Cells are the smallest unit of life, with organisms composed of single or multiple cells, leading to diseases like cancer due to cellular malfunctions. Cells vary in appearance and function, with prokaryotic and eukaryotic cells having different structures and energy requirements.
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Diseases often originate at the cellular level due to malfunctions within cells, leading to various illnesses such as cancer.
The plasma membrane, made of a phospholipid bilayer, contains proteins, cholesterol, and carbohydrates that regulate cell functions and identity.
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What are cells?
Cells are the smallest unit of life, composing all organisms.