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Cell

TermDefinition
Cell The basic structural and functional unit of all living organisms.
Osmosis Water moving through a membrane to balance concentrations of solutes.
Cell Theory Scientific theory stating all living things are composed of cells.
Cell Wall Rigid outer layer providing structural support and protection to cells.
Cell Membrane Flexible outer boundary regulating what enters and exits the cell.
Nucleus The cell’s control center containing genetic material and coordinating vital functions.
Organelle Specialized structures within a cell performing specific functions for survival.
Ribosome Small structures within a cell that synthesize proteins from instructions.
Nucleic Acid A barrier allowing specific molecules to pass while blocking others.
Selectively Permeable Jelly-like substance filling a cell and supporting all internal organelles.
Cytoplasm The cell's powerhouse converting nutrients into energy for various cellular activities.
Mitochondria A network of membranes involved in protein and lipid synthesis.
Endoplasmic Reticulum A cell organelle that packages, modifies, and sorts proteins for transport.
Golgi Apparatus Organelle in plant cells converting sunlight into energy through photosynthesis.
Chloroplast A cell organelle containing enzymes that break down waste and debris.
Lysosome A cell’s genetic blueprint carrying instructions for development, functioning, and reproduction.
DNA Movement of substances across a cell membrane without using energy.
Passive Transport Movement of substances across a cell membrane using cellular energy.
Active Transport Movement of molecules from high to low concentration without energy.
Diffusion A group of similar cells working together to perform functions.
Tissue A collection of tissues working together to perform specific functions.
Organ A group of organs working together to perform complex functions.
Organ System A process where a cell engulfs external materials by folding inward.
Endocytosis A process where a cell releases materials by fusing vesicles.
Exocytosis Process of vesicles fusing with plasma membranes to release contents.
Created by: user-2003849
 

 



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