It is important to maintain the balance of water inside and outside the cell()
A: glucose
B: albuminNa+
C: K+
D: Na+
A: glucose
B: albuminNa+
C: K+
D: Na+
举一反三
- 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
- 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
- If the concentration of a solution outside a cell is less concentrated than inside the cell so that the cell gains water to its environment, the outside solution is said to be ____ to the cell contents. A: hypertonic B: in equilibrium C: isotonic D: hypotonic
- 2.What is the key to open up the cell so that the circulating glucose can get inside the cell A: certain receptors B: the rising glucose levels C: insulin D: ketone
- 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