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It is said that elemental composition of...

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 the following.

A

Living organisms have more gold in them than inanimate objects

B

Living organisms have more water in their body than inanimate objects

C

Living organisms have more carbon, oxygen and hydrogen per unit mass than inanimate objects

D

Living organisms have more calcium in them than inanimate objects

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the differences in elemental composition between living organisms and inanimate objects, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Question**: The question states that both living organisms and inanimate objects (like the earth's crust) have similar elemental compositions, meaning they contain the same major elements. However, it asks what the differences are between these two groups. 2. **Identifying Major Elements**: The major elements typically found in both living organisms and inanimate objects include carbon (C), hydrogen (H), oxygen (O), nitrogen (N), phosphorus (P), sulfur (S), and others. 3. **Analyzing the Options**: - **Option A**: "Living organisms have more gold in them than inanimate objects." - Gold is not a major element in living organisms, so this option is incorrect. - **Option B**: "Living organisms have more water in their body than inanimate objects." - While living organisms contain a significant amount of water, the question focuses on major elements, not compounds. This option is misleading and thus incorrect. - **Option C**: "Living organisms have more carbon, oxygen, and hydrogen per unit mass than inanimate objects." - This option is likely correct. Living organisms have a higher percentage of these major elements compared to inanimate objects. - **Option D**: "Living organisms have more calcium in them than inanimate objects." - In fact, the earth's crust contains a higher percentage of calcium compared to living organisms, making this option incorrect. 4. **Conclusion**: Based on the analysis of the options, the correct answer is **Option C**: "Living organisms have more carbon, oxygen, and hydrogen per unit mass than inanimate objects."
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