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Bioenergetics MCQs – Under Update for the 2025 Syllabus (Coming Soon)
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Biological Molecules KPK Book Lines Part-1

Type Your Name

1 / 88

Nitrogenous bases in DNA are positioned:

2 / 88

DNA contain ____________ polynucleotide strand

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The oxygen end of a water molecule carries a partial negative charge mainly because oxygen is:

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Optical isomers have different

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Lipoproteins are present in:

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water molecule attaches with another water molecule due to

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RNA acts mainly as:

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Addition of a second phosphate to AMP produces:

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glycolipid are formed by the combination of

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which one contain one glycerol molecule, two fatty acids and one phosphoric acid molecule

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fibrous proteins are 

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Number of peptide bonds in Hemoglobin are

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Polysaccharides are polymers formed by the condensation of which units?

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DNA strands are held together by:

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Chitin is best associated with:

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Protein synthesis requires information transfer in how many steps?

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Adenine + ribose (pentose sugar) forms:

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________ is the common storage parts in plants

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In capillary rise inside a thin tube, water rises mainly due to:

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________ carries messages from the DNA to the ribosome for protein synthesis

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a protein molecule may be a

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The covalent bond formed between two monosaccharide units is known as:

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Which is NOT a DNA nitrogenous base?

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Proteins that perform catalytic functions are known as:

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Which sequence correctly describes what happens in a lake as temperature falls from 10°C to 0°C?

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The main storage polysaccharide in plants is:

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The proportions of chemical compounds in a cell can vary based on:

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A carbohydrate that yields exactly 3 monosaccharide units on hydrolysis is called a:

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the chemical analysis of protoplasm shows that it is composed up of how many type of compounds

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Proteins contain the elements:

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Water ionizes to produce ions. This is useful in cells because ions:

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Nucleoproteins are usually:

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DNA is composed of how many types of nucleotides?

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a nucleotide is composed of  ________ components

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our body can only use

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Carbon, hydrogen, nitrogen, oxygen, phosphorus and sulphur are collectively known as:

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glucose is an example of

38 / 88

Which of the following best describes the role of water in a hydrolysis reaction?

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The structural proteins of muscles responsible for contraction are:

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At 0°C, ice floats on water because ice has:

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AMP is best described as:

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In plants, proteins are stored mainly in:

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glucose is

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Which molecule contains carbohydrate chains attached to proteins?

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The body of plants is made of ----- elements

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Chemical analysis of the living content of a cell (protoplasm) categorizes its components into:

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most of fatty acids in a cell contain ___________carbon atom per molecule

48 / 88

lipoprotein are formed by the combination of

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carbon, hydrogen and oxygen constitute about ______ of human body by weight

50 / 88

Which of the following is a globular protein?

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Nucleoproteins are formed by combining proteins with:

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Which situation is the best example of cohesion?

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Glycoproteins are an integral component of:

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Formation of a triglyceride from glycerol and fatty acids is a:

55 / 88

To break a dipeptide back into two amino acids, the reaction must consume:

56 / 88

The biological significance of protein diversity arises from:

57 / 88

Proteins that act as antibodies belong to which functional class?

58 / 88

In winter, lakes freeze from the top rather than from the bottom mainly because:

59 / 88

Which of the following defines condensation?

60 / 88

a code is the sequence of

61 / 88

Sucrose is composed of which two monosaccharides?

62 / 88

a ________ is the unit of hereditary in a living organism.

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Which organizational level serves as the primary building block for all material things in the universe?

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Aldehydic Group has a formula

65 / 88

triglycerides are stored in

66 / 88

protoplasm cannot survive if its water content is reduced as low as

67 / 88

in nails, muscle cells and bones ________ is present

68 / 88

amino acids are _________ having amino group

69 / 88

Which of the following are NOT considered organic macromolecules?

70 / 88

acylglycerol are lipids which are composed of 

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Which set contains only disaccharides?

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ATP differs from ADP by the presence of:

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In triglyceride formation, the reacting parts are mainly:

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If a polymer chain consists of 'n' monomers, how many water molecules are typically produced during its formation via condensation?

75 / 88

a code is a sequence of how many nitrogenous bases

76 / 88

which one is single ring compound

77 / 88

Both condensation reactions and hydrolysis reactions in cells commonly require the presence of:

78 / 88

each steroid is formed of a backbone of four fused carbon rings containing ________ carbon atoms

79 / 88

a triglycerids molecule is  converted into phospholipid when a fatty acid is replaced by 

80 / 88

Determination of the amino acid sequence in insulin was first achieved by:

81 / 88

which one yield as twice as energy per gram as that of carbohydrate

82 / 88

A carbohydrate that yields 6 monosaccharide units on complete hydrolysis is classified as:

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Ghee with saturated fatty acid is prepared from vegetable oil by passing ________ through it

84 / 88

Besides C, H and O, some lipids may also contain:

85 / 88

Sweating cools the human body mainly because water:

86 / 88

Cellulose is primarily a:

87 / 88

Which statement about branching is most accurate?

88 / 88

a phospholipid molecule has how many parts

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