Biology - Chemical Building Blocks of Life
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This is MCQs of Biology
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Question 1 of 30
1. Question
Which statement is correct for biomolecules?
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Question 2 of 30
2. Question
Carbohydrates, lipids and proteins are formed from their basic building blocks by:
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Question 3 of 30
3. Question
The most immediate source of energy for living cells is generally in the form of:
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Question 4 of 30
4. Question
Which of the following functions is more characteristic of carbohydrates than of proteins?
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Question 5 of 30
5. Question
Which one is hexose sugar?
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Question 6 of 30
6. Question
Maltose, Lactose and sucrose are:
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Question 7 of 30
7. Question
Glycogen is most structurally similar to:
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Question 8 of 30
8. Question
Which of the following is produced only by plants?
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Question 9 of 30
9. Question
Chitin is found in:
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Question 10 of 30
10. Question
Chitin is a structural polysaccharide and is polymerized from:
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Question 11 of 30
11. Question
Chitin is chemically a polymer of:
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Question 12 of 30
12. Question
Which one of the following is an example of glycoprotein?
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Question 13 of 30
13. Question
The feature that most ditinguishes a lipid from a carbohydrate is that a lipid has:
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Question 14 of 30
14. Question
The amphiphilic lipids of a cell membrane are called:
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Question 15 of 30
15. Question
A saturated fat is one to which no more ___________ atoms can be added:
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Question 16 of 30
16. Question
Among the energy values of nutrients, 9.3 calories is that of:
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Question 17 of 30
17. Question
Lipids are generally:
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Question 18 of 30
18. Question
Amino acids are joined by a unique type of bond called a/an:
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Question 19 of 30
19. Question
A peptide bond is formed between two amino acids by the reaction of the _________ of one amino acid with the _______ of the other:
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Question 20 of 30
20. Question
The basis of life is:
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Question 21 of 30
21. Question
Which statement is correct?
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Question 22 of 30
22. Question
Nucleoside is:
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Question 23 of 30
23. Question
Nucleotides are:
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Question 24 of 30
24. Question
Nucleotides include:
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Question 25 of 30
25. Question
A denatured protein or DNA molecule has lost its:
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Question 26 of 30
26. Question
RNA differs from DNA in having:
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Question 27 of 30
27. Question
Predominant form of lipid present in biomembrances:
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Question 28 of 30
28. Question
__________ are to proteins as _________ are to nucleic acids:
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Question 29 of 30
29. Question
The arrangement of a polypeptide into a fibrous or globular shape is called its:
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Question 30 of 30
30. Question
The sequence of amino acids in a protein molecule is dictated by the:
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