Life Process Question and Answer MCQ

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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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