What is difference between passive transport and active transport?
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Answer:
Active transport is the movement of molecules or ions against a concentration gradient (from an area of lower to higher concentration), which does not ordinarily occur, so enzymes and energy are required. Passive transport is the movement of molecules or ions from an area of higher to lower concentration
Active transport uses energy (ATP) for the moving the molecules in and out of the cellular membranes and therefore remain active, while in passive transport the molecules do not use energy for their movements and so the name is given as passive.
We all know that cell is the basic unit of life. It is responsible for all the activities that occur inside our body. But some specialized cells are assigned to do the specific task, which is essential for the body growth and development. These cells transport nutrients, chemicals, and other substances to other cells, by using this vital transport system. This transport mechanism present in the body is of two types, like active and passive.
The main aim of both the transport system is to carry molecules and ions across the cellular membrane. The outer layer is made up of the phospholipid bilayer, which maintains the homeostasis of the cell and checks the entry of the substances. Few specialized proteins along with semi-permeable membrane support the entry of the molecules. With this, we will discuss the important points, which distinguish the two types of the transport system.
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