1. Cell Physiology

2. Cell Physiology Most cells have the ability to: Metabolize
Digest foods
Dispose of wastes
Reproduce
Grow
Move
Respond

3. Membrane Transport Cell membrane is selectively permeable
Passive Transport
No energy input from the cell
Active Transport
Requires energy from the cell

4. Passive Transport Diffusion Movement from high to low concentration
Molecule requirements
Small
Lipid soluble
Have a membrane carrier
Osmosis
Diffusion of water
Filtration
Force by pressure not concentration
High pressure to low pressure
Simple diffusion
Facilitated diffusion

5. Active Transport Requires ATP input from cell Solute pumps
Specialized protein carriers
Most move from low to high concentration

6. Vesicular Transport Also requires ATP Exocytosis Endocytosis
Moves materials out of cell
Endocytosis
Phagocytosis
Cell eating
Protective function
Pinocytosis
Cell drinking
Routine process

7. Cell Life Cycle Results in identical daughter cells
Consists of interphase and cell division
Interphase
Longer phase, preparations to divide
Cell division
Mitosis
Division of the nucleus
Cytokinesis
Division of the cytoplasm

8. Cell Cycle

9. Protein Synthesis Proteins are essential to cell life
Two major processes
Transcription
Occurs in nucleus
DNA is transcribed into mRNA
Translation
mRNA moves from nucleus
mRNA translated into proteins
tRNA transfers amino acids
Ribosome assembles protein