All India Institute of Medical Sciences 2008 - Question Paper

Q. 32. What is common ranging from parrot, platypus and kangaroo?
a. Ovoparity
b. Homoiothermy
c. Toothless jaws
d. Functional post -anal tail
Sol. Only birds & mammals are homoiothermous. accurate choice: (2)
Q. 33. What is actual about Nereis, Scorpion, Cockroach and Silver fish?
a. They all belong to the identical phylum
b. They all have jointed paired appendages
c. They all possess dorsal heart
d. None of them is aquatic
Sol. accurate choice: (3)
Q. 34. Which 1 of the subsequent statement is correct?
a. Ontogeny repeats phylogeny
b. Stem cells are specialized cells
c. There is no evidence of the existence of gills during embryogenesis of mammals
d. All plant and animal cells are totipotent.
Sol. accurate choice: (1)
Q. 35. “Foolish Seedling” disease of rice led to the discovery of:
a. IAA
b. GA
c. ABA
d. 2, four – D
Sol. Foolish seeding disease (Bakane disease) of rice is due to a fungus Giberella fujikuroi. Yabuta and Sumuki found achemical from the fungus and called gibbrellic acid. accurate choice: (2)
Q. 36. Passage cells are thin- walled cells obtained in:
a. central region of style through which the pollen tube grows towards the ovary.
b. endodermis of roots facilitating rapid transport of water from cortex to pericycle.
c. phloem elements that serve as entry points for substances for transport to other plant parts.
d. testa of seed to enable emergence of growing embryonic axis during seed germination.
Sol. Passage cells also called transfusion tissue are obtained in the endodermis meant for rapid transport of water from cortex to pericycle. accurate choice: (2)
Q. 37. The 1st acceptor of electrons from an excited chlorophyll molecule of photosystem II is:
a. Quinone
b. Cytochrome
c. Iron-sulphur protein
d. Ferredoxin.
Sol. The 1st acceptor of electros from an excited chlorophyll is quinone. accurate choice: (1)
Q. 38. All enzymes of TCA cycle are located in the mitochondrial matrix other than 1 which is located in inner mitochondrial membranes in eukaryotes and in cytosol in prokaryotes. This enzyme is:
a. succinate dehydrogenase
b. lactate dehydrogenase
c. isocitrate dehydrogenase
d. malate dehydrogenase
Sol. Succinate dehydrogenase is a common enzyme for TCA and ETC. It is located on inner mitochondrial membrane. Rest of the TCA enzymes are current in mitochondrial matrix. accurate choice: (1)

Earning:   Approval pending.