Simple tissue - Group of similar cells that work together to perform a specific function, Complex tissue - Group of different cells that work together to perform a specific function, Organ - Group of tissues that work together to perform a specific function, Organ system - Group of organs that work together to fulfil a common purpose, Organism - A living thing with different organ systems that function together to maintain life and its activities, Division of labour - Work is (a) broken down into small and specific task that (b) can be performed at the same time because multicellular organisms have (c) different specialised cells that perform specific functions., Function of cell membrane - Controls the movement of substances in and out of the cell, Function of nucleus - Controls all cellular activities such as growth and repair of worn-out parts; contains DNA needed for cell division, Function of cytoplasm - Site of most chemical reactions in the cell, Function of vacuole - Stores water, nutrients and waste materials, Function of chloroplast - Site of photosynthesis to produce glucose, Function of cell wall - Protects plant cell from mechanical damage,

06 Basic Unit of Life - Cells

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