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Cellular Transport (Active and Passive transports

Abolfazl Pirghomi
Abolfazl Pirghomi

There are two types of cellular transport: passive transport which does not require energy, and active transport which does require energy. Passive transport includes diffusion, facilitated diffusion, and osmosis, where molecules spread from high to low concentration areas. Active transport moves particles against a concentration gradient using protein pumps, endocytosis, or exocytosis. Endocytosis brings material into cells, while exocytosis releases material from cells.

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Done by: Hassan Shadmani ,Hossien Tarban and Naveed Oroumchian
There are two Types of Cellular Transport: Passive Transport cell doesnt use energy 1. Diffusion 2. Facilitated Diffusion 3. Osmosis Active Transport cell does use energy 1. Protein Pumps 2. Endocytosis 3. Exocytosis
In passive Transport the cell uses no energy . Molecules spread out from an area of high concentration to an area of low concentration. There are three types of passive transport: Diffusion Facilitated Diffusion Osmosis
Diffusion: movement of particles from an area of high concentration to an area of low concentration. Diffusion continues until all molecules are evenly spaced (equilibrium is reached).
Facilitated diffusion: diffusion of specific particles through transport proteins found in the membrane. a. Transport Proteins are specific they select only certain molecules to cross the membrane b. Transports larger or charged molecules.
Osmosis: diffusion of water through a selectively permeable membrane. In osmosis water diffuses from a hypotonic (low solute concentrated) solution to a hypertonic (high solute concentrated) solution
In active transport the cell uses energy to transport particles. Movement is from an area of low concentration to an area of high concentration. There are three types: 1. Protein Pumps 2. Endocytosis 3. Exocytosis
Protein Pumps -transport proteins that require energy to do work. Example: Sodium / Potassium Pumps. Protein changes shape to move molecules: this requires energy
Endocytosis : taking bulky material into a cell Cell membrane in-folds around particle Membrane changes shape to allow the particle to pass. This is how white blood cells eat bacteria.
Exocytose: Forces material out of cell in bulk. membrane surrounding the material fuses with cell membrane Cell changes shape to guide the material out the membrane. EX: Hormones or wastes released from cell

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Cellular Transport (Active and Passive transports

  • 1. Done by: Hassan Shadmani ,Hossien Tarban and Naveed Oroumchian
  • 2. There are two Types of Cellular Transport: Passive Transport cell doesnt use energy 1. Diffusion 2. Facilitated Diffusion 3. Osmosis Active Transport cell does use energy 1. Protein Pumps 2. Endocytosis 3. Exocytosis
  • 3. In passive Transport the cell uses no energy . Molecules spread out from an area of high concentration to an area of low concentration. There are three types of passive transport: Diffusion Facilitated Diffusion Osmosis
  • 4. Diffusion: movement of particles from an area of high concentration to an area of low concentration. Diffusion continues until all molecules are evenly spaced (equilibrium is reached).
  • 5. Facilitated diffusion: diffusion of specific particles through transport proteins found in the membrane. a. Transport Proteins are specific they select only certain molecules to cross the membrane b. Transports larger or charged molecules.
  • 6. Osmosis: diffusion of water through a selectively permeable membrane. In osmosis water diffuses from a hypotonic (low solute concentrated) solution to a hypertonic (high solute concentrated) solution
  • 7. In active transport the cell uses energy to transport particles. Movement is from an area of low concentration to an area of high concentration. There are three types: 1. Protein Pumps 2. Endocytosis 3. Exocytosis
  • 8. Protein Pumps -transport proteins that require energy to do work. Example: Sodium / Potassium Pumps. Protein changes shape to move molecules: this requires energy
  • 9. Endocytosis : taking bulky material into a cell Cell membrane in-folds around particle Membrane changes shape to allow the particle to pass. This is how white blood cells eat bacteria.
  • 10. Exocytose: Forces material out of cell in bulk. membrane surrounding the material fuses with cell membrane Cell changes shape to guide the material out the membrane. EX: Hormones or wastes released from cell