Useful for Medical Entrance Exams: AIPMT / AFMC /JIPMER / AIIMS / JIPMER /Manipal UGET / CMC Vellore / AMU/ BHU

AIPMT Biology Previous Questions and Answers

11. Which one of the following is correct statement (AIPMT, 2012)
a) Antheridiophores and archegoniophores are present in pteridophytes
b) Origin of seed habit can be traced in pteridophytes
c) Pteridophyte gametophyte has a protonemal and leafy stage
d) In gymnosperm female gametophyte is free living

12. Which one of the following does not differ in E.coli and Chlamydomonas
a) Cell wall b) Cell membrane c) Ribosomes d) Chromosomal Organization
 AIPMT TEST
13. Removal of introns and joining of exons in a defined order during transcription is called
a) Slicing b) Splicing c) Looping d) Inducing

14. Best defined function of manganese in green plants is
a) Nitrogen fixation b) Water absorption c) Photolysis of water d) Calvin cycle

15. Which one of the following is wrong statement
a) Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins
b) Nitrosomonas and Nitrobacter are chemoautotrophs
c) Anabaena and Nostoc are capable of fixing nitrogen in free- living state also
d) Root nodule forming nitrogen fixers live as aerobes under free living conditions

16. The correct sequence of cell organelles during photorespiration is
a) Chloroplast, mitochondria, peroxisome
b) Chloroplast, - vacuole - peroxisome
c) Chloroplast, - Golgiboidies - mitochondria
d) Chloroplast, Rough Endoplasmic reticulum- Dictyosomes

17. Which one of the following is correctly matched
a) Chlamydomonas - Conidia b) yeast - Zoospores c) Onion - Bulb d) Ginger - Sucker

18. Which one of the following is a wrong statement
a) Greenhouse effect is a natural Phenomenon
b) Eutrophication is a natural phenomenon in freshwater bodies
c) Most of the forests have been lost in tropical areas
d) Ozone in upper part of atmosphere is harmful to animals

19. Yeast is used in the production of
a) Bread and beer b) Cheese and butter c) Citric acid and lactic acid d) Lipase and pectinase

20. Consumption of which one of the following foods can prevent the kind of blindness associated with vitamin 'A' deficiency
a) golden rice b) Bt- Brinjal c) Flaver Savr Tomato d) Canolla

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Answers:
11. b) Origin of seed habit can be traced in pteridophytes
12. b) Cell membrane
13. b) Splicing
14. c) Photolysis of water
15. a) Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins
16. a) Chloroplast, mitochondria, peroxisome
17. c) Onion - Bulb
18. d) Ozone in upper part of atmosphere is harmful to animals
19. a) Bread and beer
20.a) golden rice

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