Hint: these organisms have pores through which sea water is pumped

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Hint these organisms have pores through which
sea water is pumped
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What is the common name of these organisms
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sponges
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Name the phylum
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Porifera
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Name the special cells
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Choanocytes look like this
inside of sponge
outside of sponge
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Choanocytes look like this
inside of sponge
outside of sponge
The nucleus is in the main part of the cell
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Choanocytes look like this
inside of sponge
outside of sponge
collar
The the collar and flagellum are special parts of
the cell that help in filter feeding and
propelling water, respectively.
The the collar and flagellum are special parts of
the cell that help in filter feeding and
propelling water, respectively.
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Choanocytes look like this
inside of sponge
outside of sponge
collar
The collar secretes a mucus that functions as a
glue to capture food particles from the incoming
seawater, making them available for the cell to
eat by phagocytosis.
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pore
Notice that the choanocytes are packed tightly
together. Other specialized cells are packed
among them and form the pores typical of this
phylum
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What is the name of this phylum?
pore
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pore
PORE ifera --ifera means bearing or having
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pore
PORE ifera -ifera means bearing or having
hence Porifera
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These pores are collectively are referred to as _
_ _ _ _.
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The pores collectively are referred to as _ _ _ _
_.
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The opening at the top of the sponge is referred
to as an _ _ _ _ _ _ _.
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The opening at the top of the sponge is referred
to as an _ _ _ _ _ _ _.
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Osculum means mouth --ation means process of _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Critical
thinking question do you believe in osculation
before marriage?
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YES! Absolutely.
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Other than pores and choanocytes, what other
structure do you see in this picture?
?
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A spicule. Spicules are formed of one of several
different substances including a soft material
referred to as ______. All together, the
spicules form an endoskeleton that functions for
_______ and ________
spicule
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Spicules form an endoskeleton that functions for
support and protection.
a soft material referred to as spongin
spicule
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In summary, name the four or five structures or
cells that distinguish organisms in this phylum
from other phyla?
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• choanocytes

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• choanocytes
• body includes ostia and an osculum

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• choanocytes
• ostia and an osculum
• spicules (sometimes of soft spongin material)

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• choanocytes
• ostia and an osculum
• endoskeleton of spicules (sometimes of soft
  spongin material)
• cellular level of development regeneration