Unit 3 Study Guide - Platyhelminthes Review

Front 1

Functions of a parenchyma of a flatworm:

Back 1

Transport materials and provide skeletal support

Front 2

Does a planarian have a mouth or anus?

Back 2

Has a mouth but no anus

Front 3

Free-living flatworms are in what class?

Back 3

Turbellaria

Front 4

Functions of a turbellarians gastrodermis:

Back 4

Secrete enzymes used for digestion

Front 5

What are rhabdites and what is their function?

Back 5

Rod-like cells that swell and form a protective mucus layer

Front 6

Describe how turbellarians move:

Back 6

Cilia and muscular ungulation

Front 7

Why do turbellarians have a highly branched digestive system?

Back 7

Makes up for lack of circulatory system

Front 8

Is digestion of turbellarians intracellular, extracellular, or both?

Back 8

Both

Front 9

What are protonephridia?

Back 9

Network of tubes that run length of organism - excretory system

Front 10

Difference between sensory and motor neurons?

Back 10

Sensory - to the brain

Motor - away from the brain

Front 11

Brief description of subclass Aspidogastrea:

Back 11

Primarily internal parasite of mollusk

Front 12

Define Auricles, Ocelli, and Zooids

Back 12

Auricles - homoreceptors for finding food

Ocelli - eyespots

Zooids - asexual reproduction in turbellarians -- division

Front 13

Name for free swimming turbellarian larva:

Back 13

Muller's Larva

Front 14

Parasites from class Monogenea infect what animal?

Back 14

Fish

Front 15

What is a tegument?

Back 15

Outer layer

Front 16

What is glycocalyx?

Back 16

- made of carbohydrates and protiens

- protects organism form host's enzymes

Front 17

Description of class Digenea:

Back 17

Have two or more larval stages

Front 18

Define oncomiracidium

Back 18

Larval stage of Monogenea

Front 19

What is a shistome?

Back 19

Blood fluke

Front 20

Which class of Platyhelminthes is most specialized?

Back 20

Cestodia

Front 21

A tapeworms Stromboli is made of what?

Back 21

Proglottids

Front 22

Define miracidium:

Back 22

First larval stage of digenetic fluke

Front 23

Define metacircarea:

Back 23

Insisted circarea stage of digenetic fluke

Front 24

Does a tapeworm have a mouth?

Back 24

No, absorbs food through skin

Front 25

Does a tapeworm have intestines?

Back 25

Yes, very simple ones.

Front 26

What is a scolex?

Back 26

Suckers and hooks of a tapeworm

Front 27

The six-hooked (hexacanth) larva that develops from the of of the beef tapeworm is the ________________.

Back 27

Onchosphere

Front 28

Define cysticerus

Back 28

Bladder worm

Front 29

What is unique about Nemerteans?

Back 29

Have a proboscis and a complete digestive tract

Front 30

What is a proboscis worm and what do they use rhyncocoel for?

Back 30

Protection and hunting

Front 31

The helmet-shaped, cilia Ted larva of Nemerteans is the ______ ________.

Back 31

Palidium larva