Physical biological and chemical
Yes it is ok now you know
Answer:
Lack of sleep.
Explanation:
Lack of sleep/tiredness is really bad for your reaction time.
Answer:
concentration gradient
Explanation:
concentration refer to number of ions on either side of membrane
gradient :difference in concentration on both sides of membrane
on this basis:
one side of membrane: higher concentration of h+ ion
other side of membrane :lower concentration f h+ ions
pumps transport ions from higher concentration side to lower concentration side of membrane
