NEET 2025 Physics: Key Topics

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Questions and Answers

A projectile is launched at an angle of 30 degrees with an initial velocity $v_0$. What angle of projection yields the same range, assuming air resistance is negligible and the launch speed is kept constant?

  • 45 degrees
  • 75 degrees
  • 90 degrees
  • 60 degrees (correct)

During the Carnot cycle, entropy remains constant during isothermal processes.

False (B)

What is the role of restriction enzymes in biotechnology?

cutting DNA

The primary function of xylem in plants is the transport of ______.

<p>water</p>
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Match the following ecological interactions with their descriptions:

<p>Mutualism = Both species benefit Commensalism = One species benefits, the other is unaffected Parasitism = One species benefits, the other is harmed Competition = Both species are negatively affected</p>
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Which of the following is the primary function of the loop of Henle in the nephron?

<p>Maintenance of the salt concentration gradient in the medulla (B)</p>
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In a monohybrid cross, the genotypic ratio in the F2 generation is always 3:1.

<p>False (B)</p>
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What is the significance of understanding reaction mechanisms in organic chemistry?

<p>predicting products</p>
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The enzyme responsible for unwinding DNA during replication is called ______.

<p>helicase</p>
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Match the following plant hormones with their primary functions:

<p>Auxin = Promotes cell elongation Gibberellin = Stimulates stem elongation Cytokinin = Promotes cell division Abscisic acid = Inhibits growth, promotes dormancy</p>
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What is the effect on the equivalent resistance of a circuit if you add a resistor in parallel?

<p>Decreases (A)</p>
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All chordates are vertebrates.

<p>False (B)</p>
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Define the term 'colligative properties' and give one example.

<p>properties that depend on the concentration of solute particles</p>
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During photosynthesis, light energy is converted into chemical energy in the form of ______.

<p>ATP and NADPH</p>
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Match the following exam strategies with their descriptions:

<p>Time Management = Allocating specific time for each section NCERT Focus = Thoroughly studying NCERT textbooks Mock Tests = Simulating exam conditions and evaluating performance Revision = Regular reinforcement of learning</p>
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What is the primary function of the ozone layer in the stratosphere?

<p>Absorbing ultraviolet radiation (C)</p>
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The purpose of a catalyst is to be consumed in a reaction to speed it up.

<p>False (B)</p>
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What is the role of the Golgi apparatus in a eukaryotic cell?

<p>processing and packaging proteins</p>
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Kepler's Third Law of Planetary Motion relates the square of the orbital period of a planet to the cube of the ______ of its orbit.

<p>semi-major axis</p>
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Match the following Chemistry terms with their definitions:

<p>Enthalpy = Heat content of a system Entropy = Measure of disorder Gibbs Free Energy = Predicts spontaneity of a reaction Activation Energy = Energy required for a reaction to start</p>
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Flashcards

Mechanics

The study of motion, forces, and energy; key areas include projectile, circular, and rotational motion; work-energy theorem.

Thermodynamics

Deals with heat, energy transfer, and the behavior of systems; includes heat engines, Carnot cycle, and thermodynamics laws.

Optics

Study of light behavior; includes ray optics (lenses, mirrors) and wave optics (interference, diffraction).

Electromagnetism

Electrostatics (fields, potential), current electricity (circuits, Ohm's law), magnetic effects, and electromagnetic induction.

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Human Physiology

The study of the structure and function of the human body's systems.

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Animal Kingdom

Classification of animals based on characteristics and examples from different phyla, including non-chordates and chordates.

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Genetics and Evolution

Mendelian genetics, chromosomal theory, DNA structure, evolutionary theories.

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Chemical Kinetics

Rate laws, activation energy concepts.

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Thermodynamics (Chemistry)

Enthalpy, entropy, Gibbs free energy.

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Equilibrium (Chemistry)

Chemical and ionic equilibrium principles.

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Solutions (Chemistry)

Colligative properties, Raoult's law.

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Electrochemistry

Electrochemical cells, Nernst equation.

