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The usable energy form used by animal cells is adenosine triphosphate (ATP). ATP is produced through cellular respiration and provides the necessary energy for cellular functions such as metabolism, muscle contractions, and active transport.
Active Transport
Active because concentration in cells must remain hight than in the blood.
Active transport processes, such as the sodium-potassium pump, require cells to expend energy in the form of ATP. The energy from ATP is needed to move molecules or ions against their concentration gradient, from an area of lower concentration to an area of higher concentration.
Energy for primary active transport comes from ATP molecules. ATP is produced by the mitochondria. e.g. Na+/K+ ATPases are archetypal primary active transporters and they transport 3 Na+ ions out of cells and 2 K+ ions into cells by hydrolyzing one molecule of ATP. Energy for secondary active transport is stored in an established concentration gradient of ions across the cell membrane and drives transport with the tendency of ions to move from an area of high concentration to an area of lower concentration. e.g. Na+/glucose secondary transporters use the Na+ gradient (higher outside cells than inside) established by Na+/K+ ATPases to transport a molecule of glucose along with a sodium ion into cells.
Materials can move in and out of animal cells through one of two reasons: Passive transport or active transport. Passive transport happens naturally and requires no energy on the part of the cell. It usually happens through osmosis, diffusion, or facilitated diffusion. Active transport involves endocytosis, exocytosis, or molecules moving from a low concentration to high concentration. Active transport requires energy.
The Active transport
Active Transport is carried out in our body cells. Active Transport uses energy to transport materials.
Both cell linings does active transport. Epitelial cells in root active transport nutrient such as ions into the root whereas epithelium cells in the small intestines.
in the cells
The usable energy form used by animal cells is adenosine triphosphate (ATP). ATP is produced through cellular respiration and provides the necessary energy for cellular functions such as metabolism, muscle contractions, and active transport.
Active Transport
active transport by endocytosis
Active because concentration in cells must remain hight than in the blood.
Just guess
Active transport
In the intestines, cells use active transport to pump nutrients such as glucose and amino acids from the intestinal lumen into the bloodstream. In the kidney, cells actively transport ions and small molecules from the blood into the nephron tubules for excretion in urine. In nerve cells, active transport is used to maintain the concentration gradients of sodium and potassium ions across the cell membrane, essential for nerve signaling.