Studied by 16 people
Hydra
round base body, a cylindrical stalk, and a mouth surrounded by tentacles
Medusa
Free-swimming, umbrella shaped form of coelenterate
Polyp
cylindrical body type that is sessile and has mouth facing up
Golgi apparatus
shipping center of cell
Ribosome
protein factories of the cell
Vacuole
store food and other materials for later
Filarial worm
infects the lymphatic system and causes elephantiasis
Flukes
parasites that mostly live in
Planarians
free-living flatworms that live as scavengers
Earthworm
obtain oxygen through its skin
Cell wall
outside cell membrane that provides support and protection
Cytoplasm
fluid medium of cell
Cytoskeleton
internal skeleton to maintain the cell shape
Enzymes
protein molecules
Mitochondria
“power plants” of a cell
Nucleolus
region within nucleus that makes ribosomes
Cytokinesis
cytoplasm separates to form 2 cells
Cephalopods
squid, octopus, and nautilus
Cytology
study of cells
Osculum
large mouth like opening of a sponge
Ostia
incurrent pores of sponge where water enters through
Centrosome
microtubule organizing center
Rotifers
named for rotating appearance of the cilia on their front ends
Invertebrates
animals with no backbone
Nudibranchs
Marine slugs
Conch
A tropical marine mollusk with a spiral shell that may bear lung projections and have a fluted lip
Cilia
hairlike projections
Nautilus
only cephalopod with external shell
Nuclear envelope
separates nucleus from rest of cell
Setae
bristles that help earthworms move through soil
Pseudopods
false feed of amoeba
Echinoderms
A marine invertebrate of the phylum
Adductor muscles
holds the shells together
Bivalves
clams and scallops
Gastropoda
snails, slugs, conchs, and nudibranchs
Sponges
sessile invertebrates that lack a nervous system
ATP
phosphate molecule that serves as energy carrier of cell
Squid
torpedo shaped that moves by “jet propulsion”
Cell theory
all living things are composed of cells
Sea Worms
largest class of segmented worms
Sea anemones
beautiful “flowers” of the ocean with stinging tentacles
Amoeba
protozoan that uses pseudopods to move and engulf prey
Didinium
barrel-shaped ciliate that feeds on paramecia
Leeches
parasite known fort feeding on blood
Euglena
protozoan that possesses a flagellum, chloroplasts, and an eyespot
Paramecium
Ciliated protozoan that appears slipper-shaped under microscope
Stentor
trumpet shaped ciliate
Phagocytosis
cell engulfs solid food; “cell eating”
Pinocytosis
cell engulfs liquids; “cell drinking”
Lysosome
organelle that acts as a recycling center
Trypanosome
parasitic flagellate that is transmitted by a tsetse fly bite; causes African sleeping sickness
Vorticella
body shape of upside down bell
Segmented worms
earthworms, sea worms, and leeches
Rays
arms of starfish
Robert Hooke
first scientist to observe cells through a microscope
Scolex
tapeworms head
Mantle
skinlike organ of mollusk that covers the internal organs and produces the cell
Note 
Flashcard (335)