There are two properties of the cell necessary to maintain nonequilibrium cellular composition; the first is selectivity and the second is energy conversion. Which of the following statement(s) is/are true concerning energy converting transport?
A. The site of energy conversion and transport in the plasma membrane involves the phospholipid component
B. The Na+-K++-ATPase derives energy from hydrolysis of extracellular ATP
C. In some systems, energy inherent in the transmembrane ion gradient can be used to drive transport of a second species
D. Examples of species transported via secondary active transport include hydrogen ions, calcium, amino acids and glucose
Answer:C
There are two properties of the cell necessary to maintain nonequilibrium cellular composition; the first is selectivity and the second is energy conversion. Which of the following statement(s) is/are true concerning energy converting transport?
A. The site of energy conversion and transport in the plasma membrane involves the phospholipid component B. The Na+-K++-ATPase derives energy from hydrolysis of extracellular ATP C. In some systems, energy inherent in the transmembrane ion gradient can be used to drive transport of a second species D. Examples of species transported via secondary active transport include hydrogen ions, calcium, amino acids and glucose