QUIZ 2 CELLS Flashcards
working distance
distance between objective lens and sample
magnification
makes object larger via dual lense (ocular and objective)
resolution
distinguish two objects as distinct/separate
plasma membrane
semipermeable phospho bilayer
cytoplasm
composed of cytosol, provides structural and anchor support
nucleus
contains DNA and proteins
nucelolus
condensed site of ribosome synthesis
ribosomes
site of protein synthesis
bound ribosomes
synth proteins for extracellular use
free ribosomes
synth protein for intracellular use
rough ER
synth proteins and phospholipids
smooth ER
synth lipids and steroids
golgi apparatus
modifies, packages, distributes proteins and lipids synth by ER, released by exocytosis via secretory vesicles
lysosomes
golgi vesicles w/ enzymes that digest foreign material by phagocytosis
peroxisomes
vesicles w/ enzymes that detox alcohol/chemicals/peroxides
mitochondria
produce ATP energy
centrioles
pull chromosomes apart during mitosis
cytoskeleton
provides structure and increases mobility/surface area
mitosis
cell division that produces diploid somatic cells w/ 2 sets chromosomes
meiosis
cell division produces haploid gametes w/ single set chromosomes
interphase
cell prepares for division by replicating DNA and doubling in size
prophase
chromatin condenses to chromosome and centrioles project spindle fibers, envelope/nucleotides disappear
metaphase
chromosomes attach by centromeres at equator and held by spindle fibers
anaphase
chromatids separate into chromosomes and sets pulled to opp sides
telophase
cytokinesis and development of nuc envelope forms around chromosomes (decondense)
cytokinesis
division of cytoplasm during telokinesis
