【单选题】The relaxation of skeletal muscle relies on the activity of the ________, which decreases cytoplasmic calcium concentration.
B.
dihydropyridine (DHP) receptor (L-type calcium channel)
C.
acetylcholine receptor
【单选题】Which statement is NOT true about effects of calcium overload on nerve cells?
A.
Calcium overload induced decreased glutamate level in brain
B.
Calcium overload interfering with tissue energy metabolism
C.
Calcium overload aggravates cerebral ischemia and hypoxia
D.
Calcium overload induced ROS production
【简答题】Besides calcium and iron, athletes also need______which will help them access energy and pr them from getting ill.
【单选题】下列不属于Word窗口组成部分的是( )
【单选题】如果某种东西你需要,但是你不愿为此花钱,那就说明这类东西存在( )。
【判断题】高尔基体和内质网都能进行蛋白质的运输,二者的主要区别是:高尔基体具有分拣作用,内质网则无
【单选题】Which of the following statements is NOT true?
A.
Today you can get calcium without eating any high-fat or high-calorie foods by choosing skim mill or low-fat yogurt.
B.
Calcium plays an important role in the movement of protein and nutrients inside cells.
C.
You can rely on pills instead of a calcium-rich diet to take enough calcium.
D.
If you want to absorb calcium, you should expose yourself to the sun's rays.
【单选题】We may infer that 'iodine, fluoride and calcium' are______.
A.
substances which act positively or negatively on man's health
B.
harmful substances in the water supply
C.
substances which help provide breeding places for pests
D.
substances contributory to good health
【单选题】下列不属于Word窗口组成部分的是( )