Neet prep 2024
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Physics MCQs
Q1. A particle has displacement x = t³ - 3t² + 2t. Acceleration at t = 2s is:
- A) 0 | B) 2 | C) 6 | D) 12
Answer: C) 6
Explanation: a = d²x/dt² = 6t - 6. At t=2, a=6.
Explanation: a = d²x/dt² = 6t - 6. At t=2, a=6.
[... Physics Questions 2 to 50 continue here ...]
Chemistry MCQs
Q51. Number of particles in one mole is:
- A) 6.022 × 10²³ | B) 3.011 × 10²³ | C) 1 × 10²³ | D) 9.8 × 10²³
Answer: A) 6.022 × 10²³
[... Chemistry Questions 52 to 100 continue here ...]
Biology MCQs
Q101. The basic unit of life is:
- A) Tissue | B) Organ | C) Cell | D) Atom
Answer: C) Cell
Q101. The basic unit of life is:
- A) Tissue
- B) Organ
- C) Cell
- D) Atom
Answer: C
Explanation: Cell is the smallest structural and functional unit of life.
Explanation: Cell is the smallest structural and functional unit of life.
Q102. DNA is located in:
- A) Cytoplasm
- B) Nucleus
- C) Ribosome
- D) Golgi body
Answer: B
Explanation: DNA is mainly present in the nucleus (also in mitochondria).
Explanation: DNA is mainly present in the nucleus (also in mitochondria).
Q103. Photosynthesis occurs in:
- A) Mitochondria
- B) Chloroplast
- C) Ribosome
- D) Nucleus
Answer: B
Explanation: Chloroplast contains chlorophyll for photosynthesis.
Explanation: Chloroplast contains chlorophyll for photosynthesis.
Q104. Protein synthesis occurs in:
- A) Nucleus
- B) Ribosome
- C) Mitochondria
- D) Golgi
Answer: B
Explanation: Ribosomes are the sites of protein synthesis.
Explanation: Ribosomes are the sites of protein synthesis.
Q105. Powerhouse of cell:
- A) Nucleus
- B) Ribosome
- C) Mitochondria
- D) Lysosome
Answer: C
Explanation: Mitochondria produce ATP (energy).
Explanation: Mitochondria produce ATP (energy).
Q106. Xylem transports:
- A) Food
- B) Water
- C) Hormones
- D) Oxygen
Answer: B
Explanation: Xylem carries water and minerals from roots to leaves.
Explanation: Xylem carries water and minerals from roots to leaves.
Q107. Phloem transports:
- A) Water
- B) Food
- C) Oxygen
- D) Minerals
Answer: B
Explanation: Phloem transports prepared food (sugars).
Explanation: Phloem transports prepared food (sugars).
Q108. Mendel is known as:
- A) Father of Biology
- B) Father of Genetics
- C) Father of Evolution
- D) Father of Ecology
Answer: B
Explanation: Gregor Mendel discovered laws of inheritance.
Explanation: Gregor Mendel discovered laws of inheritance.
Q109. Evolution theory was given by:
- A) Mendel
- B) Darwin
- C) Lamarck
- D) Watson
Answer: B
Explanation: Darwin proposed theory of natural selection.
Explanation: Darwin proposed theory of natural selection.
Q110. Ecosystem includes:
- A) Biotic factors
- B) Abiotic factors
- C) Both
- D) None
Answer: C
Explanation: Ecosystem includes living and non-living components.
Explanation: Ecosystem includes living and non-living components.
Q111. Cell membrane is:
- A) Permeable
- B) Impermeable
- C) Selectively permeable
- D) Rigid
Answer: C
Explanation: Cell membrane allows selective entry and exit of substances.
Explanation: Cell membrane allows selective entry and exit of substances.
Q112. Lysosomes are called:
- A) Powerhouse
- B) Suicide bags
- C) Protein factories
- D) Control center
Answer: B
Explanation: Lysosomes contain enzymes that can digest the cell itself.
Explanation: Lysosomes contain enzymes that can digest the cell itself.
Q113. ATP stands for:
- A) Adenosine triphosphate
- B) Adenine triphosphate
- C) Adenosine diphosphate
- D) Adenine diphosphate
Answer: A
Explanation: ATP is the energy currency of the cell.
