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Chapter 25

biol 130 exam 3

TermDefinition
eukaryotes specialized group of archaea that acquired a cell nucleus
phagocytosis ability to engulf and digest other cells in digestive vacuoles was an important step
lysosomes digestive vacuoles eventually incorporated digestive enzymes
endoplasmic reticulum a network of membranous tubules within the cytoplasm
golgi apparatus a complex of vesicles and folded membranes within the cytoplasm
primary endosymbiosis one eukaryote engulfed a cyanobacterium
secondary and tertiary endosymbiosis gave rise to chloroplasts in the other photosynthetic eukaryotes
alveolates single-celled with distinctive small cavities beneath cell surface
stramenphile fine, hair-like projects on flagella
rhizaria pseudopods, movement and feeding
excavates feeding groove, no mitochondria
amoebozoans lobe-shaped pseudopods, no shells
equal splitting splitting of one cell into 2; mitosis followed by cytokenesis
budding outgrowth of a new cell from the surface of an old cell
sporulation formation of specialized cells (spores) that can grow into new individuals
conjugation 2 cells exchange genes and go separate ways, exchange micronuclei, not reproduction
alternation of generations Multicellular diploids spore-forming organism gives rise to a multicellular haploid gamete-forming organisms
sporophyte Multicellular diploid generation
heteromophric The generations may be different morphologically
isomorphic The generations have similar morphology
sporocytes Specialize cells in the sporophyte
diatoms single-celled agla which has a cell wall of silica
foraminiferans single-celled Plaktonic animal with a perforated chalky shell
Created by: acatherine04
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