- Keneitsino Lydia
- March 25, 2026
Boost Your Chemistry Score with Starch Cellulose Glycogen MCQs with Answers: Proven Success Guide
Understanding biomolecules is a crucial part of Class 12 chemistry, especially when preparing for competitive exams like NEET, JEE, and CUET. Among these biomolecules, polysaccharides such as starch, cellulose, and glycogen play a significant role. Practicing Starch Cellulose Glycogen MCQs with Answers helps aspirants strengthen their conceptual clarity and improve problem-solving skills effectively.
Polysaccharides are long chains of monosaccharide units linked by glycosidic bonds. The three most important examples—starch, cellulose, and glycogen—have similar molecular formulas but differ in structure and function. By solving Starch Cellulose Glycogen MCQs with Answers, aspirants can clearly understand these structural differences and their biological importance.
Starch is the primary storage carbohydrate in plants. It consists of two components: amylose and amylopectin. Amylose is a linear polymer of glucose units, while amylopectin is branched. Practicing Starch Cellulose Glycogen MCQs with Answers helps students remember that starch contains α-1,4 and α-1,6 glycosidic linkages, which are essential for its digestibility.
Cellulose, on the other hand, is a structural component of plant cell walls. Unlike starch, cellulose contains β-1,4 glycosidic bonds, making it indigestible for humans. This distinction is frequently tested in exams, and solving Starch Cellulose Glycogen MCQs with Answers ensures aspirants can easily differentiate between digestible and non-digestible carbohydrates.
Glycogen is the storage carbohydrate in animals and is often referred to as animal starch. It is highly branched compared to starch, allowing rapid release of glucose when needed. By practicing Starch Cellulose Glycogen MCQs with Answers, aspirants can quickly identify glycogen as the most branched polysaccharide among the three.
One of the most common exam concepts is the difference in glycosidic linkages. Starch and glycogen have α-linkages, while cellulose has β-linkages. This small structural variation leads to major functional differences. Regular practice of Starch Cellulose Glycogen MCQs with Answers helps reinforce this key concept.
Another important topic is the biological function of these polysaccharides. Starch stores energy in plants, glycogen stores energy in animals, and cellulose provides structural support. Understanding these roles becomes easier when aspirants repeatedly solve Starch Cellulose Glycogen MCQs with Answers during revision.
The digestibility factor is also crucial. Humans can digest starch and glycogen but not cellulose due to the absence of enzymes that break β-linkages. Questions based on this concept are very common, and practicing Starch Cellulose Glycogen MCQs with Answers helps avoid confusion during exams.
Aspirants should also focus on structural differences such as branching. Glycogen has more frequent branching than amylopectin, making it more compact and efficient for energy storage. Solving Starch Cellulose Glycogen MCQs with Answers allows learners to easily compare these structural variations.
In addition, understanding the sources of these polysaccharides is essential. Starch is found in potatoes and grains, cellulose in plant fibers, and glycogen in liver and muscles. These factual details are often asked directly, and Starch Cellulose Glycogen MCQs with Answers provide excellent practice for such questions.
Exam-oriented preparation requires repeated revision and application of concepts. Instead of just reading theory, practicing Starch Cellulose Glycogen MCQs with Answers ensures that aspirants can apply their knowledge in different scenarios. This approach significantly improves accuracy and confidence.
Moreover, these topics are not only important for board exams but also for competitive exams where conceptual clarity is tested deeply. Regularly solving Starch Cellulose Glycogen MCQs with Answers helps aspirants develop analytical thinking and better retention.
Time management is another advantage. By practicing Starch Cellulose Glycogen MCQs with Answers, aspirants become familiar with question patterns and can solve them quickly during exams. This is especially helpful in time-bound tests like NEET and JEE.
Another benefit of practicing Starch Cellulose Glycogen MCQs with Answers is identifying weak areas. Aspirants can focus more on topics they find difficult, such as glycosidic linkages or structural differences, and improve gradually.
Consistency is key to mastering chemistry. Daily practice of Starch Cellulose Glycogen MCQs with Answers ensures continuous revision and strengthens memory over time. This habit can make a significant difference in exam performance.
Starch cellulose Glycogen MCQs with Answers:
1
The products X and Y in the reaction are:
X←HIGlucose→HNO3YX \xleftarrow{HI} Glucose \xrightarrow{HNO_3} Y
A. n-hexane, Gluconic acid
B. Gluconic acid, Saccharic acid
C. n-hexane, Saccharic acid
D. None of these
Answer: C
2
Sucrose on hydrolysis gives:
A. D-(+)-Glucose and D-(-)-Fructose
B. L-(-)-Glucose and D-(+)-Fructose
C. D-(-)-Glucose and D-(+)-Fructose
D. D-(+)-Glucose and D-(+)-Fructose
Answer: A
3
Glucose does not react with:
A. NH₂OH
B. HCN
C. Br₂/Water
D. NaHSO₃
Answer: D
4
Which sweetener can be used at cooking temperature without calories?
