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Chapter 4: Cells - Coggle Diagram
Chapter 4: Cells
Cells
The cell is the basic unit of structure and function in organisms.
All cells come from pre-existing cells.
All living organisms are composed of cells.
Types
Prokaryotic Cells
No true nucleus
Bacteria and Archaea
Lack membrane-bound organelles
Eukaryotic Cells
True nucleus containing genetic material
Animal, plant, fungi, and protist cells
Membrane-bound organelles
Organelles and Cellular Structures
Cell Structure and Components
Plasma Membrane
Phospholipid bilayer
Selective permeability
Nucleus
Nucleolus
Genetic material (DNA)
Nuclear Envelope
Cytoplasm
Organelles
Cytosol
Endoplasmic Reticulum (ER)
Rough ER: Studded with ribosomes, involved in protein synthesis.
Smooth ER: Lipid synthesis, detoxification.
Ribosomes
Goilgi
Cellular Transport
Active Transport
Requires energy (ATP)
Sodium-potassium pump
Passive Transport
Diffusion
Osmosis
Facilitated Diffusion
Endocytosis and Exocytosis
Cell Division in Eukaryotes
Cell Cycle
Interphase
G1
G2
S
Meiosis
Produces haploid gametes for sexual reproduction
Mitosis
Produces two identical daughter cells