Explanation: ATP is the energy currency of the cell.
Q114. Diffusion is movement of particles from:
- A) Low to high concentration
- B) High to low concentration
- C) Equal concentration
- D) None
Answer: B
Explanation: Diffusion occurs down the concentration gradient.
Explanation: Diffusion occurs down the concentration gradient.
Q115. Osmosis occurs through:
- A) Cell wall
- B) Semi-permeable membrane
- C) Cytoplasm
- D) Nucleus
Answer: B
Explanation: Osmosis is movement of water across semi-permeable membrane.
Explanation: Osmosis is movement of water across semi-permeable membrane.
Q116. Mitosis results in:
- A) Two identical cells
- B) Four different cells
- C) Two different cells
- D) One cell
Answer: A
Explanation: Mitosis produces two genetically identical daughter cells.
Explanation: Mitosis produces two genetically identical daughter cells.
Q117. Meiosis produces:
- A) Two cells
- B) Four haploid cells
- C) One cell
- D) Two diploid cells
Answer: B
Explanation: Meiosis results in four haploid gametes.
Explanation: Meiosis results in four haploid gametes.
Q118. Blood is a type of:
- A) Tissue
- B) Organ
- C) Cell
- D) Fluid
Answer: A
Explanation: Blood is a connective tissue.
Explanation: Blood is a connective tissue.
Q119. Heart has how many chambers?
- A) 2
- B) 3
- C) 4
- D) 5
Answer: C
Explanation: Human heart has 4 chambers (2 atria + 2 ventricles).
Explanation: Human heart has 4 chambers (2 atria + 2 ventricles).
Q120. Oxygen is transported by:
- A) Plasma
- B) RBC
- C) WBC
- D) Platelets
Answer: B
Explanation: Hemoglobin in RBC carries oxygen.
Explanation: Hemoglobin in RBC carries oxygen.
Q121. Nephron is unit of:
- A) Liver
- B) Kidney
- C) Lung
- D) Heart
Answer: B
Explanation: Nephron is the functional unit of kidney.
Explanation: Nephron is the functional unit of kidney.
Q122. Insulin regulates:
- A) Blood pressure
- B) Blood sugar
- C) Heart rate
- D) Temperature
Answer: B
Explanation: Insulin controls glucose levels in blood.
Explanation: Insulin controls glucose levels in blood.
Q123. Reflex action is controlled by:
- A) Brain
- B) Spinal cord
- C) Heart
- D) Kidney
Answer: B
Explanation: Reflex actions are quick responses controlled by spinal cord.
Explanation: Reflex actions are quick responses controlled by spinal cord.
Q124. Female gamete is:
- A) Sperm
- B) Ovum
- C) Zygote
- D) Embryo
Answer: B
Explanation: Ovum is the female reproductive cell.
Explanation: Ovum is the female reproductive cell.
Q125. Fertilization results in:
- A) Embryo
- B) Zygote
- C) Foetus
- D) Gamete
Answer: B
Explanation: Fusion of gametes forms zygote.
Explanation: Fusion of gametes forms zygote.
Q126. Immunity protects against:
- A) Diseases
- B) Growth
- C) Digestion
- D) Respiration
Answer: A
Explanation: Immune system defends against pathogens.
Explanation: Immune system defends against pathogens.
Q127. Vaccine provides:
- A) Disease
- B) Immunity
- C) Weakness
- D) Infection
Answer: B
Explanation: Vaccines stimulate immune response for protection.
Explanation: Vaccines stimulate immune response for protection.
Q128. Food chain shows:
- A) Energy flow
- B) Water flow
- C) Air flow
- D) Mineral flow
Answer: A
Explanation: Food chain represents transfer of energy.
Explanation: Food chain represents transfer of energy.
Q129. Producers are:
- A) Animals
- B) Plants
- C) Fungi
- D) Bacteria
Answer: B
Explanation: Plants produce food via photosynthesis.
Explanation: Plants produce food via photosynthesis.
Q130. Biodiversity refers to:
- A) Single species
- B) Variety of life
- C) Only plants
- D) Only animals
Answer: B
Explanation: Biodiversity means variety of living organisms.
