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CELL structure and function

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CELL
STRUCTURE AND FUNCTION
CELL
➔is the basic unit of structure and function
of life.
➔In other words, cells make up living things
and carry out activities that keep a living
thing alive.
ROBERT HOOKE
In the 1660s there was a
man named Robert Hooke.
Robert lived in Britain and was a scientist.
He was the first person to observe cells.
Classification of Cells
❖ According to number:
1.UNICELLULAR- made up of one cell
2.MULTICELLULAR- two or more cells
➔ According to structure:
1. PROKARYOTIC-without true nucleus, nucleiod region instead
Ex. bacteria
1. EUKARYOTIC- with “true” nucleus, separated by nuclear membrane
Ex. animals, plants, fungi, protists
RNA also serves as the raw material for making
ribosomes...
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