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cell membrane
A biological barrier that surrounds and protects the cell, regulating the movement of substances in and out.
cytoplasm
The gel-like substance within the cell membrane that contains organelles and is the site of many cellular processes.
Cell Walls
Rigid outer layer found in plant cells, providing structure and protection.
Organelles
Specialized structures within a cell that perform distinct functions, such as energy production, protein synthesis, and waste processing.
Nucleus
The membrane-bound organelle that contains the cell's genetic material and controls cellular activities.
Chloroplasts
Organelles in plant cells that conduct photosynthesis, converting sunlight into energy.
Mitochondria
Organelles known as the powerhouse of the cell, responsible for producing energy in the form of ATP through cellular respiration.
Ribosomes
Small structures that synthesize proteins by translating messenger RNA.
Endoplasmic reticulum
A network of membranes in eukaryotic cells that aids in the synthesis, folding, modification, and transport of proteins and lipids.
Golgi bodies
Organelles that modify, sort, and package proteins and lipids for secretion or delivery to other organelles.
Tissue
A group of similar cells that work together to perform a specific function in the body.
Organ
A structure composed of different types of tissues that work together to perform a specific function in an organism.
Cell Theory
The scientific theory that states all living organisms are composed of cells, and that cells are the basic unit of life. It also posits that all cells arise from pre-existing cells.
Photosynthesis
The process by which green plants and some organisms use sunlight to synthesize foods with the help of chlorophyll, primarily converting carbon dioxide and water into glucose and oxygen.
Magnify
To make an object appear larger, often using a lens or microscope.
Disease
A disorder or malfunction of a biological system that results in negative effects on health.
Virus
A microscopic infectious agent that can only replicate inside the living cells of an organism, often causing disease.
Host Cell
A living cell.
Note 
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