NEET Biology MCQ on Diploblastic, Triploblastic organization and Coelom with Answers by Expert Teacher. Every Questions of Diploblastic Triploblastic organization and Coelom is Important and Common for NEET-UG Exam.
1.) In which of the following, two germ layers gastrula is present?
a) Unicotellic
b) Triplontic
c) Haplontic
d) Diploblastic
2.) Which of the following is absent in Diploblastic organisms?
a)Ectoderm
b) Endoderm
c) Mesoderm
d) All of them
3.) How many layers are there in a triploblastic organisms?
a)One
b) Two
c) Three
d) Four
4.) In which of the following organism triploblastic germ layer is present?
a) Velamen
b) Ctenoplana
c) Sponges
d) Mammals
5.) Find the correct sentence.
a) Coelom is present in Arthropods.
b) Body develops from six layers.
c) Coelom is absent in Mollusks.
d) Between ectoderm and endoderm, cellular gelatinous mesoglea is present.
6.) Which of the following type of coelom has no coelom?
a) Pseudocoelomate
b) Acoelomate
c) Coelomate
d) All of them
7.) In the Pseudocoelomate animals, blastocoel is filled:
a) Equally
b) Empty
c) Partly
d) Fully
Answers:
1.)
Solution:d) Diploblastic
Diploblastic organisms are those organisms which contain two germ layers.
2.)
Solution:c) Mesoderm
Diploblastic organisms have two germ layers of gastrula where one is ectoderm and another is endoderm.
3.)
Solution: c) Three
Two germ layered gastrula is there in diploblastic organisms. On the other hand, three germ layered gastrula is present in the triploblastic organisms.
4.)
Solution:d) Mammals
Organisms like Sponges, Coelenterates, Ctenoplana and Velamen contain diploblastic germ layer. On the other side, Organisms like Flatworms and Mammals are triploblastic animals.
5.)
Solution: a) Coelom is present in Arthropods.
‘Coelom is present in Arthropods’ is a right answer because coelom is present in annelids, arthropods, and molluscs. Between endoderm and ectoderm, non-cellular type of mesoglea is present. And, three layers help in the body development.
6.)
Solution:b) Acoelomate
If the coelom is absent in the animals then they are known as Acoelomate. Acoelomate is a type of coelom which has no coelom.
7.)
Solution:c) Partly
In the Pseudocoelomate animals. Blastocoel is filled with mesodermal cell. It is filled partly.