It is said that elemental composition of living organisms and that of inanimate objects (like earth’s crust) are similar in the sense that all the major elements are present in both. Then what would be the difference between these two groups? Choose a correct answer from among the following.
1. | Living organisms have more gold in them than inanimate objects |
2. | Living organisms have more water in their body than inanimate objects |
3. | Living organisms have more carbon, oxygen and hydrogen per unit mass than inanimate objects |
4. | Living organisms have more calcium in them than inanimate objects |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMany elements are found in living organisms either free or in the form of compounds. One of the following is not found in living organisms.
1. Silicon
2. Magnesium
3. Iron
4. Sodium
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhen we homogenise any tissue in an acid, the acid-soluble pool represents
1. cytoplasm
2. cell membrane
3. nucleus
4. mitochondria
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe most abundant chemical in living organisms could be
1. protein
2. water
3. sugar
4. nucleic acid
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology