Biology Biological Molecules Online Mcqs Test

Iqra RaniLast Updated: October 14, 2025

Important Biology Biological Molecules Question and Answer

Total Questions: 50
Time Allowed: 25 Minutes
Total Marks: 50
How to Attempt Test: Please choose the right Option in MCQ-type question.
Test Helpful For: Biology Test
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Biology Biological Molecules Practice Test Online With Explanation

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Medical Subject

1. Life of an organism depends upon the ceaseless chemical activities in its ?

2. Photosynthesis, respiration, digestion and muscle contraction can all be described in ?

3. Water has great ability of absorbing heat with minimum of change in its own ?

4. Water is affective lubricant that provides protection against damage resulting from ?

5. Covalent bond stores large amount of ?

6. A branch of Biology which deals with the study of chemical components and chemical processes in living organisms is known as ?

7. Water also forms a fluid cushion around organs that helps to protect them from ?

8. In amino acids the peptide bond is formed by the combination of carbon with ?

9. Carbon is the basic element of ?

10. Almost all the reactions of a cell occur in the presence of ?

11. Water works as temperature stabilizer for organisms in the environment and hence protects living material against sudden ?

12. Milk,sugar,starches,paper, and root tubers are example of ?

13. Evaporation of only two ml out of one litre of water, lowers the temperature of the remaining 998 ml by ?

14. When a carbon atom combines with four atoms or radicals the four bonds are arranged symmetrically in a ?

15. The survival of an organism depends upon its ability to take some chemicals from its environment and use them to make chemicals of its own ?

16. In different organisms the amount of water varies from ?

17. The specific heat of vaporization of water is 574 Kcal/Kg which plays an important role in the regulation heat produced ?

18. At 25 the concentration of each of H and OH ions in pure water about ?

A=10 <sup>-7 </sup> mole/liter

 B=10 <sup>-16 </sup>mole/liter

C=10 <sup>-6 </sup>mole/liter

D=10 <sup>-17 </sup>

19. All living things are made of certain chemical compounds, which are generally classified us ?

20. C-C bonds form a skeleton of ?

21. Those reactions in which simpler substances are combined together to form complex substances are called ?

22. A basic knowledge of Biochemistry is essential for understanding ?

23. Human tissues contain about 20% water in bone cells and 85% in ?

24. Large organic molecules such as cellulose, fats proteins are also known as ?

25. All the chemical reaction taking place within a cell are collectively called ?


 

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Iqra RaniLast Updated: October 14, 2025

Iqra Rani

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51 Comments

  12. Hey there just wanted to give you a quick heads up. The text in your post seem to be running off the screen in Internet explorer. I’m not sure if this is a format issue or something to do with internet browser compatibility but I figured I’d post to let you know. The design and style look great though! Hope you get the issue fixed soon. Thanks

    Reply

  13. Terrific post however , I was wanting to know if you could write a litte more on this topic? I’d be very grateful if you could elaborate a little bit more. Appreciate it!

    Reply

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