some in the mitochondria and chloroplasts as well
Microvilli
Cells increase their surface area by creating microvilli without an appreciable increase in cellular volume
Flagellum
Motility structure present in some animal cells composed of a cluster of microtubules within an extension of the plasma membrane.
Centrosome
Region where the cells microtubules are initiate, contains a pair of centriolies
Cytoskeleton
Reinforces cells shape and functions in cell movement.
Consisting of microfilaments, intermediate filament, and microtubules.
Endoplasmic reticulum (ER)
Network of membranous sacs and tubes, active membrane synthesis and other synthetic and metabolic processes
Nucleus
Nuclear envelope-double membrane enclosing the nucleus, proliferated by pores
Nucleons-non membranous structure involved in production of ribosomes
Chromatin-material consisting of dna and proteins
Ribosomes
Complexes that make proteins, free in cytosol and bound in rough ER or nuclear envelope
Golgi Apparatus
Organelle active in synthesis modification, sorting and secretion of cell product
Lysosomes
Digestive organelle where macromolecules are hydrolyzed
Mitochondrion
Organelle where cellular respiration occur and most ATP is generated
Peroxisome
Organelle with various specialized metabolic functions, produces hydrogen peroxide as a by-product then converts it to water
Chromatin
The complex of dna and proteins making up chromosomes
rRNA
Synthesized in the nucleolus
Similarities of prokaryotic and eukaryotic cells
Plasma membrane, cytosol, chromosomes which carry DNA, ribosomes, cytoplasm (name of interior part of each cell)
