Characteristic Functions of Cells

Functions of Cells

• Metabolism and Energy Use

  • Involves all chemical reactions in a cell.

  • Includes energy transfer and heat production.

• Synthesis of Molecules

  • Cells build proteins, nucleic acids, and lipids.

• Communication

  • Cells produce and receive electrical and chemical signals.

• Reproduction and Inheritance

  • Each cell contains complete genetic information (DNA).

  • Some cells, like gametes, are specialized for genetic transmission.

Plasma (Cell) Membrane

• Functions of Cell Membrane

  • Forms boundary between cytoplasm and extracellular space.

  • Point of attachment for structures or other cells.

  • Facilitates recognition and communication.

  • Selectively permeable.