A) releases energy
B) requires energy
C) produces ATP
D) produces a toxic substance
Correct Answer: B
Solution :
Active transport uses specific transport proteins called pumps, which use metabolic energy (ATP) to move ions or molecules against their concentration gradient. Common examples of active transport are \[N{{a}^{+}}-{{k}^{+}}\]ATPase, calcium ATPase and proton pump. In most animals the concentration of \[N{{a}^{+}}\] is about 10-20 times higher in the blood than within the cell and the concentration of \[{{K}^{+}}\] is just opposite of this. Such a low \[N{{a}^{+}}\]concentration inside the cell is maintained by the sodium potassium pump. The ATP is synthesized during oxidative phosphorylation in mitochondria and photophosphorylation in chloroplast.
You need to login to perform this action.
You will be redirected in
3 sec
