Phylum Mollusca

Q.

Which of the following are a matching set of phylum and its three examples?

1. Cnidaria - Bonellia, Physalia, Aurelia

2. Platyhelminthes - Planaria, Schistosoma, Enterobius

3. Mollusca - Loligo, Teredo, Octopus

4. Porifera - Spongilla, Euplectella, Pennatula

Q. Answer the following:

Q. Tusk shell is the common name of

1. Chiton
2. Dentalium
3. Aplysia
4. Sepia

Q. What is radula?

Q. A common chamber for all the canals of a sponge is$/$cavity present in all sponges is

1. Incurrent canal
2. Paragastric cavity
3. Excurrent canal
4. Radial chamber

Q.

The second largest phylum in Animal Kingdom is ___________

1. Arthropoda

2. Mollusca

3. Annelida

4. Cnidaria

Q. How many amino acid molecules form a molecule of haemocyanin (hemocyanin), a blood pigment of snails?

1. 68
2. 72
3. 4500
4. 3400

Q.

Tube feet is the locomotory organ in:

1. Star fish

2. Jelly fish

3. Sliver fish

4. Cuttle fish

Q. Radula is present in

1. Loligo
2. Mytilus
3. Pila
4. Unio

Q.

Select the wrong statement among the following given statements.

1. Pila has radula and univalved shell

2. Clitellum is seen in earthworm

3. Cuttlefish and devil fish are true fishes

4. Bivalves are mostly used in commercial pearl production

Q. Which one of the following is a matching set of phylum and its three examples?

1. Cnidaria - Bonellia, Physalia, Aurelia
2. Platyhelminthes - Planaria, Ascaris, Taenia
3. Mollusca - Loligo, Teredo, Octopus
4. Porifera - Spongilla, Euplectella, Pennatula

Q. Which one genus, it's two characters and phylum are not correctly matched, whereas the remaining three are correct

1. Pila- Body segmented
   Mollusca- mouth with radula
   
2. Asterias- Spiny skinned
   Echinodermata- water vascular system
   
3. Sycon- Pore bearing
   Porifera - Canal system
   
4. Periplaneta-Jointed appendages
   Arthropoda- chitinous exoskeleton
   

Q. Match the column
phylum characteristics
1.Mollusca a) Trunk
2. Hemichordata b) mantel
3. ponifera c) Tentacles bearing
4. Coelenterata d) collar cells
5. Cyclostomata e) Tunie
6. Urochordata f) Sucker

Q. Sea mouse is a marine molluscs. It's scientific name is

1. Aphrodita
2. Teredo
3. Unio
4. Nautilus

Q. Which of the following animals belongs to the phylum mollusca?

1. Dog fish
2. Devil fish
3. Silver fish
4. Jelly fish

Q. In which of the following haemocyanin pigment is found?

1. Annelids
2. Echinodermata
3. Insecta
4. Lower invertebrates

Q. Haemocyanin, the blue colouring pigment of molluscan blood contain

1. Magnesium
2. Copper
3. Iron
4. Manganese

Q. Pila has a

1. Trachea
2. Gill
3. Pulmonary sac
4. Both A and B
   

Q. To which group does giant squid belongs to

1. Mollusca
2. Arthropoda
3. Annelida
4. Reptilia

Q.

Match the the following structures in molluscs to their respective fucntions_____

Column I Column II

1). Radula a). Blood pigment.

2). Mantle layer b). Mastigation.

3). Foot c). Secretion of shell.

4). Haemocyanin d). Locomotion.

1. 1) ⇒b, 2)⇒c, 3)⇒d, 4)⇒a.

2. 1) ⇒a, 2)⇒b, 3)⇒c, 4)⇒d.

3. 1) ⇒c, 2)⇒a, 3)⇒d, 4)⇒b.

4. 1) ⇒c, 2)⇒b, 3)⇒d, 4)⇒a.

Q. Connecting link between phylum Annelida and Mollusca is?

1. Nautilus
2. Peripatus
3. Neopilina
4. Chiton

Q. Which one is an incorrect match?

1. Silver Fish - Arthropoda
2. Cuttle Fish - Mollusca
3. Shell Fish - Pisces
4. Star Fish - Echinodermata

Q. Molluscs have been a source of

1. Plants
2. Pearls
3. Fish
4. Both A and B

Q. 1 In porifera, the water is taken in through _____________ and given out through _____________
2 Animals attached to substratum are called _____________ animals.
3 In conclenterates _____________ are useful and on capturing the prey whereas _________ inject the tax in body of prey.
4 Body of annelid an animal is long cylindrical and ____________ segmented.
5 __________ second largest phylum in animal kingdom.
6 Endoskeleton of cyclostomata animals is __________
7 Body cavity between the body and internal organs is called __________

Q. Which one belongs to Mollusca?

1. Dog fish
2. Devil fish
3. Silver fish
4. Jelly fish

Q. Internal segmentation is present in molluscs belonging to class

1. Monoplacophora
2. Polyplacophora
3. Gastropoda
4. Scaphopoda

Q. Osphradium of Pila/molluscs is

1. Photoreceptor
2. Phonoreceptor
3. Tangoreceptor
4. Chemoreceptor

Q. Osphradium is meant for

1. Excretion
2. Nutrition
3. Selection and rejection of food
4. Grinding of food

Q. A triploblastic animal with bilateral symmetry in larval stage but asymmetry in adult is

1. Arachnid
2. Echinoderm
3. Gastropod
4. Bivalve

Q. .......... shows a unique feature of performing dual functions in case of molluscs.

1. Gills
2. Shell
3. None of the above
4. Fins