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Phylum Porifera (Sponges) Review

Total questions: 43

Worksheet time: 26mins

Name
Class
Date
1.

Name of D (opening at top) (a)  

Choose from the below words
Osculum
Ostia
Choanocytes
Incurrent Pore
2.

Water exits the sponge here (a)  

Choose from the below words
A
B
C
D
3.

The sponge has no organs, tissues, and no nervous system.

a)

True

b)

False

4.

Flagella inside a sponge keep water moving through its body. Why is this necessary?

a)

It prevents the sponge from floating away

b)

It allows the sponge to feed

c)

It allows the sponge to absorb carbon dioxide

d)

It maintains the water pressure inside the sponge

5.
Sponges get their food by 
a)
going through photosynthesis
b)
decomposing it
c)
sponges do not eat
d)
filter feeding
6.
Most sponges are hermaphrodites.  What does this mean?
a)
sponges can produce their own food
b)
sponges can produce both eggs and sperm
c)
sponges cannot reproduce
d)
sponges can swim around
7.
What is the name of the phylum sponges belong to?
a)
mammals
b)
chordate
c)
cnidarians
d)
Porifera
8.
___________ are tiny hard particles that give a sponge support and can provide protection when they stick out of a sponge.
a)
spongin
b)
bones
c)
buds
d)
spicules
9.
Sponges have many pores or ______ to circulate water. 
a)
osculum
b)
holes
c)
ostia
d)
spongin
10.
cells have sticky, funnel-shaped collar to collect food particles and a flagellum that creates a water current
a)
amoebocyte
b)
ostiocyte
c)
pinacocyte
d)
choanocyte
11.

How do sponges obtain food?

a)

filter it from the water

b)

grasp it with tentacles

c)

pry it apart with tube feet

d)

put it in their mouth with jointed legs

12.
What is true about sponges?
a)
They have organs
b)
They have bilateral symmetry
c)
They have a true coelom
d)
They are animals
13.

The cells inside the sponge that have flagella (and absorb food) are called...

a)

Collar cells

b)

Flagella

c)

Osculum

d)

Pores

14.

Structure C is a

a)

choanocyte

b)

amoeboid cell

c)

spicule

d)

pinacocyte

15.

Sponges are primarily sessile organisms. What does this mean?

a)

They live permanently in one palce

b)

They move around their whole life

16.
Choanocytes are also known as _____.
a)
epithelial cells
b)
amoeboid cells
c)
collar cells
d)
pore cells
17.

What moves water through the sponge?

a)

Collar cell

b)

Flagella

c)

Porocyte

d)

Amebocyte

18.

Which of the following type of cell digests and distributes food for the sponge?

a)

Choanocytes

b)

Amoebocytes

c)

Endodermal cells

d)

Epidermal cells

19.

_________________ are specialized buds made to survive harsh weather.

a)

Spicules

b)

Plankton

c)

Flagella

d)

Gemmules

20.

Which of the following terms defines how sponges can regrow lost body parts?

a)

Budding

b)

Symmetry

c)

Choanocytes

d)

Regeneration

21.
Which part of the sponge body is the central cavity that leads to the osculum?
a)
Ostia
b)
Mesenchyme
c)
Spongocoel
d)
Osculum
22.
Asexual sponge reproduction where a piece of the adult sponge breaks off and settles in a new area growing to adulthood.
a)
broadcast spawning
b)
branching
c)
budding
d)
forcast spawning
23.
What type of symmetry do sponges (Porifera) have?
a)
asymmetrical
b)
radial
c)
bilateral 
d)
both radial and asymmetrical
24.
What do organisms from the phylum Porifera eat?
a)
small marine fish
b)
plankton,bacteria, and detritus
c)
choanocytes
d)
krabby patties
25.
A flexible, fibrous material that can make up the skeleton of a sponge?
a)
spicule
b)
spongin
c)
grass sponge
d)
spongocoel
26.
What type of sponge does the following diagram belong?
a)
Leuconoid sponge
b)
Syconoid sponge
c)
Asconoid sponge
d)
Sponge Bob type
27.

What type of sponge would have the most complex makeup with multiple branched tunnels?

a)

Asconoid

b)

Syconoid

c)

Lueconoid

d)

Radionoid

28.

What are the two modes of asexual reproduction observed in a sponge?

a)

binary fission

b)

budding

c)

regeneration

d)

sexual reproduction

29.

Sponges feed by filtering _____________ out of the water column as it passes through the spongocoel.

a)

small fish

b)

oxygen

c)

macro algae

d)

plankton

30.

Which of the following is NOT what a sponge skeleton can be made of?

a)

Spongin

b)

Calcium carbonate

c)

Sodium chloride

d)

Silica

31.

How much water does a sponge need to filter to recieve one ounce of food?

a)

1 ounce

b)

1 liter

c)

1 gallon

d)

1 ton

32.
cells that create spicules, absorb nutrients and oxygen, and can transform into other cell types
a)
amoebocyte
b)
porocyte
c)
pinacocyte
d)
ostiocyte
33.
flattened cells on the outer surface of a sponge that create a 'skin' layer.
a)
amoebocyte
b)
ostiocyte
c)
pinacocyte
d)
choanocyte
34.
skeleton structures made of silica or calcium carbonate 
a)
spicules
b)
spongin
c)
sessile
d)
something
35.
most complex sponge body form with many chambers and canals and can have multiple osculum.
a)

asconoid

b)

syconoid

c)

leuconoid

d)

calcarea

36.

simplest sponge body form with the choanocytes found in the spongocoel; small and tube-shaped

a)

asconoid

b)

syconoid

c)

leuconoid

d)

calcarea

37.
The cilia of a choanocyte    
a)
regulates the diameter of the osculum
b)
filters food from the water
c)
creates currents in the water 
d)
secretes digestive enzymes
38.

Structure F is a

a)

choanocyte

b)

amoebocyte

c)

spicule

d)

pinacocyte

39.

Structure G is a

a)

choanocyte

b)

amoebocyte

c)

spicule

d)

pinacocyte

40.

Structure A is a

a)

choanocyte

b)

mesohyl

c)

spicule

d)

pinacocyte

41.

Structure D is a

a)

ostia

b)

mesohyl

c)

spicule

d)

pinacocyte

42.

Structure E is a

a)

ostia

b)

mesohyl

c)

spicule

d)

pinacocyte

43.

The choanocytes lie in canals that empty into the spongocoel

a)

asconoid

b)

syconoid

c)

leuconoid

d)

calcarea

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