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Biology

Cell Theory, Organelles and their function, types of cells

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aleannac53
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28 views1 page

Biology

Cell Theory, Organelles and their function, types of cells

Uploaded by

aleannac53
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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Biology - Cell Structure and Function

Overview: Cells are the basic building blocks of life. Each component within a cell has a
specific function that contributes to the cell's overall operation.

Key Concepts:

1. Cell Theory:
o All living things are composed of cells.
o Cells are the basic units of life.
o All cells come from pre-existing cells.
2. Organelles and Their Functions:
o Nucleus: Contains genetic material (DNA) and controls cell activities.
o Mitochondria: Produces energy (ATP) through cellular respiration.
o Ribosomes: Synthesize proteins.
o Endoplasmic Reticulum (ER): Smooth ER synthesizes lipids; rough ER
has ribosomes for protein synthesis.
o Golgi Apparatus: Modifies, sorts, and packages proteins for secretion.
3. Types of Cells:
o Prokaryotic Cells: Simple cells without a nucleus (e.g., bacteria).
o Eukaryotic Cells: Complex cells with a nucleus (e.g., plant and animal
cells).

Applications: Understanding cell biology is crucial for research in medicine, genetics,


and biotechnology.

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