Biology Volume-2(Zoology-II)



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Contents

Cell: The unit of life


Description: Cells are the basic structural and functional units of life, performing essential processes and forming all living organisms.


Biomolecules


Description: Biomolecules, including carbohydrates, proteins, lipids, and nucleic acids, are essential organic molecules that support life's structure and function.


Differentiation, Dedifferentiation & Redifferentiation


Description: Differentiation in plants involves cells becoming specialized for specific functions, while redifferentiation is reverting specialized cells to a less specialized state.


Human Excretory System


Description: The human excretory system removes waste products from the body, primarily through the kidneys, ureters, bladder, and urethra.


Diseases & disorders of Excretory System


Description: Diseases of the excretory system include kidney stones, urinary tract infections, kidney failure, and bladder disorders, affecting waste elimination.


Human Neural System


Description: The human neural system controls body functions through the brain, spinal cord, and nerves, enabling sensation, movement, and cognition.


Human Sensory Organs


Description: Human sensory organs include eyes, ears and skin, enabling vision, hearing and touch sensations.


Endocrine Glands and Hormones


Description: Endocrine glands release hormones into the bloodstream, regulating metabolism, growth, and homeostasis, including thyroid, pituitary, adrenal, and pancreas.


Functions of Hormones


Description: Hormones regulate growth, metabolism, reproduction, mood, and homeostasis, coordinating body functions and responses to internal and external stimuli.


Adenohypophysis & Neuohypophysis


Description: Adenohypophysis (anterior pituitary) secretes hormones like growth hormone, while neurohypophysis (posterior pituitary) releases oxytocin and vasopressin.


Structure of DNA


Description: DNA is a double helix made of nucleotides, comprising a sugar-phosphate backbone and nitrogenous bases (A, T, C, G).


Concept of Alcohol, Phenol & Ethers


Description: Alcohols, phenols, and ethers are organic compounds containing hydroxyl or oxygen atoms, utilized in solvents, reactions, and industrial processes.


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