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Human Respiratory System: Gas Exchange and Regulation

The human respiratory system is essential for delivering oxygen to the body and removing carbon dioxide. Understanding its structure and function is crucial for NEET aspirants. Structure of the Respiratory System 1. Nasal Cavity: Filters, warms, and humidifies incoming air. Lined with mucous membranes and cilia to trap dust and pathogens. 2. Pharynx: Connects the […]

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Photosynthesis: Light and Dark Reactions

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy stored in glucose. Understanding the light and dark reactions of photosynthesis is essential for NEET aspirants. Structure of Chloroplasts Photosynthesis occurs in chloroplasts, which have the following structures: Thylakoids: Flattened sacs where light-dependent reactions occur. Grana: Stacks

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Human Immune System: Structure and Functions

The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against infections and diseases. A thorough understanding of its structure and functions is crucial for NEET aspirants. Structure of the Immune System 1. Innate Immunity: First Line of Defense: Physical and chemical barriers such as

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Human Digestive System: Anatomy and Physiology

The human digestive system is responsible for breaking down food, absorbing nutrients, and eliminating waste. A thorough understanding of its anatomy and physiology is crucial for NEET aspirants. Anatomy of the Digestive System 1. Alimentary Canal: Mouth: Begins the digestion process with mechanical chewing and enzymatic action of saliva. Pharynx and Esophagus: Transport food from

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Plant Hormones and Growth Regulators

Plant hormones and growth regulators play crucial roles in regulating plant growth, development, and responses to environmental stimuli. Understanding these hormones is essential for NEET aspirants. Major Plant Hormones 1. Auxins: Functions: Promote cell elongation, root initiation, and differentiation. Involved in phototropism and gravitropism. Example: Indole-3-acetic acid (IAA). Applications: Used in rooting powders and herbicides.

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Neurobiology: Nervous System and Neurotransmission

The nervous system is a complex network that controls and coordinates bodily functions. Understanding neurobiology is crucial for NEET aspirants, as it covers the structure and function of neurons, synapses, and neurotransmitters. Structure of the Nervous System 1. Central Nervous System (CNS): Brain: Controls thought, memory, emotion, touch, motor skills, vision, breathing, temperature, and other

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Human Immune System: Structure and Functions

The human immune system is a complex network that protects the body from infections and diseases. Understanding its structure and functions is crucial for NEET aspirants. Structure of the Immune System 1. Innate Immunity: First Line of Defense: Physical and chemical barriers such as skin, mucous membranes, and stomach acid. Second Line of Defense: Phagocytic

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Atomic Structure and Periodic Properties

Atomic structure and periodic properties are foundational concepts in chemistry. They explain the arrangement of electrons in atoms and the systematic variation in elemental properties. This knowledge is essential for NEET aspirants. Atomic Structure 1. Early Models of the Atom: Dalton’s Atomic Theory: Proposed that atoms are indivisible particles. Thomson’s Model: Described the atom as

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Chemical Coordination and Integration

Chemical coordination and integration involve the regulation of body functions through hormones secreted by the endocrine system. This system plays a crucial role in maintaining homeostasis. Overview of the Endocrine System The endocrine system comprises glands that secrete hormones directly into the bloodstream. Major glands include the pituitary, thyroid, adrenal glands, pancreas, and gonads (testes

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Molecular Basis of Inheritance

The molecular basis of inheritance explains how genetic information is passed from one generation to the next. This involves understanding DNA, RNA, and the processes of replication, transcription, and translation. DNA Structure DNA (Deoxyribonucleic Acid) is the hereditary material in all living organisms. It has a double helix structure composed of nucleotides, each containing a

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