A. Sucrose
B. Glucose
C. Fructose
D. Sucralose
Answer: D
5
Glucose reacts with bromine water to give:
A. Acetic acid
B. Saccharic acid
C. Glyceraldehyde
D. Gluconic acid
Answer: D
6
Hydrolysis of sucrose yields:
A. 1:1 Glucose and Fructose
B. 1:2 Glucose and Fructose
C. 1:1 inverted forms
D. 1:2 inverted forms
Answer: A
7
Glucose + ______ → Sucrose (related sugar unit)
A. Glucose
B. Fructose
C. Arabinose
D. Lactose
Answer: B
8
Sucralose is:
A. Hexachloro derivative
B. Trichloro derivative
C. Pentachloro derivative
D. Tetrachloro derivative
Answer: B
9
Hydrolysis of starch (C6H10O5)n(C_6H_{10}O_5)_n gives:
A. Fructose
B. Glucose
C. Lactose
D. Maltose
Answer: B
10
Molisch reagent contains:
A. α-naphthol in alcohol
B. β-naphthol
C. Resorcinol
D. Ranasiline
Answer: A
11
Monosaccharides are:
A. Glucose and Maltose
B. Glucose and Sucrose
C. Glucose and Ribose
D. None
Answer: C
12
Indigestible carbohydrate in diet:
A. Maltose
B. Cellulose
C. Starch
D. Galactose
Answer: B
13
Non-reducing sugar found in honey:
A. Glucose
B. Fructose
C. Maltose
D. Melizitose
Answer: A
14
Glycosidic linkage in sucrose is:
A. α 1:4
B. α 1:6
C. Both
D. α 1:2
Answer: D
15
Formula of starch:
A. (C6H12O6)n(C_6H_{12}O_6)_n
B. (C6H10O5)n(C_6H_{10}O_5)_n
C. C12H22O11C_{12}H_{22}O_{11}
D. (C6H12O4)n(C_6H_{12}O_4)_n
Answer: B
16
Glucose and fructose show:
A. Functional isomerism
B. Rotamers
C. Position isomerism
D. Geometrical isomerism
Answer: A
17
Straight chain of glucose is proved by:
A. Heating with HI
B. Reaction with Br₂
C. Reaction with NH₂OH
D. Reaction with HCN
Answer: A
18
Linkage in lactose:
A. C1 glucose–C4 galactose
B. C1 galactose–C4 glucose
C. C1 glucose–C6 galactose
D. C1 galactose–C6 glucose
Answer: B
19
CO₂ released from 1 mole glucose fermentation:
A. 2
B. 3
C. 4
D. 1
Answer: A
20
in solution mainly exists in which cyclic form?
A. Pyranose
B. Furanose
C. Open chain
D. Lactone
Answer: B
21
Maltose contains which glycosidic linkage?
A. α(1→4)
B. β(1→4)
C. α(1→2)
D. β(1→2)
Answer: A
22
Fructose is:
A. Aldohexose
B. Ketohexose
C. Pyranose
D. Heptose
Answer: B
23
Enzymes A and B are:
A. Invertase and Zymase
B. Zymase and Invertase
C. Invertase and Amylase
D. Amylase and Invertase
Answer: A
24
Why does glucose fail to give Schiff’s test?
A. No aldehyde group present
B. Exists mainly in cyclic form
C. Highly reactive
D. Insoluble
Answer: B
25
Accumulated during exercise:
A. Glycogen
B. Glucose
C. Pyruvic acid
D. Lactic acid
Answer: D
26
Assertion (A): Glucose does not give 2,4-DNP test.
Reason (R): Glucose exists mainly in cyclic hemiacetal form.
A. Both A and R are correct and R is the correct explanation
B. Both A and R are correct but not explanation
C. A is correct but R is incorrect
D. Both A and R are incorrect
Answer: A
27
Assertion (A): Sucralose contains glycosidic linkage between C₁ of glucose and C₂ of fructose.
Reason (R): Sucralose is a chlorinated derivative of sucrose.
A. Both A and R are correct and R is correct explanation
B. Both A and R are correct but R is not explanation
C. A is correct but R is incorrect
D. Both A and R are incorrect
Answer: B
28
Assertion (A): β-D-glucose has higher stability than α-D-glucose.
Reason (R): All bulky groups in β-form are in equatorial position.
A. Both A and R are correct and R explains A
B. Both A and R are correct but R is not explanation
C. A is correct but R is incorrect
D. Both A and R are incorrect
Answer: A
29
Assertion (A): Oxidation of glucose with bromine water gives gluconic acid.
Reason (R): Bromine water oxidizes only aldehyde group.
A. Both A and R are correct and R explains A
B. Both A and R are correct but not explanation
C. A is correct but R is incorrect
D. Both A and R are incorrect
Answer: A
30
Assertion (A): Maltose is a reducing sugar.
Reason (R): It contains a free aldehyde group in one glucose unit.
A. Both A and R are correct and R explains A
B. Both A and R are correct but not explanation
C. A is correct but R is incorrect
D. Both A and R are incorrect
Answer: A
Conclusion on Starch Cellulose Glycogen MCQs with Answers
In conclusion, polysaccharides like starch, cellulose, and glycogen are fundamental topics in organic chemistry. A strong understanding of their structure, function, and differences is essential for scoring well. Practicing Starch Cellulose Glycogen MCQs with Answers regularly is one of the most effective ways to achieve this. It not only enhances conceptual clarity but also boosts confidence and accuracy in exams.