Nematodes - Roundworms Flashcards
1
Q
What is the name given to moulting animals
A
Ecdysozoans
2
Q
symmetry, Blastia and Coelom
A
Bilateral, triploblastic and pseudocoelomate
3
Q
Outline the moulting process - what is the cuticle made out of
A
Synthesis of a new cuticle - exsheathment by wiggling out of old cuticle - Collagen
4
Q
Outline the general lifecycle of nematodes (6)
A
- Egg
- Egg hatched forming Larval stage 1
- Moulting from L1 to L2
- Moulting from L2 to L3
- Moulting from L3 to L4
- L4 moults to form adult stage
5
Q
What term is given to the movement of nematodes and what is it due to
A
Sinusoidal wave as only longitudinal muscle present
6
Q
Nematodes exhibit dimorphism - what is it?
A
An anatomical difference between sexes - female is larger than male
7
Q
Give 1 example of a nematode and why it is important
A
C.elegans - First genome to be sequenced
8
Q
Give 3 examples of nematodes
A
Ascaris suum
Hookworms
Pinworms
