Passive transport is the net movement of substances down a concentration gradient that does not require metabolic energy. Active transport is the movement of substances up a concentration gradient that requires energy.
Passive transport is the net movement of substances down a concentration gradient that does not require metabolic energy. Active transport is the movement of substances up a concentration gradient that requires energy.
Both active transport and passive transport occurs in cells. Active transport involves the movement of materials against concentration gradient. This process requires energy.
Passive transport involves the movement of materials in line with concentration gradient. This process does not requires energy. The exchange of sodium and potassium ions across the cell wall involves active transport.
[NOT] stay engaged in the topic. A media source is considered valid if it is presented in a factual, unbiased way. If there is a slow Internet connection or limited access to certain sites, it is often better to _____ a video file before streaming it to use as part of a presentation. Download
Blood always moves through the body by the heart’s pumping action. The muscles in the legs assist blood flow by their action. Aiding these actions, the veins have valves in them that prevent the blood from flowing backward.
Explanation: Enuresis Hematuria, the inability to control frequent urination especially at night. It's more common in kids. Not 100% sure if this is correct.