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Photosynthesis

The study of light and dark reactions, as well as C3 and C4 pathways

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Respiration (Botany)

Includes glycolysis, Krebs cycle, and the electron transport system

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Plant growth and development

Plant hormones such as auxins, gibberellins, cytokinins, ethylene and abscisic acid

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Time Management

Allocate specific time for each section, and practice under timed conditions

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Conceptual Clarity

Understanding fundamental concepts as opposed to rote memorization

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NCERT Focus

Thoroughly study NCERT textbooks as they form the basis for the NEET exam

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Mock Tests

Regularly take mock tests to simulate exam conditions and evaluate performance

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Revision

Regular revision of all subjects to reinforce learning

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Study Notes

Physics Possible Questions for NEET 2025

  • Mechanics: Questions on projectile motion, circular motion, work-energy theorem, and rotational motion are highly probable.
  • Thermodynamics: Expect questions related to heat engines, Carnot cycle, and the laws of thermodynamics.
  • Optics: Questions on ray optics involving lenses, mirrors, and optical instruments, as well as wave optics focusing on interference, diffraction, and polarization.
  • Electromagnetism: Focus on electrostatics (electric fields and potentials), current electricity (circuits, Ohm's law), magnetic effects of current and electromagnetic induction.
  • Modern Physics: Questions from topics such as photoelectric effect, Bohr's model, nuclear physics, and semiconductors.
  • Units and Measurement: Dimensional analysis and error measurement questions are common.
  • Gravitation: Questions on gravitational potential, Kepler's laws, and the gravitational force.
  • Oscillations and Waves: Simple harmonic motion, damped oscillations, and wave properties are important areas.

Zoology Possible Questions for NEET 2025

  • Human Physiology: Questions on digestive, respiratory, circulatory, excretory, nervous, and endocrine systems are crucial.
  • Digestion and Absorption: Enzyme functions, absorption sites.
  • Breathing and Respiration: Lung volumes, respiratory disorders.
  • Body Fluids and Circulation: Blood composition, cardiac cycle.
  • Excretory Products and their Elimination: Kidney function, osmoregulation.
  • Neural Control and Coordination: Brain structure, nerve impulse transmission.
  • Chemical Coordination and Integration: Hormone functions and disorders.
  • Animal Kingdom: Focus on classification based on important characteristics and examples from different phyla.
  • Basis of Classification: Understanding the criteria used for classification.
  • Non-Chordates: Characteristics and examples of Porifera to Hemichordata.
  • Chordates: Key features and classification of chordates.
  • Genetics and Evolution: Mendelian genetics, chromosomal theory of inheritance, DNA structure, and evolutionary theories are essential.
  • Heredity and Variation: Mendel’s laws, inheritance patterns.
  • Molecular Basis of Inheritance: DNA replication, transcription, translation.
  • Evolution: Theories of evolution, evidences, and mechanisms.
  • Reproduction: Human reproductive system and reproductive health related questions.
  • Human Reproduction: Male and female reproductive systems, gametogenesis.
  • Reproductive Health: Contraception, STDs, infertility.
  • Ecology and Environment: Questions on ecosystems, biodiversity, and environmental issues.
  • Organisms and Populations: Population interactions, growth curves.
  • Ecosystem: Energy flow, nutrient cycles.
  • Biodiversity and Conservation: Threats, conservation strategies.
  • Biotechnology: Principles and processes of biotechnology and its applications in health and agriculture.
  • Biotechnology Principles and Processes: Restriction enzymes, cloning vectors.
  • Biotechnology and its Applications: Applications in medicine, agriculture.

