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

Kerala Medical Entrance Questions- 2009 (KEAM)

1. The haeme protein complexes, which act as oxidising agents are known as pqp
a) Haemoglobin  
b) myoglobin
c) chlorophyll
d) Cytochrome
2. The non-sister chromatids twist around and exchange segments with each other during
a) diplotene
b) pachytene
c) Zygotene
d) diakinensis
3. In C3 plants , the first stable compound formed after CO2 fixation is
a)  3-Phosphoglyceraldehyde
b) malic acid
c) oxaloacetic acid
d) ribulose 1,5 biphosphate
4.Which one of the following is an amide involved in nitrogen assimilation by plants?
a) Glutamate
b) Alanine
c) Asparagine
d) Serine
5. Cohesion theory of water movements in plants was put forth by
a) Melvin Calvin
b) Hans A Krebs
c) Henry Dixon
d)  Englemann
6. Which one of the following is wrongly matched
a) Fungi- Chitin
b) Phospholipids- plasma membrane
c) Enzyme- Lipopoly saccharide
d) antibody- glycoprotein
7.An example of non competition  inhibition is
a) the inhibition of succinic dehydrogenase by malonate
b) cyanide action of cyctochrome oxidase
c)  sulpha drug on folic acid synthesising bacteria
d)   reaction of succinic dehydroganse

8. The enzyme responsible for the reduction of molecular nitrogen to the level of ammonia in leguminous root nodule is
a) nitrogenase
b) carboxylase
c)  nitrite reductase
d) nitrate reductase
9.  The mineral involved in the photolysis of water are
i) manganese  iii) magnesium
ii) calcium  iv) chloride
a) i and ii only
b) i, ii and iv only
c) i and iv only
d) iii and iv only
10. The enzyme  responsible for primary carboxylation in C 3plants is
a)  hexokinase
b) succinic dehydrogenase
c)  RuBP carboxylase oxygenase
d)  PEP carboxylase
11. The RQ value of oxalic aid is
a) 1.0
b) 4
c) 1.5
d) 0.7
12.  Which one of the following is commonly found in temperate coniferous forest
a) Quercus
b)  Prosopis
c) Dipterocarpus
d)  Pinus wallichiana
13.  The shade tolerant plants are known as
a) psammophytes
b) halophytes
c) sciophytes
d) Heliophytes
14. The  response of different organisms to environmental rhythms of light and darkness is called
a) Photoperiodism
b) Phototaxis
c) Vernalization
d) Phototropism
15. The ripening of fruits can be fastened by treatment with 
a) Gibberellins
b) Ethylene
c) ABA
d) Cytokinin
Answers:
  1. d) Cytochrome
  2. b) pachytene
  3. a) 3-Phosphoglyceraldehyde
  4. c) Asparagine
  5. c) Henry Dixon
  6. c) Enzyme- Lipopoly saccharide
  7. b) cyanide action of cyctochrome oxidase
  8. a) nitrogenase
  9. b) i, ii and iv only
  10. c) RuBP carboxylase oxygenase
  11. b) 4
  12. d) Pinus wallichiana
  13. c) sciophytes
  14. a) Photoperiodism
  15. b) Ethylene
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