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Explore our biology and chemistry categories to find simple notes, clear explanations, examples, and useful study resources.
Biochemistry
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Millon’s Test: Principle, Procedure, Result, Uses
Millon’s test is a qualitative test for phenolic groups used to detect tyrosine in amino acids and proteins. Learn its principle, procedure, result, uses, and limitations.
Sep 27, 2026
Xanthoproteic Test: Principle, Procedure, Result, Uses
Learn the Xanthoproteic test, including its principle, procedure, results, applications, and limitations for detecting aromatic amino acids in proteins.
Sep 27, 2026
Seliwanoff’s Test: Principle, Procedure, Result, Uses
Learn Seliwanoff’s test, including its principle, reagent preparation, procedure, results, uses, and limitations for distinguishing ketose from aldose sugars.
Sep 26, 2026
Biology
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Difference between Red Blood Cells and White Blood Cells
What is the difference between RBC and WBC? Learn about their functions, structure, lifespan, count, and role in oxygen transport and immune defense.
Oct 14, 2026
Difference between Autotrophs and Heterotrophs
Autotrophs vs heterotrophs: understand how they get food, their types, examples, and key differences in a simple comparison table.
Oct 12, 2026
Difference between Osmosis and Diffusion
What is the difference between osmosis and diffusion? Find definitions, diagrams, examples and a complete comparison table here.
Oct 11, 2026
Cell Biology
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What is Nucleus: Definition, Structure and Functions
Learn what the nucleus is, its structure (envelope, pores, lamina, nucleoplasm, chromatin, nucleolus) and its key functions as the cell's control center.
Sep 29, 2026
Difference Between Unicellular and Multicellular Organisms
Learn the key differences between unicellular and multicellular organisms, including their cell structure, organisation, functions, reproduction, and examples.
Sep 28, 2026
Sperm Cell: Structure, Parts, Functions with a Labeled Diagram
Learn about the structure of a sperm cell, including its head, neck, middle piece, tail, functions, and role in fertilization, with a labeled diagram.
Sep 20, 2026
Chemistry
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First 20 Elements of the Periodic Table with Atomic Number
Learn the atomic numbers, symbols, and electronic configurations of the first 20 elements of the periodic table, from hydrogen to calcium.
Sep 23, 2026
Suspension: Definition, Properties and Examples
Learn what a suspension is in chemistry, its key properties, common examples, particle size, settling behavior, and how suspensions differ from other mixtures.
Sep 22, 2026
Homogeneous Mixture and Heterogeneous Mixture
Understand homogeneous and heterogeneous mixtures with simple definitions, characteristics, examples, and a clear comparison of their composition and properties.
Sep 22, 2026
Microbiology
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Differences between Bacteria and Amoeba
Explore the differences between Bacteria and Amoeba, their structure, size, nutrition, movement, reproduction, and other important characteristics.
Oct 3, 2026
Different Shape and Arrangement of Bacterial Cells
Learn about the different shapes and arrangements of bacterial cells, including cocci, bacilli, spirilla, and common patterns seen in bacterial groups.
Sep 21, 2026
MacConkey Agar: Composition, Principle, Preparation, Interpretation, Uses
Discover how MacConkey agar works as a selective and differential culture medium, including its composition, principle, preparation, results, and applications.
Sep 20, 2026
Microscopy
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Difference Between Simple and Compound Microscope
Learn the difference between simple and compound microscopes, including their lenses, magnification, uses, and key features with a detailed comparison.
Oct 2, 2026
Difference Between Light Microscope vs Electron Microscope
Learn the key differences between light and electron microscopes, including magnification, resolution, specimen preparation, image formation, and uses.
Oct 2, 2026
Microscope Parts and Their Functions with Labelled Diagram
Learn about the parts of a microscope and their functions, including structural and optical components, with a labelled diagram.
Sep 20, 2026
Physics
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Difference Between Solar Eclipse and Lunar Eclipse
Discover how solar and lunar eclipses occur, their different types, and the key differences in their alignment, duration, visibility, and safety.
Oct 4, 2026
Difference between Direct Current and Alternating Current
Understand the difference between AC and DC, their direction of flow, polarity, frequency, sources, and common applications.
Oct 4, 2026
Difference between Violet and Purple Colour
Violet and purple may look similar, but they are scientifically different. Learn how violet is a spectral colour and purple is a non-spectral colour.
Oct 4, 2026
Plant Science
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Difference Between Xylem and Phloem
Explore the differences between xylem and phloem, including their functions, structure, transport of substances, and roles in vascular plants.
Oct 5, 2026
Difference between Flowering and Non-flowering Plants
Learn the difference between flowering and non-flowering plants, their characteristics, reproduction, seeds, fruits, examples, and key features.
Oct 3, 2026
Rabi and Kharif Crops: Differences, Examples, Seasons & More
Rabi vs Kharif crops explained with their seasons, sowing and harvesting periods, examples, climate, rainfall, water requirements, and major growing regions.
Oct 1, 2026