Mrs. D - Porifera
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
|
||||||
|---|---|---|---|---|---|---|---|---|
| Kingdom Animalia | collective classification of multicellular organisms | invertebrates and vertebrates
🗑
|
||||||
| Colonial Hypothesis | multicellularity may have arisen when cells produced by a dividing protist remained together | colonial protists
🗑
|
||||||
| Syncytial Hypothesis | multicellularity could have arisen when plasma membranes were formed within the cytoplasm of a large, multinucleate protist | multiple fission
🗑
|
||||||
| Phylum Porifera | cellular organization, multicellular, division of labor, asexual/sexual reproduction, symmetry, mostly marine | sponges
🗑
|
||||||
| Porifera | pore-bearing/pore-bearers | 9000 species of sponges
🗑
|
||||||
| Radial Symmetry | two or more planes that divide the organism into mirror images | sponges or jellyfish
🗑
|
||||||
| Asymmetry | no symmetry | amoeba
🗑
|
||||||
| Sessile | permanently attached to a substrate | all adult sponges
🗑
|
||||||
| Intracellular Digestion | within the cell | bacteria, protists, algae, detritus
🗑
|
||||||
| Ostia (ostium) | incurrent pores; many small pores; allows for the passage of water into the spongocoel | Grantia or Scypha
🗑
|
||||||
| Osculum (oscula) | excurrent pore: large pore; allows water to exit spongocoel; can have more than one | Grantia or Scypha
🗑
|
||||||
| Spongocoel | internal cavity; not a true body cavity; food/oxygen extracted from water in cavity | Grantia or Scypha
🗑
|
||||||
| Pinacocytes | flat cells forming the outer epithelium | any sponge
🗑
|
||||||
| Porocyte | cells that line the pore and regulates water flow | any sponge
🗑
|
||||||
| Choanocytes | "collar cells", flagellated cells that line the interior; creates the water current and filters for food | any sponge
🗑
|
||||||
| Mesoglea | gelatinous protein matrix that fills the space between the pinacocytes and choanocytes | mesohyl - another name
🗑
|
||||||
| Amoebocyte | cell found in the mesoglea; specialized for reproduction, secreting skeleton, transporting food, storing food, and forming contractile rings | any sponge
🗑
|
||||||
| Acoelomate | NOT a true coelom | any sponge
🗑
|
||||||
| Spicules | calcareous or siliceous; variety of shapes and sizes | see spicule handout
🗑
|
||||||
| Spongin Fibers | internal network of flexible protein fibers composed of collagen | bath sponge
🗑
|
||||||
| Ascon (asconoid) | vase-like shape; simplest and least common; ostia lead directly to spongocoel | Class Calcarea
🗑
|
||||||
| Sycon (syconoid) | sponge wall appears folded; water enters through dermal pores which connect to radial canals which open into the spongocoel | Class Calcarea or Hexactinellida
🗑
|
||||||
| Leucon (leuconoid) | extensively branched canals; incurrent canals open into choanocyte chambers and excurrent canals lead away from the chambers | Class Hexactinellida or Demospongiae
🗑
|
||||||
| Color | wide variety | red, yellow, orange, green, purple, blue, black
🗑
|
||||||
| Toxic sponges | contain toxins on the spicules | Fire Sponge
🗑
|
||||||
| Reproduction | asexual or sexual | regeneration/ egg and sperm
🗑
|
||||||
| Regeneration | asexual; replacement of injured or lost body parts | any sponge
🗑
|
||||||
| Gemmules | asexual; internal buds; masses of encapsulated amoeboid cells produced during unfavorable conditions | some sponges
🗑
|
||||||
| Sexual Reproduction | egg and sperm; fertilization in mesoglea; zygote to ciliated larvae; 2 days larvae settles | some sponges
🗑
|
||||||
| Monoecious | both sexes in one individual | most sponges
🗑
|
||||||
| Dioecious | separate sexes | some sponges
🗑
|
||||||
| Cross-fertilization | exchange sperm and egg | primarily used by most sponges
🗑
|
||||||
| Class Calcarea | a.k.a. Calcispongiae; limy sponges; calcium carbonate spicules; fringe of spicules around osculum; needle or 3-4 rayed spicules; all three body forms; all marine | Grantia (Scypha), Leucosolena
🗑
|
||||||
| Class Hexactinellida | a.k.a. Hyalospongiae; glassy sponges; silicon dioxide spicules; six-rayed; intricate lattice; sycon or leucon; all marine; deep water | Euplectella - Venus Flower Basket
🗑
|
||||||
| Class Demospongiae | people/natural sponges; silicon dioxide or spongin fibers or both; needle or 4-rayed spicules; all marine except one family; brilliantly colored | Spongilla (fresh), Haliclona (finger), Microciona (red beard), sheepswool (bath), fire sponge, loggerhead
🗑
|
||||||
| Sponillidae | only family of freshwater sponges | Spongilla
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
Mrs. D
Popular Science sets