Types of Cell Movement

Study Notes

Diffusion: The random movement of molecules from an area of higher concentration to an area of lower concentration, resulting in uniform distribution.
Osmosis: The movement of water molecules from an area of higher concentration to an area of lower concentration through a selectively permeable membrane.
Active Transport: The movement of molecules from an area of lower concentration to an area of higher concentration, requiring energy input.

Temperature: Increased temperature increases kinetic energy, leading to faster movement.
Concentration Gradient: The difference in concentration between two areas drives the movement of molecules.
Surface Area: Increased surface area allows for more molecules to interact and move.
Particle Size: Smaller particles have a greater kinetic energy, making them more prone to movement.

Brownian Motion: The random movement of particles suspended in a fluid (gas or liquid) due to collisions with surrounding molecules.
Kinetic Molecular Theory: The theory that molecules are in constant random motion, with greater kinetic energy at higher temperatures.

Cellular Processes: Movement of molecules is essential for cellular functions, such as nutrient uptake and waste removal.
Diffusion of Oxygen: Oxygen diffuses from the lungs to the bloodstream, and then to the body's cells.
Waste Removal: The movement of waste products out of the cell and into the bloodstream for excretion.

Diffusion is the random movement of molecules from an area of higher concentration to an area of lower concentration, resulting in uniform distribution.
Osmosis is the movement of water molecules from an area of higher concentration to an area of lower concentration through a selectively permeable membrane.
Active transport is the movement of molecules from an area of lower concentration to an area of higher concentration, requiring energy input.

Temperature increase leads to faster movement due to increased kinetic energy.
Concentration gradient, the difference in concentration between two areas, drives the movement of molecules.
Increased surface area allows for more molecules to interact and move.
Smaller particles have a greater kinetic energy, making them more prone to movement.

Brownian motion is the random movement of particles suspended in a fluid (gas or liquid) due to collisions with surrounding molecules.
Kinetic molecular theory states that molecules are in constant random motion, with greater kinetic energy at higher temperatures.

Movement of molecules is essential for cellular functions, such as nutrient uptake and waste removal.
Oxygen diffuses from the lungs to the bloodstream, and then to the body's cells.
Movement of waste products out of the cell and into the bloodstream is crucial for excretion.

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