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Breathing and Exchange of Gases
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Breathing and Exchange of Gases
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25 Questions

1. Air is breathed through [1994]
2. A stage in cell division is shown inthe figure. Select the answer which givescorrect identification of the stage withits characteristics. [NEET 2013]
3. The quantity 1500 ml in therespiratory volumes of a normal humanadult refers to [1996]
4. Which one of the following is apossibility for most of us in regard tobreathing - by making a conscious effort?[2011M]
5. During the metaphase stage ofmitosisspindlefibresattachtochromosomes at [NEET Kar. 2013]
6. Skin is an accessory organ ofrespiration in
7. The process of migration of chlorideions from plasma to RBC and ofcarbonate ions from RBC to plasma is[1999]
8. When CO2 concentration in bloodincreases - breathing becomes [2004]
9. How many mitotic divisions areneeded for a single cell to make 128cells? [1997]
10. During cell division in apicalmeristem the nuclear membrane appearsin [1997]
11. Although much CO2 is carried inblood - yet blood does not become acidic - because [1995]
12. Oxygendissociationcurveofhaemoglobin is [1994]
13. If you are provided with root-tips ofonion in your class and are asked tocount the chromosomes - which of thefollowingstagescanyoumostconveniently look into? [2004]
14. Child death may occur in themarriage between
15. During cell division - the spindlefibres attach to the chromosome at aregion called [2000]
16. At what stage of the cell cycle arehistone proteins synthesized in aeukaryotic cell? [2005]
17. Best material for the studymitosis in laboratory is [2002]
18. Which stages of cell division do thefollowing figures A and B representrespectively? Fig. A Fig. B [2010]
19. A bacterium divides every 35minutes. If a culture containing 105cells per ml is grown for 175 minutes - what will be the cell concentration perml after 175 minutes? [1998]
20. Select the correct option withrespect to mitosis. [2011]
21. Intercostal muscles occur in [1988]
22. Mitoticanaphasediffersfrommetaphase in possessing [1991]
23. Lampbrush chromosomesduring [1996]
24. Which one of the following is one ofthe paths followed by air/O2 duringrespiration in an adult male Periplanetaamericana as it enters the animal body?[NEET Kar. 2013]
25. Number of chromatids at metaphaseis [1992]