Answer:
Sodium and potassium ions moves against concentration gradient.
Explanation:
Sodium and potassium ions moves against concentration gradient.
Three sodium ions are exported and two potassium ions are imported, for every ATP that pump uses.
The sodium - potassium pumps help to maintain resting potential.
It also help to regulate the cellular volume
It also effects the transport.
It was discovered by Danish scientist Jens Christian in 1957.
He was awarded by Noble prize in 1997.
Answer:
True
Explanation:
All living things are made from many cells
Answer:
0.71
Explanation:
The molecular mass of NaCl is, 23+35.5
= 58.5
1 mole means molecular mass (in gram)
In 58.5 gm NaCl there is 1 mole.
So, 42.1 gm NaCl contains 42.1/58.5 =0.71 moles.
Answer:- The speed of the satellite is 7.6 .
Solution:- It's a unit conversion problem that could be solved using dimensional analysis which is also known as train trail method.
The given speed of the satellite is 17000 miles per hour and we are asked to convert it to kilometers per second.
given:
1 Kilometer = 0.62 mile
1 hour = 3600 second
Let's use this given info and plug in the values to make the set up as:
= 7.616
We round the answer to two significant figures, since the given number(17000) has only two significant figures.
Hence, the speed of the satellite is 7.6 .