The movement of materials across the cell membrane without using cellular energy is called passive transport. The movement of materials against a concentration difference is known as active transport. Active transport requires energy.
The movement of materials across the cell membrane without using cellular energy is called passive transport. The movement of materials against a concentration difference is known as active transport. Active transport requires energy.
Active transport requires the input of chemical energy to transport substances through membrane proteins whereas passive transport does not need chemical energy to occur. Diffusion and osmosis occur naturally due to the concentration gradient which exists between two liquids and are a form of passive transport.
active
Passive immunity is different from active immunity because it means that you can get it from another person and you can give it someone else. Active immunity is when you get it by yourself, not from another person, and you cannot pass it to another person.
passive
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Active transport requires energy; passive transport does not.
Active transportation and passive transportation (found in facilitated diffusion and osmosis)
active components can have gain, passive can't.
active
active transportation is the movement of molecules from a less crowded area to a more crowded area. passive transportation is the movement of molecules from a more crowded area to a less crowned area.
Active - Active Active - Passive
The two different types of sonar are passive and active.
Passive immunity is different from active immunity because it means that you can get it from another person and you can give it someone else. Active immunity is when you get it by yourself, not from another person, and you cannot pass it to another person.
Active transport requires energy because you are going against a gradient. Active transportation moving from low to high concentration, while passive transportation such as osmosis and diffusion go from high to low concentration. One example of passive transportation is a river. Floating downstream does not require any energy. You are simply moving with the gradient. If you wanted to go upstream, you would have to paddle. This requires an input of energy similar to active transport.
the cat was injured in a fight passive or active
passive
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Passive (diffusion).