Invert Exam 4

Front 1

Stylet

Back 1

Piercing mouth part

Front 2

Renette cells

Back 2

Specialized excretory cell in nematodes

Front 3

Amphids

Back 3

Chemoreceptor cell in nematodes

Front 4

Annules

Back 4

Rings around nematodes

Front 5

Pellicle

Back 5

A thin layer supporting the cell membrane

Front 6

Extrusomes

Back 6

Membrane bound structure that discharges it’s contents outside of the cell

Front 7

Binary fission

Back 7

Asexual reproduction when a cell divides and gives rise to 2 cells

Front 8

Pseudopodia

Back 8

Temporary projection of cytoplasm for locomotion

Front 9

Endocytosis

Back 9

Transport of food into a cell using a vacuole

Front 10

Alveoli

Back 10

System of flattened sacs in dinoflagellates

Front 11

Apical complex

Back 11

Attaches the parasite to the host cell and releases a substance that makes the host draw the parasite in

Front 12

Macronucleus

Back 12

The larger nucleus in a protist

Front 13

Micronucleus

Back 13

The smaller nucleus in a protist

Front 14

Hydrogenosomes

Back 14

Highly modified mitochondria

Front 15

Mitosomes

Back 15

Mitochondria-like organelle in protists

Front 16

Pinacocytes

Back 16

On of the flattened cells in porifera that makes up the outer surface

Front 17

Choanocytes

Back 17

Flagellated cell which lines the internal chambers of sponges

Front 18

Mesohyl

Back 18

Gelatinous matrix in a sponge

Front 19

Ostia

Back 19

Hole in a sponge

Front 20

Spongocytes

Back 20

Cell that secretes spongin

Front 21

Spongin

Back 21

Protein that forms skeleton of sponges

Front 22

Sclerocyte

Back 22

Specialized cells that secrete the mineralized structures in the body walls in inverts

Front 23

Archeocyte

Back 23

Type of amebocyte that develops into reproductive cells

Front 24

Gemmules

Back 24

Tough-coated cluster of embryonic cells in a sponge

Front 25

Water vascular system

Back 25

Used for locomotion, feeding, waste, and respiration in echinoderms

Front 26

Oral surface

Back 26

side of the mouth in echinoderms

Front 27

Aboral

Back 27

Side opposite the mouth in echinoderms

Front 28

Tube feet

Back 28

Fluid filled muscular tubes of echinoderms used for locomotion and respiration

Front 29

Ambulacra

Back 29

Groove on underside of echinoderms

Front 30

Ring canal

Back 30

Circular water tube in echinoderms

Front 31

Madreporite

Back 31

Plate functioning as a trap door for bringing in and expelling water in echinoderms

Front 32

Ossicles

Back 32

Small bone in middle ear

Front 33

Pedicellariae

Back 33

Small appendage with movable jaws

Front 34

Stone canal

Back 34

Tube in echinoderms that contain deposits and lead to the madreporite to the ring canal

Front 35

Pinnules

Back 35

Small branches

Front 36

Calyx

Back 36

Funnel shaped structures that are passageways of urine

Front 37

Cardiac stomach

Back 37

Part of stomach between the cardiac valve and the caecum

Front 38

Pyloric stomach

Back 38

Part of stomach that closes the opening from the stomach to the intestine

Front 39

Pyloric ceaca

Back 39

Part of intestine that aids digestion

Front 40

Aristotle’s lantern

Back 40

Structure supporting teeth of sea urchins

Front 41

Respiratory trees

Back 41

Respiratory apparatus with a short tube in hind gut and two long tubes with branches

Front 42

Cuvierian tubules

Back 42

Clusters of sticky tubules at base of respiratory tree, discharged by sea cucumbers

Front 43

Proboscis

Back 43

Hollow organ connected to head (trunk, snout...)

Front 44

Collar

Back 44

Band around neck of animal

Front 45

Trunk

Back 45

Enlarged proboscis

Front 46

Notochord

Back 46

Skeletal rod supporting the body in embryonic animals

Front 47

Dorsal neural tube

Back 47

Develops in brain and spinal cord

Front 48

Pharangeal Gill slits

Back 48

Filter feeding organs in invertebrates

Front 49

Postanal tail

Back 49

Tail

Front 50

Endostyle

Back 50

Long ciliated groove that produced mucus to gather food particles