Explanation: Biodiversity means variety of living organisms.
Q131. Chlorophyll is found in:
- A) Mitochondria
- B) Chloroplast
- C) Nucleus
- D) Ribosome
Answer: B
Explanation: Chlorophyll pigment is present in chloroplast for photosynthesis.
Explanation: Chlorophyll pigment is present in chloroplast for photosynthesis.
Q132. Stomata are present in:
- A) Roots
- B) Stem
- C) Leaves
- D) Flowers
Answer: C
Explanation: Stomata are small pores present on leaves for gas exchange.
Explanation: Stomata are small pores present on leaves for gas exchange.
Q133. Transpiration is loss of:
- A) Oxygen
- B) Water
- C) Food
- D) Minerals
Answer: B
Explanation: Plants lose water vapor through stomata.
Explanation: Plants lose water vapor through stomata.
Q134. Photosynthesis requires:
- A) CO₂
- B) Light
- C) Chlorophyll
- D) All of these
Answer: D
Explanation: All factors are necessary for photosynthesis.
Explanation: All factors are necessary for photosynthesis.
Q135. Respiration produces:
- A) Oxygen
- B) ATP
- C) Glucose
- D) Nitrogen
Answer: B
Explanation: Cellular respiration releases energy in form of ATP.
Explanation: Cellular respiration releases energy in form of ATP.
Q136. Plant hormones are called:
- A) Enzymes
- B) Auxins
- C) Vitamins
- D) Proteins
Answer: B
Explanation: Auxins are common plant growth hormones.
Explanation: Auxins are common plant growth hormones.
Q137. Seed germination needs:
- A) Water
- B) Oxygen
- C) Temperature
- D) All of these
Answer: D
Explanation: All conditions are necessary for germination.
Explanation: All conditions are necessary for germination.
Q138. Human digestive enzyme is:
- A) Amylase
- B) Insulin
- C) Hemoglobin
- D) Chlorophyll
Answer: A
Explanation: Amylase breaks down starch into sugars.
Explanation: Amylase breaks down starch into sugars.
Q139. Liver function is:
- A) Digestion
- B) Detoxification
- C) Respiration
- D) Circulation
Answer: B
Explanation: Liver detoxifies harmful substances.
Explanation: Liver detoxifies harmful substances.
Q140. Lungs help in:
- A) Digestion
- B) Respiration
- C) Circulation
- D) Excretion
Answer: B
Explanation: Lungs exchange oxygen and carbon dioxide.
Explanation: Lungs exchange oxygen and carbon dioxide.
Q141. Hemoglobin carries:
- A) CO₂
- B) Oxygen
- C) Nitrogen
- D) Water
Answer: B
Explanation: Hemoglobin binds oxygen in RBCs.
Explanation: Hemoglobin binds oxygen in RBCs.
Q142. Nervous system controls:
- A) Movement
- B) Coordination
- C) Response
- D) All of these
Answer: D
Explanation: Nervous system manages all body responses.
Explanation: Nervous system manages all body responses.
Q143. Endocrine glands secrete:
- A) Enzymes
- B) Hormones
- C) Blood
- D) Oxygen
Answer: B
Explanation: Hormones regulate body functions.
Explanation: Hormones regulate body functions.
Q144. Thyroid gland controls:
- A) Growth
- B) Metabolism
- C) Digestion
- D) Respiration
Answer: B
Explanation: Thyroid hormone regulates metabolism.
Explanation: Thyroid hormone regulates metabolism.
Q145. Reproduction ensures:
- A) Death
- B) Continuity of species
- C) Growth
- D) Digestion
Answer: B
Explanation: Reproduction maintains species survival.
Explanation: Reproduction maintains species survival.
Q146. Male gamete is:
- A) Ovum
- B) Sperm
- C) Zygote
- D) Embryo
Answer: B
Explanation: Sperm is the male reproductive cell.
Explanation: Sperm is the male reproductive cell.
Q147. Genetic variation is important for:
- A) Stability
- B) Evolution
- C) Death
- D) Mutation only
Answer: B
Explanation: Variation leads to evolution.
Explanation: Variation leads to evolution.
