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Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24) - NEET MCQ


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10 Questions MCQ Test Daily Test for NEET Preparation - Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24)

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Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24) - Question 1

Ester linkages occur in

Detailed Solution for Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24) - Question 1

Lipids are actually triglycerides. A triglyceride consists of glycerol and fatty acids which are held together by ester linkages.

Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24) - Question 2

Which of the following carbohydrates is not a disaccharide?

Detailed Solution for Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24) - Question 2

Galactose is a monosaccharide. When combined with glucose (monosaccharide), through a condensation reaction, the result is the disaccharide lactose. The hydrolysis of lactose to glucose and galactose is catalyzed by the enzymes lactase and β-galactosidase.
Chemical formula: C6H12O6
Solubility in water: 650 g/L (20 °C)

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Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24) - Question 3

The most common monomer of carbohydrates is

Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24) - Question 4

Fehling’s solution is used for the detection of

Detailed Solution for Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24) - Question 4

Fehling's solution is used to determine whether a carbonyl-containing compound is an aldehyde or a ketone. Fehling's test can be used as a generic test for monosaccharides. Fehling's can be used to screen for glucose in urine, thus detecting diabetes.

Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24) - Question 5

Which is a reducing sugar?

Detailed Solution for Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24) - Question 5

Maltose has a free aldehyde group which can be oxidized to the acidic groups. Hence, maltose is a reducing sugar. Starch and Cellulose are polysaccharides.
They are comprised of multiple units of glucose linked together. The glucose in starch and cellulose does not contain a free aldehyde group and hence, starch and cellulose do not act as reducing sugars.
Similarly, sucrose is a disaccharide in which the aldehyde group of glucose is used up in forming a bond between glucose and fructose.
Hence, sucrose is also not a reducing sugar.

Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24) - Question 6

Nitrogen is a component of

Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24) - Question 7

Metabolic intermediates found in living system which are essential for growth and life is called___________

Detailed Solution for Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24) - Question 7

Primary metabolites are the essential metabolic intermediates of the plants which help in the growth and development of the plant.

Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24) - Question 8

The most abundant component of a cell is

Detailed Solution for Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24) - Question 8

The Molecular Composition of CellsCells are composed of water, inorganic ions, and carbon-containing (organic) molecules. Water is the most abundant molecule in cells, accounting for 70% or more of total cell mass.

Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24) - Question 9

Joining of repeating units to form a macromolecule is called

Test: Primary and Secondary Metabolites and Chemical Composition of Biomolecules (May 24) - Question 10

Which of the following does a protein yield on hydrolysis?

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