The imbalance distribution of Na+ and K+ inside and outside the cell is due to ()
A: the high permeability of cell membrane to K+ in rest condition
B: the increase of the permeability of the cell membrane to Na+ when excited
C: the result that Na+ and K+ moving across the cell membrane by facilitated diffusion
D: the effect of Na+ pump
E: the effect of ATP
A: the high permeability of cell membrane to K+ in rest condition
B: the increase of the permeability of the cell membrane to Na+ when excited
C: the result that Na+ and K+ moving across the cell membrane by facilitated diffusion
D: the effect of Na+ pump
E: the effect of ATP
举一反三
- Na+—K+泵水解一分子ATP可转运（） A: 3个Na、2个K B: 3个K、2个Na C: 2个Na、2个K D: 3个Na、3个K
- It is important to maintain the balance of water inside and outside the cell() A: glucose B: albuminNa+ C: K+ D: Na+
- Which of the following cell activities need energy consumption? <br/>() A: Maintain normal resting potential B: A large amount of Na+<br/>influx occurs when the threshold potential is reached C: K+<br/>outflow in repolarization phase of action potential D: Ca2+<br/>in the cytoplasm of skeletal muscle accumulates into the sarcoplasmic<br/>reticulum E: Uneven distribution of Na+<br/>and K+<br/>inside and outside the cell
- The myelin sheath of the peripheral nerve consists of A: Schwann cell membrane and cytoplasm B: only Schwann cell cytoplasm C: multiple layers of Schwann cell membrane D: only the lipid of Schwann cell membrane E: Schwann cell membrane and basal lamina
- Na泵能逆浓度差主动转运Na+和K+,其转运方式是 A: 将Na+和K+转人细胞 B: 将Na+和K+转出细胞 C: 将Na+转出细胞,K+转人细胞 D: 将Na+转人细胞,K﹢转出细胞 E: 以上都不对