Porifera

epidermis

external cell layer in sponges

porocyte

form the many holes in the body of the sponge and are channels through which water passes into the body of these animals

budding

asexual reproduction in which a part of the parent organism pinches off and forms a new organism

Porifera

Phylum of sponges

sessile

attached to a surface, non-moving

gamete

sex cell

zygote

fertilized egg

glass sponges

group of sponges with silica spicules

commercial sponges

group of sponges without spicules, have spongin proteins

asymmetry

type of symmetry in sponges

spicules

sharp structural components of a sponge made of calcium carbonate or silicon dioxide

osculum

#1 A large opening on a sponge through which filtered water is expelled

porocyte

indicated by the arrow

choanocyte

#4 any of the flagellated cells in sponges having a collar of cytoplasm around a flagellum

amoebocyte

mobile cells in the jelly like middle layer of sponge that
digest food and distribute nutrients to sponge body
creates spicules
What is this cell name?

choanocyte

Collar cells that line the body cavity and have flagella that circulate water in sponges

filter feeder

organism that takes in water to filter out the food and then releases the extra water (clam, oysters, sponge)

osculum

A large opening on a sponge through which filtered water is expelled

sessile

Describes an organism that remains attached to a surface for its entire life and does not move

spicule

small, spike shaped particles of calcium carbonate or silicon dioxide that make up the skeleton of some sponges

porocyte

form the many holes in the body of the sponge and are channels through which water passes into the body of these animals

gemmules

contain sponge cells protected by spicules that will survive and grow again when favorable conditions occur

Intracellular digestion

process in which food is digested inside cells

amoebocyte

mobile cells in the jelly like middle layer of sponge that
digest food and distribute nutrients to sponge body
creates spicules

budding

Asexual reproduction in which a part of the parent organism pinches off and forms a new organism

Asymmetrical

irregular in shape or outline

Spicules

small, spike shaped particles of calcium carbonate or silicon dioxide that make up the skeleton of some sponges

Spongin

the network of protein fibers making up the simple skeleton of some sponges

Sessile

describes an organism that remains attached to a surface for its entire life

Ostia

The intake pores on a sponge

Osculum

large hole at the top of the sponge through which water leaves the sponge. plural - oscula

Choanocyte

specialized cell in sponges that uses a flagellum to move a steady current of water through the sponge, also called collar cells

Filter feeder

organism that filters small particles from water to get its food

budding

form of asexual reproduction in which a new, genetically-identical organism forms on the side of its parent

gemmules

contain sponge cells protected by spicules that will survive and grow again when favorable conditions occur