NEET (UG) 2026–27
Mixed MCQ Practice — Volume 1
Biology • Chemistry • Physics | Original NEET-style practice
Use: timed practice, error-log building and rapid revision. Questions are original practice items and are not reproduced
from NCERT or copyrighted question banks.
,How to Use This Volume
Attempt each set under exam-like conditions. Mark questions as Correct / Guess / Wrong. Revisit every Guess and
Wrong item using the explanation section.
Section Questions Suggested time
Biology Sets 1–10 200 80 min
Chemistry Sets 11–20 200 70 min
Physics Sets 21–30 200 80 min
Mixed Mock Sets 31–35 175 70 min each
,Practice Set 1 — Biology
Choose the single best answer.
1. Cell membrane is best described as:
A. a rigid protein sheet B. a selectively permeable lipid-protein structure C. a cellulose bilayer D. a nucleic-acid membrane
2. During mitosis, sister chromatids separate during:
A. prophase B. metaphase C. anaphase D. telophase
3. The primary site of aerobic ATP generation in eukaryotic cells is:
A. Golgi body B. mitochondrion C. lysosome D. ribosome
4. A competitive inhibitor generally:
A. binds irreversibly to enzyme B. competes with substrate at the active site C. destroys the enzyme D. always lowers Vmax
5. Xylem mainly transports:
A. food from leaves B. water and mineral ions C. hormones only D. oxygen
6. The oxygen released during photosynthesis comes primarily from:
A. CO2 B. glucose C. water D. chlorophyll
7. The hormone strongly associated with blood-glucose lowering is:
A. glucagon B. insulin C. adrenaline D. thyroxine
8. The functional unit of kidney is:
A. neuron B. alveolus C. nephron D. sarcomere
9. In Mendelian monohybrid inheritance, a heterozygote crossed with a recessive homozygote gives the expected
phenotypic ratio:
A. 3:1 B. 1:1 C. 1:2:1 D. 9:3:3:1
10. A population is best distinguished from a community because a population contains:
A. many species B. one species in a defined area C. only producers D. only consumers
, Answer Key & Explanations — Set 1
Q Ans Why
1 B The plasma membrane is a dynamic lipid-protein structure with selective permeability.
2 C Centromeres separate and sister chromatids move to opposite poles in anaphase.
3 B Mitochondria carry out the major stages of aerobic respiration and oxidative phosphorylation.
4 B Competitive inhibitors compete for the active site and their effect can often be overcome by increasing substrate concentration.
5 B Xylem conducts water and mineral ions, mainly upward from roots.
6 C Photolysis of water supplies electrons and releases O2 during the light reactions.
7 B Insulin promotes glucose uptake and storage, lowering blood glucose.
8 C The nephron is the structural and functional unit of the kidney.
9 B Aa × aa produces Aa and aa in equal expected proportions.
10 B A population consists of individuals of the same species occupying an area.
Mixed MCQ Practice — Volume 1
Biology • Chemistry • Physics | Original NEET-style practice
Use: timed practice, error-log building and rapid revision. Questions are original practice items and are not reproduced
from NCERT or copyrighted question banks.
,How to Use This Volume
Attempt each set under exam-like conditions. Mark questions as Correct / Guess / Wrong. Revisit every Guess and
Wrong item using the explanation section.
Section Questions Suggested time
Biology Sets 1–10 200 80 min
Chemistry Sets 11–20 200 70 min
Physics Sets 21–30 200 80 min
Mixed Mock Sets 31–35 175 70 min each
,Practice Set 1 — Biology
Choose the single best answer.
1. Cell membrane is best described as:
A. a rigid protein sheet B. a selectively permeable lipid-protein structure C. a cellulose bilayer D. a nucleic-acid membrane
2. During mitosis, sister chromatids separate during:
A. prophase B. metaphase C. anaphase D. telophase
3. The primary site of aerobic ATP generation in eukaryotic cells is:
A. Golgi body B. mitochondrion C. lysosome D. ribosome
4. A competitive inhibitor generally:
A. binds irreversibly to enzyme B. competes with substrate at the active site C. destroys the enzyme D. always lowers Vmax
5. Xylem mainly transports:
A. food from leaves B. water and mineral ions C. hormones only D. oxygen
6. The oxygen released during photosynthesis comes primarily from:
A. CO2 B. glucose C. water D. chlorophyll
7. The hormone strongly associated with blood-glucose lowering is:
A. glucagon B. insulin C. adrenaline D. thyroxine
8. The functional unit of kidney is:
A. neuron B. alveolus C. nephron D. sarcomere
9. In Mendelian monohybrid inheritance, a heterozygote crossed with a recessive homozygote gives the expected
phenotypic ratio:
A. 3:1 B. 1:1 C. 1:2:1 D. 9:3:3:1
10. A population is best distinguished from a community because a population contains:
A. many species B. one species in a defined area C. only producers D. only consumers
, Answer Key & Explanations — Set 1
Q Ans Why
1 B The plasma membrane is a dynamic lipid-protein structure with selective permeability.
2 C Centromeres separate and sister chromatids move to opposite poles in anaphase.
3 B Mitochondria carry out the major stages of aerobic respiration and oxidative phosphorylation.
4 B Competitive inhibitors compete for the active site and their effect can often be overcome by increasing substrate concentration.
5 B Xylem conducts water and mineral ions, mainly upward from roots.
6 C Photolysis of water supplies electrons and releases O2 during the light reactions.
7 B Insulin promotes glucose uptake and storage, lowering blood glucose.
8 C The nephron is the structural and functional unit of the kidney.
9 B Aa × aa produces Aa and aa in equal expected proportions.
10 B A population consists of individuals of the same species occupying an area.