Q148. Natural selection was proposed by:
- A) Mendel
- B) Darwin
- C) Watson
- D) Lamarck
Answer: B
Explanation: Darwin proposed natural selection theory.
Explanation: Darwin proposed natural selection theory.
Q149. Decomposers are:
- A) Plants
- B) Animals
- C) Bacteria & fungi
- D) Humans
Answer: C
Explanation: Decomposers break down organic matter.
Explanation: Decomposers break down organic matter.
Q150. Environment includes:
- A) Living
- B) Non-living
- C) Both
- D) None
Answer: C
Explanation: Environment includes both biotic and abiotic factors.
Explanation: Environment includes both biotic and abiotic factors.
Q151. Ecology deals with:
- A) Cells
- B) Environment
- C) Tissues
- D) Organs
Answer: B
Explanation: Ecology studies interaction between organisms and environment.
Explanation: Ecology studies interaction between organisms and environment.
Q152. Habitat means:
- A) Food chain
- B) Natural home
- C) Energy flow
- D) Climate
Answer: B
Explanation: Habitat is the natural place where an organism lives.
Explanation: Habitat is the natural place where an organism lives.
Q153. Population means:
- A) One organism
- B) Group of same species
- C) Different species
- D) Ecosystem
Answer: B
Explanation: Population is group of organisms of same species.
Explanation: Population is group of organisms of same species.
Q154. Community consists of:
- A) One species
- B) Many species
- C) Only plants
- D) Only animals
Answer: B
Explanation: Community includes multiple species living together.
Explanation: Community includes multiple species living together.
Q155. Biosphere includes:
- A) Land
- B) Water
- C) Air
- D) All of these
Answer: D
Explanation: Biosphere includes land, water, and air supporting life.
Explanation: Biosphere includes land, water, and air supporting life.
Q156. Pyramid of energy is always:
- A) Upright
- B) Inverted
- C) Linear
- D) Circular
Answer: A
Explanation: Energy decreases at each trophic level → always upright.
Explanation: Energy decreases at each trophic level → always upright.
Q157. 10% law relates to:
- A) Water
- B) Energy transfer
- C) Population
- D) Temperature
Answer: B
Explanation: Only 10% energy is transferred to next trophic level.
Explanation: Only 10% energy is transferred to next trophic level.
Q158. Ozone layer protects from:
- A) Visible light
- B) UV rays
- C) Infrared
- D) X-rays
Answer: B
Explanation: Ozone layer absorbs harmful UV radiation.
Explanation: Ozone layer absorbs harmful UV radiation.
Q159. Global warming is due to:
- A) Oxygen
- B) CO₂
- C) Nitrogen
- D) Hydrogen
Answer: B
Explanation: CO₂ increases greenhouse effect.
Explanation: CO₂ increases greenhouse effect.
Q160. Acid rain is caused by:
- A) CO₂
- B) SO₂
- C) O₂
- D) H₂
Answer: B
Explanation: Sulfur dioxide forms sulfuric acid in rain.
Explanation: Sulfur dioxide forms sulfuric acid in rain.
Q161. Nitrogen fixation is done by:
- A) Plants
- B) Animals
- C) Bacteria
- D) Humans
Answer: C
Explanation: Bacteria convert nitrogen into usable form.
Explanation: Bacteria convert nitrogen into usable form.
Q162. DNA replication occurs in:
- A) G1 phase
- B) S phase
- C) G2 phase
- D) M phase
Answer: B
Explanation: DNA synthesis occurs during S phase.
Explanation: DNA synthesis occurs during S phase.
Q163. RNA differs from DNA in:
- A) Sugar
- B) Base
- C) Structure
- D) All of these
Answer: D
Explanation: RNA differs in sugar (ribose), base (uracil), and structure.
Explanation: RNA differs in sugar (ribose), base (uracil), and structure.
Q164. Mutation is:
- A) Normal process
- B) Genetic change
- C) Growth
- D) Digestion
Answer: B
Explanation: Mutation is sudden change in DNA.
Explanation: Mutation is sudden change in DNA.
Q165. Biotechnology uses:
- A) Plants only
- B) Animals only
- C) Microorganisms
- D) Minerals
Answer: C
Explanation: Microorganisms are widely used in biotechnology.
