NEET (UG) 2026–27
PYQ-Style Practice — Volume 2
Biology • Chemistry • Physics | Original recurring-concept practice
Note: These are original questions inspired by recurring NEET concepts, not copied previous-year questions.
,Practice Set 1 — Biology
1. A plant cell placed in a hypertonic solution shows:
A. endosmosis B. plasmolysis C. deplasmolysis D. cell division
2. Crossing over occurs mainly during:
A. leptotene B. zygotene C. pachytene D. diplotene
3. The enzyme that begins protein digestion in the stomach is:
A. amylase B. pepsin C. trypsin D. lipase
4. The pacemaker of the human heart is:
A. AV node B. SA node C. Purkinje fibres D. bundle of His
5. A codon is located on:
A. DNA only B. mRNA C. tRNA anticodon loop D. ribosomal protein
6. The pyramid of energy in an ecosystem is:
A. always inverted B. always upright C. always horizontal D. absent in aquatic systems
7. ADH primarily increases:
A. glucose breakdown B. water reabsorption C. bile secretion D. red-cell production
8. Natural selection directly acts on:
A. phenotypes B. DNA bases only C. ecosystem size D. taxonomic names
9. The end product of glycolysis is:
A. acetyl-CoA B. pyruvate C. lactate only D. oxaloacetate
10. Vaccination primarily aims to generate:
A. immediate digestion B. immunological memory C. high blood pressure D. oxygen transport
,Answer Key & Concept Notes — Set 1
Q Ans Concept note
1 B Water leaves the cell, causing the protoplast to shrink away from the cell wall.
2 C Crossing over between homologous chromosomes occurs during pachytene of prophase I.
3 B Pepsin is activated from pepsinogen in the acidic stomach.
4 B The sinoatrial node initiates the normal heartbeat.
5 B A codon is a three-base sequence on mRNA.
6 B Energy decreases at successive trophic levels.
7 B ADH increases water reabsorption, especially in collecting ducts.
8 A Selection acts on observable phenotypic variation.
9 B Glucose is converted into pyruvate during glycolysis.
10 B Vaccines stimulate adaptive immunity and memory.
, Practice Set 2 — Biology
1. A plant cell placed in a hypertonic solution shows:
A. endosmosis B. plasmolysis C. deplasmolysis D. cell division
2. Crossing over occurs mainly during:
A. leptotene B. zygotene C. pachytene D. diplotene
3. The enzyme that begins protein digestion in the stomach is:
A. amylase B. pepsin C. trypsin D. lipase
4. The pacemaker of the human heart is:
A. AV node B. SA node C. Purkinje fibres D. bundle of His
5. A codon is located on:
A. DNA only B. mRNA C. tRNA anticodon loop D. ribosomal protein
6. The pyramid of energy in an ecosystem is:
A. always inverted B. always upright C. always horizontal D. absent in aquatic systems
7. ADH primarily increases:
A. glucose breakdown B. water reabsorption C. bile secretion D. red-cell production
8. Natural selection directly acts on:
A. phenotypes B. DNA bases only C. ecosystem size D. taxonomic names
9. The end product of glycolysis is:
A. acetyl-CoA B. pyruvate C. lactate only D. oxaloacetate
10. Vaccination primarily aims to generate:
A. immediate digestion B. immunological memory C. high blood pressure D. oxygen transport
PYQ-Style Practice — Volume 2
Biology • Chemistry • Physics | Original recurring-concept practice
Note: These are original questions inspired by recurring NEET concepts, not copied previous-year questions.
,Practice Set 1 — Biology
1. A plant cell placed in a hypertonic solution shows:
A. endosmosis B. plasmolysis C. deplasmolysis D. cell division
2. Crossing over occurs mainly during:
A. leptotene B. zygotene C. pachytene D. diplotene
3. The enzyme that begins protein digestion in the stomach is:
A. amylase B. pepsin C. trypsin D. lipase
4. The pacemaker of the human heart is:
A. AV node B. SA node C. Purkinje fibres D. bundle of His
5. A codon is located on:
A. DNA only B. mRNA C. tRNA anticodon loop D. ribosomal protein
6. The pyramid of energy in an ecosystem is:
A. always inverted B. always upright C. always horizontal D. absent in aquatic systems
7. ADH primarily increases:
A. glucose breakdown B. water reabsorption C. bile secretion D. red-cell production
8. Natural selection directly acts on:
A. phenotypes B. DNA bases only C. ecosystem size D. taxonomic names
9. The end product of glycolysis is:
A. acetyl-CoA B. pyruvate C. lactate only D. oxaloacetate
10. Vaccination primarily aims to generate:
A. immediate digestion B. immunological memory C. high blood pressure D. oxygen transport
,Answer Key & Concept Notes — Set 1
Q Ans Concept note
1 B Water leaves the cell, causing the protoplast to shrink away from the cell wall.
2 C Crossing over between homologous chromosomes occurs during pachytene of prophase I.
3 B Pepsin is activated from pepsinogen in the acidic stomach.
4 B The sinoatrial node initiates the normal heartbeat.
5 B A codon is a three-base sequence on mRNA.
6 B Energy decreases at successive trophic levels.
7 B ADH increases water reabsorption, especially in collecting ducts.
8 A Selection acts on observable phenotypic variation.
9 B Glucose is converted into pyruvate during glycolysis.
10 B Vaccines stimulate adaptive immunity and memory.
, Practice Set 2 — Biology
1. A plant cell placed in a hypertonic solution shows:
A. endosmosis B. plasmolysis C. deplasmolysis D. cell division
2. Crossing over occurs mainly during:
A. leptotene B. zygotene C. pachytene D. diplotene
3. The enzyme that begins protein digestion in the stomach is:
A. amylase B. pepsin C. trypsin D. lipase
4. The pacemaker of the human heart is:
A. AV node B. SA node C. Purkinje fibres D. bundle of His
5. A codon is located on:
A. DNA only B. mRNA C. tRNA anticodon loop D. ribosomal protein
6. The pyramid of energy in an ecosystem is:
A. always inverted B. always upright C. always horizontal D. absent in aquatic systems
7. ADH primarily increases:
A. glucose breakdown B. water reabsorption C. bile secretion D. red-cell production
8. Natural selection directly acts on:
A. phenotypes B. DNA bases only C. ecosystem size D. taxonomic names
9. The end product of glycolysis is:
A. acetyl-CoA B. pyruvate C. lactate only D. oxaloacetate
10. Vaccination primarily aims to generate:
A. immediate digestion B. immunological memory C. high blood pressure D. oxygen transport
