Questions for 5-July Zoology

Instructions
·        All questions are compulsory.
·        Adhere to world limits wherever specified.
·        Draw neat and well labelled diagrams. No beautification required.
·        Don’t use colour pens only pencil colour if you are an extraordinary student.
·        Try to finish all questions within 2 hours in written.
·        Answers will be reviewed every day at 9 pm.

Q:-1 Answer the following in about 150 words each: 10X4= 40
  1. Comment on the status of onychophora.
  2. Discuss the Ultra structure of Endoplasmic reticulum. How SER is Different from RER in functional aspects and why?
  3. Describe the endoskeleton and Coelom in Balanoglossus.
  4. Discuss the importance of Lysosomes. What are the medical implications of Dysfunctional lysosome.
Q:-2 Comment on the Paripatus' s affinities with other phyla. Add a short note on its
Morphology.(15)

Q:-3 Discuss the ERGIC. Explain the various theories of Golgi maturation. (15)

Q:-4 What do you mean by Ribozymes? Discuss various types of ribosomes. (10)

Q:-5 Describe silent features of phylum Hemichordata. Classify the phylum upto classes giving their characteristics and suitable
examples. (20)

Comments

Post a Comment

More On Blog

CANAL SYSTEM IN Porifera

Image
Canal system in Porifera (sponges) Body of all sponges is the perforated by large number of apertures through which water enters Inside body and flows through a system of criss-crossing canals collectively forming the canal system which is a characteristic feature of poriferans. Following types of canal systems are found in sponges: Ascon type, with flagellated spongocoel Sycon type, with flagellated radial canals Leucon type, with flagellated chambers Rhagon type, with conical shape and broad base ASCON TYPE This is the simplest type of canal system and is found in  Leucosolenia  and other homocoela. Ostia are present on the surface of body and lead directly into the spongocoel, which is lined by flagellated choanocyte cells. Spongocoel opens to the outside through a narrow circular opening, the  osculum  located at the distal free end of the sponge body. Water enters through ostia into spongocoel and goes out of body through the  osculum . SYCO...
Read more