Explanation: Microorganisms are widely used in biotechnology.
Q166. Antibiotics kill:
- A) Viruses
- B) Bacteria
- C) Fungi
- D) Plants
Answer: B
Explanation: Antibiotics are effective against bacteria.
Explanation: Antibiotics are effective against bacteria.
Q167. Virus is:
- A) Living
- B) Non-living
- C) Both
- D) Plant
Answer: C
Explanation: Viruses show both living and non-living characteristics.
Explanation: Viruses show both living and non-living characteristics.
Q168. HIV affects:
- A) Heart
- B) Immune system
- C) Brain
- D) Liver
Answer: B
Explanation: HIV weakens immune system.
Explanation: HIV weakens immune system.
Q169. Malaria is caused by:
- A) Virus
- B) Bacteria
- C) Protozoa
- D) Fungi
Answer: C
Explanation: Malaria is caused by Plasmodium (protozoa).
Explanation: Malaria is caused by Plasmodium (protozoa).
Q170. Dengue spreads by:
- A) Housefly
- B) Mosquito
- C) Air
- D) Water
Answer: B
Explanation: Dengue is transmitted by Aedes mosquito.
Explanation: Dengue is transmitted by Aedes mosquito.
Q171. Tuberculosis affects:
- A) Liver
- B) Lungs
- C) Kidney
- D) Heart
Answer: B
Explanation: TB mainly affects lungs and is caused by bacteria.
Explanation: TB mainly affects lungs and is caused by bacteria.
Q172. Balanced diet includes:
- A) Carbohydrates
- B) Proteins
- C) Fats
- D) All of these
Answer: D
Explanation: Balanced diet contains all nutrients in proper amounts.
Explanation: Balanced diet contains all nutrients in proper amounts.
Q173. Vitamin D helps in:
- A) Vision
- B) Bone health
- C) Digestion
- D) Respiration
Answer: B
Explanation: Vitamin D helps in calcium absorption and bone strength.
Explanation: Vitamin D helps in calcium absorption and bone strength.
Q174. Deficiency of iron causes:
- A) Diabetes
- B) Anemia
- C) Cancer
- D) Obesity
Answer: B
Explanation: Iron deficiency leads to low hemoglobin → anemia.
Explanation: Iron deficiency leads to low hemoglobin → anemia.
Q175. Obesity is due to:
- A) Undernutrition
- B) Overnutrition
- C) Infection
- D) Genetics only
Answer: B
Explanation: Excess intake of food leads to obesity.
Explanation: Excess intake of food leads to obesity.
Q176. AIDS is caused by:
- A) Bacteria
- B) Virus
- C) Fungus
- D) Protozoa
Answer: B
Explanation: AIDS is caused by HIV virus.
Explanation: AIDS is caused by HIV virus.
Q177. Smoking affects:
- A) Brain
- B) Lungs
- C) Heart
- D) All of these
Answer: D
Explanation: Smoking damages multiple organs including lungs, heart, and brain.
Explanation: Smoking damages multiple organs including lungs, heart, and brain.
Q178. Drug addiction affects:
- A) Body
- B) Mind
- C) Behavior
- D) All of these
Answer: D
Explanation: Addiction impacts physical and mental health.
Explanation: Addiction impacts physical and mental health.
Q179. Hygiene prevents:
- A) Growth
- B) Diseases
- C) Respiration
- D) Digestion
Answer: B
Explanation: Clean habits reduce infection risk.
Explanation: Clean habits reduce infection risk.
Q180. First aid is given:
- A) Before doctor
- B) After doctor
- C) Never
- D) Only hospital
Answer: A
Explanation: Immediate help before medical treatment.
Explanation: Immediate help before medical treatment.
Q181. Blood group depends on:
- A) RBC
- B) Antigens
- C) Plasma
- D) Platelets
Answer: B
Explanation: Blood groups depend on antigens present on RBC.
Explanation: Blood groups depend on antigens present on RBC.
Q182. Universal donor is:
- A) A
- B) B
- C) AB
- D) O
Answer: D
Explanation: O blood group can donate to all.
Explanation: O blood group can donate to all.
