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Midterm

BIO 3102 Study Guide - Midterm Guide: Cnidocyte, Microvillus, Phagocytosis


Department
Biology
Course Code
BIO 3102
Professor
All
Study Guide
Midterm

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How they Feed Movement Reproduction Adaptation
Cnidaria
(cnidocyte cells)
- incomplete
digestive tract, no
end, must ingest and
then spit out waste
-stings prey
-digestive enzymes
enter gut, then
phagocytosis and
intracell digest
-cessile
-jet
propulsion
-asexual
budding/fragmen
t
-sexual
Gametes
released into
water, forms
polyp
-tipped onto side
-cnidocytes
-interstitial cells
can regrow
Porifera -flagellum pulls water
between the collar's
microvilli
-Particles, bacteria,
and single-celled
algae are trapped in
the microvilla
- phagocytosis
-none -Choanocytes
become sperm
-Archeocytes
(stem cells)
become egg
-amoebocytes
carry sperm to
egg
-recognize own
species
-skeleton of
spicules hold
skeleton up
-no tissues, has
layers
-aquiferous
pumping system
Platyhelminthes -mouth connects with
incomplete gut that
branches throughout
the body
-contraction
of longitudal
muscles
-push head,
pull body
-hermaphroditic
-sperm in
seminal
vesicles/receptac
le
-sexual
-hooks, suckers
to attach
-protective outer
coat/wall
Annelida -complete digestive
system
-eat sediments or
organism in dirt
-use
longitudinal
muscles,
sine waves,
setal hairs
used to
anchor
-budding
-sexual (males
have amoeboid
sperm)
-has metamere:
repeated section
with same
organs
-uses posterior and -longitudinal -sexual -
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