What Are the Main Types and Functions of Biomolecules?
The Biomolecules MCQ page presents 20 exam-level multiple-choice questions designed for NEET Chemistry preparation. Practice with detailed answer keys, boost accuracy, and master all NEET-important subtopics like carbohydrates, proteins, nucleic acids, and lipids. Use this topic-specific MCQ test to benchmark your readiness for NEET and enhance your Chemistry scores systematically.
What are MCQs for Biomolecules?
MCQs for Biomolecules cover fundamental properties, structure, and functions of life’s essential molecules: carbohydrates, proteins, lipids, and nucleic acids. Questions are crafted as single correct types, testing key concepts, definitions, and processes vital for NEET Chemistry. Practicing these prepares students for topic-specific accuracy and NEET-standard questions on biomolecular chemistry.
Why Practice NEET Biomolecules MCQs?
Regular NEET Biomolecules MCQ practice builds exam confidence and sharpens concept recall. These questions mirror real NEET exam trends and difficulty. Practicing MCQs improves speed, accuracy, and highlights weaker subtopics for revision. Attempting diverse question formats helps students handle high-yield, frequently asked Biomolecules MCQs in actual exams.
Biomolecules MCQ Practice Questions (NEET Pattern)
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Which of the following is a non-reducing disaccharide?
A. Sucrose
B. Maltose
C. Lactose
D. Cellobiose
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DNA differs from RNA by:
A. Being single-stranded
B. Having thymine instead of uracil
C. Presence of ribose sugar
D. Its location only in cytoplasm
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Which functional group is characteristic of amino acids?
A. Carboxyl and amino
B. Ketone and aldehyde
C. Ester and ether
D. Amide and nitrile
-
Which vitamin is water-soluble?
A. Vitamin D
B. Vitamin E
C. Vitamin B12
D. Vitamin K
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The basic structural unit of proteins is:
A. Glucose
B. Nucleotide
C. Amino acid
D. Fatty acid
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Which is a polysaccharide?
A. Sucrose
B. Glycogen
C. Ribose
D. Fructose
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Which class of biomolecules serve mainly as information storage?
A. Proteins
B. Nucleic acids
C. Lipids
D. Vitamins
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Which lipid is essential for cell membrane structure?
A. Wax
B. Sterol
C. Phospholipid
D. Triglyceride
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Peptide bonds are formed between:
A. Two fat molecules
B. Two glucose residues
C. Two amino acids
D. Two nucleotides
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The nitrogenous base not present in RNA is:
A. Uracil
B. Thymine
C. Adenine
D. Guanine
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Which pair is both reducing sugars?
A. Glucose and maltose
B. Sucrose and glucose
C. Sucrose and starch
D. Lactose and sucrose
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Enzymes are chemically:
A. Fats
B. Proteins
C. Carbohydrates
D. Nucleic acids
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The main monosaccharide found in blood is:
A. Fructose
B. Galactose
C. Glucose
D. Ribose
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Which structural polysaccharide is found in plant cell walls?
A. Glycogen
B. Chitin
C. Cellulose
D. Starch
-
Which vitamin prevents scurvy?
A. Vitamin A
B. Vitamin B1
C. Vitamin C
D. Vitamin D
-
Nucleoside is composed of:
A. Base + sugar
B. Base + phosphate
C. Sugar + phosphate
D. Base + sugar + phosphate
-
Hydrolysis of lactose yields:
A. Glucose only
B. Glucose + galactose
C. Glucose + fructose
D. Glucose + sucrose
-
Which one is not a lipid?
A. Cholesterol
B. Lecithin
C. Glycogen
D. Triglyceride
-
The main function of insulin is to:
A. Increase blood glucose
B. Decrease blood glucose
C. Stimulate lipolysis
D. Transport oxygen
-
Alpha helix and beta sheet are types of:
A. Primary structure
B. Secondary structure
C. Tertiary structure
D. Quaternary structure
MCQ Answer Key
| Q.No. | Answer | Explanation |
|---|---|---|
| 1 | A | Sucrose has no free anomeric carbon, so is non-reducing. |
| 2 | B | DNA has thymine; RNA has uracil instead. |
| 3 | A | Amino acids contain both carboxyl and amino groups. |
| 4 | C | Vitamin B12 is water-soluble; others are fat-soluble. |
| 5 | C | Amino acids are protein monomers. |
| 6 | B | Glycogen is a highly branched polysaccharide. |
| 7 | B | Nucleic acids (DNA/RNA) store genetic information. |
| 8 | C | Phospholipids form main plasma membrane component. |
| 9 | C | Peptide bond joins amino acids in proteins. |
| 10 | B | RNA lacks thymine, contains uracil instead. |
| 11 | A | Both glucose and maltose have free anomeric carbons. |
| 12 | B | Enzymes are mostly proteins in nature. |
| 13 | C | Glucose is the main blood monosaccharide ("blood sugar"). |
| 14 | C | Cellulose provides rigidity to plant cell walls. |
| 15 | C | Vitamin C prevents scurvy (collagen formation). |
| 16 | A | A nucleoside has only base and sugar. |
| 17 | B | Lactose hydrolyzes into glucose and galactose. |
| 18 | C | Glycogen is a carbohydrate, not a lipid. |
| 19 | B | Insulin lowers blood glucose by promoting uptake. |
| 20 | B | Alpha helix and beta sheet are secondary protein structures. |
Explanations clarify reasoning behind each answer and help students understand important NEET concepts.
