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Explain the terms primary and secondary structures of proteins. What is the difference between `alpha`-helix and `beta`-pleated sheet structure of proteins?

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ICSE-BIOMOLECULES-EXERCISE (PART-II) (DESCRIPTIVE QUESTIONS)(SHORT ANSWER QUESTIONS)
  1. Name the anomers of glucose. How do they differ and what is the chief ...

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  2. How are proteins related to amino acids ? Mention a difference between...

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  3. Explain the terms primary and secondary structures of proteins. What i...

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  4. What role do enzymes have in the functioning of our bodies?

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  5. What do you mean by a nucleotide ? Write two functions of DNA.

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  6. Name the chemical components which constitute nucleotides. Write any t...

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  7. Name the diseases caused due to the deficiency of vitamins A, E, B(12)...

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  8. Denaturation and renaturation of proteins

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  9. What changes occur in the nature of egg proteins on boiling?

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  10. State two main differences between globular and fibrous proteins.

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  11. Answer the following queries about proteins : (i) How are proteins r...

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  12. Name two water soluble vitamins , their sources and the diseases cause...

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  13. Name two fat soluble vitamins, their sources and the diseases caused d...

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  14. Name the four bases present in DNA. Which of one of these is not prese...

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  15. Name the two components of starch. How do they differ from each other ...

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  16. Define the following terms: (i) Coenzymes (ii) Nucleotides (iii...

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  17. Write the chemical equations for the reactions of glucose with (i) a...

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  18. Give the plausible explanation for the following: (i) Glucose doesn'...

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  19. Despite having an aldehydic group Draw the Haworth structure of a-D-...

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  20. Despite having an aldehydic group What is the significance of D and ...

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