Biological Molecules Class 11 Notes, MCQs, Short Questions

1 Sucrose is also called as ____

2 The branch of biology which deals with the study of chemical processes in the body is called:

3 The chemical compounds of living organisms are called:

4 The pH of water is:

5 The basic element of organic molecules is:

6 The compounds are formed by the release of water molecules, the process is called:

7 The process in which polymers are broken down into simpler molecules is called:

8 Carbon is an element:

9 The bond which is formed by the loss or gain of electrons is called:

10 The bond which is formed by the mutual sharing of electrons is called:

11 The groups which replace the hydrogen atom of a compound are called:

12 The bond which is formed between an acid and alcohol by condensation is called:

13 The bond which is formed between an acid and amine group is called:

14 Proteins are composed of:

15 The name protein was suggested by:

16 The amino acids are linked together by a bond, called:

17 A polypeptide chain having straight arrangement of amino acids is called:

18 A polypeptide chain having spirally coiled arrangement of amino acids is called:

19 A polypeptide chain having three dimensional structure and shows folded structure is called:

20 When two or more polypeptide chains are linked together into large-sized molecule, it is called:

21 Hemoglobin is a type of protein:

22 The carbohydrates which can not be further changed into more simpler forms are called:

23 The carbohydrates which are composed of two to ten sugar molecules are called:

24 In skin, hairs, nails and muscles the compounds are present:

25 Sucrose, maltose and lactose are the examples of:

26 Starch, glycogen and cellulose are the examples of:

27 Glucose and fructose are:

28 Milk sugar is known as:

29 The sweetest sugar is called:

30 Galactose, glucose and fructose are:

31 Ribose is a:

32 The animal starch is known as:

33 Cellulose is present in:

34 RNA takes part in:

35 DNA is present in the:

36 RNA is attached to the:

37 Uracil is present in:

38 The term lipid was proposed by:

39 Fats, oils, waxes and terpenoids are the compounds:

40 The group of lipids based only on isoprenoid unit is called:

41 The group of lipids which produce special fragrance and may be used in perfumes, are called:

42 The lipids which consist of four rings, attached together with 17 carbon atoms are called:

43 The cholesterol, sex hormones are included in:

44 Fats and oils are included in:

45 Solid fats are included in:

46 Oils are included in:

47 The animal fat is called:

48 The group of pigmented compounds producing different colors is called:

49 Nucleic acid is isolated from the nuclei of puss cells for the first time by:

50 The basic unit of nucleic acid is:

51 ATP, the energy rich compound is considered as:

52 The hereditary material is considered as:

53 The carrier of information is known as:

Biological Molecules

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