Chemistry Possible Questions for NEET 2025

  • Physical Chemistry:
  • Chemical Kinetics: Rate laws, activation energy.
  • Thermodynamics: Enthalpy, entropy, Gibbs free energy.
  • Equilibrium: Chemical and ionic equilibrium.
  • Solutions: Colligative properties, Raoult's law.
  • Electrochemistry: Electrochemical cells, Nernst equation.
  • Solid State: Crystal structures, packing efficiency.
  • Surface Chemistry: Adsorption, catalysis.
  • Inorganic Chemistry:
  • Chemical Bonding and Molecular Structure: VSEPR theory, hybridization.
  • Coordination Compounds: Nomenclature, isomerism, bonding.
  • p-Block Elements: Chemistry of group 15, 16, 17, and 18 elements.
  • d- and f-Block Elements: Properties, oxidation states, coordination chemistry.
  • Metallurgy: Extraction of metals.
  • Organic Chemistry:
  • Basic Principles and Techniques: IUPAC nomenclature, isomerism, reaction mechanisms.
  • Hydrocarbons: Alkanes, alkenes, alkynes, aromatic hydrocarbons.
  • Haloalkanes and Haloarenes: Reactions, uses.
  • Alcohols, Phenols, and Ethers: Properties, reactions.
  • Aldehydes, Ketones, and Carboxylic Acids: Reactions, acidity.
  • Amines: Basicity, reactions.
  • Biomolecules: Carbohydrates, proteins, vitamins, nucleic acids.
  • Polymers: Types, preparation, properties.
  • Chemistry in Everyday Life: Drugs, food preservatives.
  • Stoichiometry: Mole concept, percentage composition, empirical and molecular formulas.
  • Redox Reactions: Balancing redox equations, oxidation number.

Botany Possible Questions for NEET 2025

  • Plant Physiology:
  • Photosynthesis: Light and dark reactions, C3 and C4 pathways.
  • Respiration: Glycolysis, Krebs cycle, electron transport system.
  • Plant Growth and Development: Plant hormones (auxins, gibberellins, cytokinins, ethylene, abscisic acid).
  • Transport in Plants: Xylem and phloem transport.
  • Mineral Nutrition: Essential elements, deficiency symptoms.
  • Plant Kingdom:
  • Algae, Bryophytes, Pteridophytes, Gymnosperms, Angiosperms: Characteristics and life cycles.
  • Plant Classification: Artificial, natural, and phylogenetic systems.
  • Morphology of Flowering Plants:
  • Root, Stem, Leaf: Modifications and functions.
  • Flower: Structure and arrangement of floral parts.
  • Fruit and Seed: Development and types.
  • Anatomy of Flowering Plants:
  • Tissues: Meristematic and permanent tissues.
  • Anatomy of Root, Stem, and Leaf: Tissue organization and functions.
  • Cell Biology:
  • Cell Structure: Cell organelles and their functions.
  • Cell Cycle and Cell Division: Mitosis and meiosis.
  • Genetics:
  • Principles of Inheritance: Mendelian genetics, chromosomal theory.
  • Molecular Basis of Inheritance: DNA structure, replication, transcription, translation.
  • Ecology:
  • Ecosystems: Structure and function, food chains, food webs, energy flow.
  • Biodiversity and Conservation: Importance, threats, conservation strategies.
  • Sexual Reproduction in Flowering Plants:
  • Pollination: Types and agents.
  • Fertilization: Events leading to fertilization.
  • Development of seeds and fruits.

NEET 2025 Exam Strategy

  • Time Management: Allocate specific time for each section during the exam. Practice mock tests under timed conditions.
  • Divide time according to subject strength.
  • Reserve time for review.
  • Conceptual Clarity: Focus on understanding the fundamental concepts rather than rote memorization.
  • Grasp underlying principles.
  • Relate concepts to real-life examples.
  • NCERT Focus: Thoroughly study NCERT textbooks as they form the base for the NEET exam.
  • Read NCERT multiple times.
  • Solve all NCERT examples and exercises.
  • Mock Tests: Regularly take mock tests to simulate exam conditions and evaluate performance.
  • Analyze performance to identify weak areas.
  • Adjust strategy based on mock test results.
  • Revision: Regular revision of all subjects to reinforce learning.
  • Create concise notes for quick review.
  • Use flashcards for quick recall.
  • Problem Solving: Practice solving a variety of problems to improve analytical skills.
  • Focus on understanding the problem-solving approach.
  • Solve previous years' question papers.
  • Stay Healthy: Maintain a healthy lifestyle with adequate sleep, exercise, and a balanced diet.
  • Manage stress through relaxation techniques.
  • Ensure proper sleep to improve concentration.
  • Balanced Study: Give equal importance to all subjects (Physics, Chemistry, Botany, and Zoology).
  • Identify high-weightage topics in each subject.
  • Allocate time based on difficulty level.
  • Effective Note-Taking: Develop a habit of taking concise and organized notes for quick revision.
  • Use diagrams and flowcharts for better understanding.
  • Highlight important points and formulas.

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