MCQ on Importance of Hydrogen Bonds in Biology




MCQ on Significance of Hydrogen Bonds. Hydrogen bonds are crucial in various aspects of chemistry and biology. They stabilize protein and DNA structures, facilitating life’s essential processes. In water, they contribute to its unique properties. In molecules like DNA, they enable genetic information storage and transfer, underpinning life’s molecular machinery.

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1. 
A hydrogen bond is a weak chemical bond that occurs between:

2. 
In biological systems, hydrogen bonds are commonly formed between hydrogen and which three elements?

3. 
Hydrogen bonding is a significant force in maintaining the three-dimensional structure of:

4. 
Which of the following is NOT a property of hydrogen bonds?

5. 
The DNA double helix is stabilized primarily by:

6. 
The unique properties of water, such as high heat capacity and cohesion, are mainly due to:

7. 
In DNA and RNA, complementary base pairing is possible due to hydrogen bonding between:

8. 
Which of the following is a biological macromolecule that contains extensive hydrogen bonding and provides structural support to cells?

9. 
The secondary structure of proteins, such as alpha-helices and beta-sheets, is stabilized by hydrogen bonding between:

10. 
Enzyme-substrate interactions often involve hydrogen bonding between the enzyme's active site and:

11. 
Hydrogen bonding plays a crucial role in the folding and stability of RNA and its ability to catalyze reactions. Such RNA molecules are called:

12. 
The specific recognition of antigens by antibodies in the immune system relies on hydrogen bonding between the antibody and:

13. 
Hydrogen bonds are crucial in the function of hemoglobin and myoglobin in transporting and storing oxygen. Which metal ion is found in the heme group of these proteins?

14. 
The high surface tension of water, which allows some insects to walk on its surface, is due to the strong cohesion resulting from:

15. 
Hydrogen bonds are involved in the formation of the lipid bilayer in cell membranes. Which part of the phospholipid is involved in hydrogen bonding?

Related posts:

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  2. MCQ on Water, pH and Buffer Systems (Part-1)
  3. MCQ on Water (Part-2)
  4. Physical and Chemical Properties of Water and its Biological Significance
  5. MCQ on Cellulose Biosynthesis in Plants

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Related posts:

  1. MCQ on Water, pH and Buffer Systems (Part-3)
  2. MCQ on Water, pH and Buffer Systems (Part-1)
  3. MCQ on Water (Part-2)
  4. Physical and Chemical Properties of Water and its Biological Significance
  5. MCQ on Cellulose Biosynthesis in Plants

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