Ch. 6: Sponges; Phylum Porifera Flashcards by Michaela Decoste

Q

Are sponges triploblastic or diploblastic?

A

Diploblastic

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Simplest sponge type?

A

Asconoid

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Medium-complexity sponge

A

Syconoid

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Most complex sponge

A

Leuconoid

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What is the innermost layer of the sponge?

A

Choanocytes

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Choanocytes

A

has flagellum

Aid in digestion and reproduction

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Archaeocytes

A

Aids in digestion and reproduction

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Sclerocytes

A

Secrete spicules

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Pinacocytes

A

T-shaped epithelial cells

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Porocytes

A

Water flow regulation

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Mesoglea

A

A matrix for cells

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

How do they perform asexual reproduction?

A

By fragmentation and budding
or
By Gemmula (seeds; archaeocytes)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

How do they perform sexual reproduction?

A

They are hermaphrodites;

sperm derives from choanocytes
oocytes from archeaocytes

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Class Calcarea

A

3-ray calcarean spicules

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Class Hexactinellidae

A

Glassy sponges with 6-ray siliceous spicules

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Class Demospongiae

A

Skeleton of siliceous spicules