What is passive transport in simple terms?

Definition of passive transport : the movement of substances (as by diffusion) across a cell membrane without the expenditure of energy — compare active transport.

What is passive transport and examples?

Passive transport does not require energy input. An example of passive transport is diffusion, the movement of molecules from an area of high concentration to an area of low concentration. Sometimes, molecules cannot move through the cell membrane on their own.

What is the passive transport process?

Passive transport is a naturally occurring phenomenon and does not require the cell to exert any of its energy to accomplish the movement. In passive transport, substances move from an area of higher concentration to an area of lower concentration.

What is passive transport answer?

What is Passive Transport? Passive transport is the fundamental movement of ions and other molecular substances within the cells along the concentration gradient, without any external energy. It is also known as passive diffusion.

What is passive transport in biology quizlet?

Passive Transport. the movement of materials across a cell membrane that uses NO energy. Concentration Gradient. difference in concentration of solutes on two sides of a membrane. Molecules ALWAYS move from HIGH concentration to LOW concentration.

What is passive transport diffusion?

Diffusion is a passive process of transport. A single substance tends to move from an area of high concentration to an area of low concentration until the concentration is equal across the space. You are familiar with diffusion of substances through the air.

What is active and passive in biology?

Active transport uses energy for the mobility of the molecules in and out of the cellular membranes and therefore remains active, whereas in passive transport the molecules do not use any energy for their movements and so they are known as passive.

What is a difference between active and passive transport?

There are two major ways that molecules can be moved across a membrane, and the distinction has to do with whether or not cell energy is used. Passive mechanisms like diffusion use no energy, while active transport requires energy to get done.

What is primary active transport?

Primary active transport, also called direct active transport, directly uses chemical energy (such as from adenosine triphosphate or ATP in case of cell membrane) to transport all species of solutes across a membrane against their concentration gradient.

What is passive membrane transport?

Passive transport is a type of membrane transport that does not require energy to move substances across cell membranes. Instead of using cellular energy, like active transport, passive transport relies on the second law of thermodynamics to drive the movement of substances across cell membranes.