Life Process Question and Answer MCQ
01 Gaseous exchange takes place within lungs from alveoli to blood capillaries takes by process called ..... 1. osmosis 2. diffusion 3. fitration 4. none of the above
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02 In exhaled air percentage of CO2 is ...... 1. 0.03% 2. 0.04% 3. 1% 4. 4%
03 Power house of cell is ........ 1. chloroplast 2. mitochondria 3. nucleus 4. ribosome
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04 Percentage of Oxygen in exhaled air is ....... 1. 16% 2. 20% 3. 21% 4. 79%
05 Ion present in chloroplast is ....... 1. magnesium 2. iron 3. manganese 4. chloride
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06 On doing strenuous exercise, blood sample shows more percent of ........ in blood 1. citric acid 2. lactic acid 3. acetic acid 4. oxygen
07 Reason for muscle fatigue is presence of ......... in blood 1. oxygen 2. carbondioxide 3. acetic acid 4. lactic acid
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