Q183. Universal recipient is:
- A) A
- B) B
- C) AB
- D) O
Answer: C
Explanation: AB can receive from all blood groups.
Explanation: AB can receive from all blood groups.
Q184. Pulse rate is measured at:
- A) Veins
- B) Arteries
- C) Capillaries
- D) Nerves
Answer: B
Explanation: Pulse is pressure wave in arteries.
Explanation: Pulse is pressure wave in arteries.
Q185. Normal body temperature is:
- A) 35°C
- B) 36°C
- C) 37°C
- D) 38°C
Answer: C
Explanation: Normal human body temperature is 37°C.
Explanation: Normal human body temperature is 37°C.
Q186. Vaccination prevents:
- A) Infection
- B) Growth
- C) Digestion
- D) Respiration
Answer: A
Explanation: Vaccines protect against infectious diseases.
Explanation: Vaccines protect against infectious diseases.
Q187. Antibiotics are ineffective against:
- A) Bacteria
- B) Viruses
- C) Fungi
- D) Parasites
Answer: B
Explanation: Antibiotics do not work against viruses.
Explanation: Antibiotics do not work against viruses.
Q188. Diabetes affects:
- A) Sugar level
- B) Oxygen level
- C) Blood pressure
- D) Temperature
Answer: A
Explanation: Diabetes affects blood glucose levels.
Explanation: Diabetes affects blood glucose levels.
Q189. Insulin is produced by:
- A) Liver
- B) Pancreas
- C) Kidney
- D) Heart
Answer: B
Explanation: Pancreas secretes insulin hormone.
Explanation: Pancreas secretes insulin hormone.
Q190. Hypertension means:
- A) Low BP
- B) High BP
- C) Normal BP
- D) No BP
Answer: B
Explanation: Hypertension = high blood pressure.
Explanation: Hypertension = high blood pressure.
Q191. Cancer is caused by:
- A) Controlled cell division
- B) Uncontrolled cell division
- C) Infection only
- D) Nutrition
Answer: B
Explanation: Cancer involves uncontrolled growth of cells.
Explanation: Cancer involves uncontrolled growth of cells.
Q192. Tumor can be:
- A) Benign
- B) Malignant
- C) Both
- D) None
Answer: C
Explanation: Tumors may be benign or malignant.
Explanation: Tumors may be benign or malignant.
Q193. Antibiotic resistance occurs due to:
- A) Mutation
- B) Overuse
- C) Both
- D) None
Answer: C
Explanation: Resistance develops due to mutation and misuse.
Explanation: Resistance develops due to mutation and misuse.
Q194. Biodegradable waste is:
- A) Plastic
- B) Glass
- C) Organic waste
- D) Metal
Answer: C
Explanation: Organic matter can decompose naturally.
Explanation: Organic matter can decompose naturally.
Q195. Non-biodegradable waste is:
- A) Leaves
- B) Food
- C) Plastic
- D) Paper
Answer: C
Explanation: Plastic does not decompose easily.
Explanation: Plastic does not decompose easily.
Q196. Recycling helps to:
- A) Increase waste
- B) Reduce waste
- C) Pollute
- D) Destroy environment
Answer: B
Explanation: Recycling reduces waste and conserves resources.
Explanation: Recycling reduces waste and conserves resources.
Q197. Conservation means:
- A) Destruction
- B) Protection
- C) Pollution
- D) Waste
Answer: B
Explanation: Conservation is protection of natural resources.
Explanation: Conservation is protection of natural resources.
Q198. National parks are for:
- A) Farming
- B) Industry
- C) Wildlife protection
- D) Housing
Answer: C
Explanation: National parks conserve biodiversity.
Explanation: National parks conserve biodiversity.
Q199. Sustainable development means:
- A) Use resources fully
- B) Save for future
- C) Destroy nature
- D) Ignore environment
Answer: B
Explanation: Meeting present needs without harming future.
Explanation: Meeting present needs without harming future.
Q200. Ecology balance is maintained by:
- A) Humans only
- B) Plants only
- C) All organisms
- D) None
Answer: C
Explanation: All organisms contribute to ecological balance.
Explanation: All organisms contribute to ecological balance.
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