(Download) INJSO Olympiad Question Papers 2013

Question paper
Exam Name : INJSO Olympiad Question Papers 2013

Time: 3 H
Maximum Marks: 296

1. Which of the following ecosystems will exhibit maximum fixation of carbon averaged over a year through photosynthesis?
A. Farm ecosystem.
B. Ocean ecosystem.
C. Rainforest ecosystem.
D. Pond ecosystem.

2. The human blood pigment Haemoglobin has maximum affinity towards
A. NH₃
B. CO
C. CO₂
D. O₂

3. Which of the following is a common character shown by both bryophytes and pteridophytes?
A. Semi-parasitic gametophytic stage.
B. Presence of vascular tissues.
C. Independent gametophytic and sporophytic generations.
D. Water is essential for fertilization.

4. Consider the following ecological pyramids
I. Pyramid of numbers.
II. Pyramid of biomass.
III. Pyramid of energy.
The one(s) which is / are always upright are
A. I only.
B. II and III only.
C. III only.
D. I and II only.

5. Respiratory quotient (R.Q.) is defined as the ratio of volume of CO2 evolved to the volume of O2 taken in during the respiration process. Value of R.Q. depends on the nature of respiratory substrate and to the extent to which this substance is broken down into simpler products. Which of the following situation will give us the R.Q. value as infinity?
A. Fats used as substrate under aerobic conditions.
B. Organic acid is used as a substrate under aerobic conditions.
C. Any type of substrate used under anaerobic conditions.
D. Any type of substrate used under aerobic conditions.

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