MCQs Biology F.Sc. Part 2 ( 2nd Year )
Chapter No.16
Support and Movements
Total MCQs = 165
21. Exoskeleton in Diatoms is made up of:
(A) Protein
(B) CaCO3
(C) Silica
(D) Chitin
Answer:
(C) Silica
22. Molluscs have an exoskeleton in the form of:
(A) Proteinceous shell
(B) Siliceous shell
(C) Calcareous shell
(D) Chitineous shell
Answer:
(C) Calcareous shell
23. The periodic shedding of exoskeleton in arthropods is known as:
(A) Moulting
(B) ecdysis
(C) Both (A) and (B)
(D) Stridulation
Answer:
(C) Both (A) and (B)
24. What is the total body weight of human skeleton?
(A) 80%
(B) 70%
(C) 40%
(D) 18%
Answer:
(D) 18%
25. The tooth bearing bone of lower jaw is:
(A) Atlas
(B) Innominate
(C) Incus
(D) Dentary
Answer:
(D) Dentary
26. An adult human endoskeleton consists of
(A) 363 bones
(B) 639 bones
(C) 206 bones
(D) Number varies by the individual
Answer:
(C) 206 bones
27. The lower two pairs of ribs are:
(A) True ribs
(B) False ribs
(C) Floating ribs
(D) All (A) (B) and (C)
Answer:
(C) Floating ribs
28. Total number of ribs in your axial skeleton is
(A) 12
(B) 24
(C) 33
(D) 26
Answer:
(B) 24
29. The original number of vertebrae in human vertebral column is:
(A) 12
(B) 24
(C) 33
(D) 26
Answer:
(C) 33
30. The visible number of vertebrae in human vertebral column is:
(A) 12
(B) 24
(C) 33
(D) 26
Answer:
(D) 26
