Old Question Papers Of AIPMT

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AIPMT Mains 2012 Biology Question Paper
How many organisms in the list given below are autotrophs ?
Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Sacharomyces,
Trypanosoma, Porphyra, Wolfia
(1) Four (2) Five (3) Six (4) Three
Sol. Nostoc, chara, porphyra and wolfia are Photoautotrophs while nitrosomonas and nitrobacter are
Chemoautotrophs
Ans. (3)
Read the following five statements (A - E) and answer as asked next to them.
(A) In Equisetum the female gametophyte is retained on the parent sporophyte.
(B) In Ginkgo male gametophyte is not independent.
(C) The sporophyte in Riccia is more developed than that in Polytrichum.
(D) Sexual reproduction in Volvox is isogamous.
(E) The spores of slime molds lack cell walls.
How many of the above statements are correct ?
(1) Two (2) Three (3) Four (4) One
Sol. Equisetum - Pteridophytes - Free living gametophyte - Prothallus
Riccia - It is liverwort in which simplest sporophyte consists of capsule only while polytrichum is moss in
which sporophyte consists of of foot seta & capsule.
Volvox - oogamy is present
Slime moulds - Spores bear cell wall.
Ans. (4)
Which one of the following pairs is wrongly matched ?
(1)Ginkgo - Archegonia
(2)Salvinia - Prothallus
(3) Viroids - RNA
(4) Mustard - Synergids
Ans. (2)

In the five-kingdom classification, Chlamydomonas and Chlorella have been included in :
(1) Protista (2) Algae (3) Plantae (4) Monera
Sol. Chlamydomonas & chlorella have been mentioned in algae in kingdom protista
Ans. (1)

For its activity, carboxypeptidase requires :
(1) Zinc (2) Iron (3) Niacin (4) Copper
Sol. Zinc is a cofactor for carboxypeptidases
Ans. (1)

Which one of the following structures is an organelle within an organelle ?
(1) Ribosome (2) Peroxisome (3) ER (4) Mesosome
Sol. Ribosome is present is some cell organelles like mitochondria
Ans. (1)

Which one of the following is a wrong statement regarding mutations ?
(1) Deletion and insertion of base pairs cause frame-shift mutations
(2) Cancer cells commonly show chromosomal aberrations
(3) UV and Gamma rays are mutagens
(4) Change in a single base pair of DNA does not cause mutation]
Sol. Change in single base pair of DNA is also a type of mutations called point mutations
Ans. (4)

AIPMT Mains 2012 Biology Question Paper







AIPMT Entrance Exam Question Paper 2014