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JEE • CHEMISTRY • BIOMOLECULES

Biomolecules practice · Medium

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Practice format and chapter quiz

These sets use single-correct-answer MCQs. They do not cover every JEE Main or JEE Advanced question format and are not full-length mock papers.

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Showing 151-159 of 159 questions
151 Medium
151 of 159
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A fatty acid with no double bond and high melting point are A saturated fatty acid is
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Correct option: A
Saturated in nature
Option A (Saturated in nature) is correct because fatty acids with no double bonds are saturated and tend to have higher melting points due to efficient packing.
152 Medium
152 of 159
Remembering +4 | -1
Gene is a segment of
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Correct option: A
DNA
Option A (DNA) is correct because a gene is a specific segment of DNA that codes for a particular protein or polypeptide.
153 Medium
153 of 159
Understanding +4 | -1
Glucose does not
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Correct option: C
Give Schiff’s test
Option C (Give Schiff’s test) is correct because glucose does not give Schiff's test due to the cyclic hemiacetal form being predominant.
154 Medium
154 of 159
Understanding +4 | -1
α−D(+)\alpha-D(+)-glucopyranose is an example of cyclic
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Correct option: C
Hemiacetal
Option C (Hemiacetal) is correct because the cyclic form of glucose is formed by the reaction of an aldehyde group with an alcohol group within the same molecule, resulting in a hemiacetal.
155 Medium
155 of 159
Understanding +4 | -1
Number of possible isomers of glucose is:
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Correct option: C
16
Option C (16) is correct because glucose has 4 chiral carbons, leading to 24=162^4 = 16 possible stereoisomers.
156 Medium
156 of 159
Understanding +4 | -1
Why polysaccharides are called non-sugars?
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Correct option: B
They do not taste sweet
Option B (They do not taste sweet) is correct because polysaccharides are complex carbohydrates that are not sweet, unlike monosaccharides and disaccharides.
157 Medium
157 of 159
Remembering +4 | -1
Extracellular fluid contains abundantly.
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Correct option: C
Na\mathrm{Na} metal
Option C (Na\mathrm{Na} metal) is correct because sodium is the most abundant cation in extracellular fluid, playing a crucial role in maintaining water balance.
158 Medium
158 of 159
Remembering +4 | -1
Enzymes take part in a reaction and
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Correct option: B
increase the rate of a chemical reaction
Option B (increase the rate of a chemical reaction) is correct because enzymes are biological catalysts that speed up chemical reactions.
159 Medium
159 of 159
Remembering +4 | -1
Enzymes are made up of
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Correct option: B
Proteins with specific structure.
Option B (Proteins with specific structure) is correct because enzymes are biological catalysts made of proteins with specific three-dimensional structures that determine their function.
Revision notes and key takeaways

Review BIOMOLECULES in your textbook or class notes, then use this set to check your understanding.

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