How These MCQs Help in NEET
Practicing Biomolecules MCQs prepares students for high-scoring NEET questions. This chapter crosses both Chemistry and Biology. Solving exam-style questions develops critical concepts and reduces mistakes. For complete NEET mastery, access more practice with Vedantu Chemistry chapterwise tests and try previous year NEET Chemistry papers for exam simulation.
Exam Tips & Next Steps for NEET Biomolecules Preparation
- Revise definitions and classification tables for Biomolecules MCQ accuracy.
- Practice full-length tests at Vedantu NEET Chemistry mock tests to improve speed.
- Review NEET Biomolecules notes and important questions for focused revision.
- To strengthen Biology-Chemistry integration, also solve NEET Biology MCQ tests.
Targeted Biomolecules MCQ practice boosts NEET Chemistry scores, helps identify weak points, and trains speed and accuracy. Regular topicwise revision using Vedantu’s solved answers and explanations ensures deeper concept mastery and increased chances of securing a higher NEET rank.
FAQs on Biomolecules Mcq for Students: Practice with Answers
1. What are the most essential MCQs for Biomolecules in NEET?
The most essential Biomolecules MCQs for NEET focus on key concepts such as carbohydrates, proteins, nucleic acids, and lipids. These questions often cover:
- Identification and classification of biomolecules
- Structure and function of carbohydrates, proteins, and nucleic acids
- Enzyme action and specificity
- Distinguishing features of DNA vs RNA
- NEET-level application and reasoning MCQs
2. Where can I get topicwise Biomolecules MCQ PDFs with answers?
You can find topicwise Biomolecules MCQ PDFs with answers on trusted NEET preparation platforms, official exam prep books, and educational websites. Look for resources that include:
- Chapterwise NEET Chemistry MCQs
- Detailed answer keys and solutions
- High-yield Class 11 and 12 Chemistry topics
- Practice questions designed as per latest NEET exam trends
3. Are these Biomolecules questions at NEET exam level?
Yes, these Biomolecules MCQs are crafted to match the difficulty, format, and real exam patterns of NEET Chemistry. Features include:
- Single correct answer MCQs
- Questions covering Class 11 and 12 Biomolecules syllabus
- Blend of fact-based and application-based questions
- Time-bound practice to simulate actual NEET conditions
4. How can I access instant Biomolecules answer keys online?
You can access instant Biomolecules answer keys online by attempting chapterwise MCQ tests on exam prep platforms. The benefits include:
- Immediate marking of correct and incorrect responses
- Detailed explanations for each answer
- Performance analytics for improved learning
- Helps with quick revision before NEET exam
5. What are the four main types of biomolecules important for NEET Chemistry?
The four main types of biomolecules essential for NEET Chemistry are:
- Carbohydrates
- Proteins
- Lipids
- Nucleic acids (DNA and RNA)
6. What are biomolecules STD 12 notes?
Biomolecules STD 12 notes are class 12 Chemistry revision materials focusing on structure, properties, and biological roles of carbohydrates, proteins, nucleic acids, and lipids. These notes typically provide:
- Short definitions and classification
- Key chemical reactions and structures
- Summary tables and diagrams
- Important NEET/board exam MCQs
7. What are the 4 biomolecules answer key?
The answer key for the 4 main classes of biomolecules includes:
- Carbohydrates: Sugars, starch, glycogen
- Lipids: Fats, oils, steroids
- Proteins: Enzymes, antibodies, hormones
- Nucleic acids: DNA, RNA
8. How does this Biomolecules MCQ test help identify my Chemistry weak areas?
A Biomolecules MCQ test instantly highlights your strengths and weaknesses by:
- Showing topic-wise score breakdown after submission
- Pinpointing incorrect answers and subtopics needing revision
- Providing detailed solutions for concept clarity
- Helping you focus on high-yield NEET Chemistry modules
9. Is there a specific NEET exam pattern for Biomolecules MCQs?
Yes, NEET typically asks single correct answer MCQs from Biomolecules, featuring both direct and application-based questions. Key features are:
- Mostly Class 11 Chemistry syllabus context
- Questions on classification, structure, and function
- Time-bound and negative marking system
- Difficulty matched to NEET standards
10. How often should I repeat Biomolecules mock tests for better retention?
Regularly repeating Biomolecules mock tests improves memory and exam performance. Best practice recommends:
- Taking a chapterwise test every 7–10 days
- Reviewing mistakes and reading explanations
- Gradually increasing speed and accuracy with each attempt
- Tracking progress using online test analytics
