GK
CHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
What elements is necessary for muscle contractions and nerve impulse transmission?
|
|
Ca
|
|
|
Na & K
|
|
|
Fe
|
|
|
I
|
Explanation:
Detailed explanation-1: -Calcium ions are required for muscle contraction, as well as for nerve impulse transmission.
Detailed explanation-2: -So the ion required for muscle contraction and nerve impulse transmission is Ca2+ and Na+ respectively.
Detailed explanation-3: -Both calcium & magnesium are required for muscle contraction. Calcium binds to troponin which exposes the active sites on actin. Now myosin head can bind the active sites on actin, initiating the process of muscle contraction. The hydrolysis of ATP is used to provide energy for muscle contraction.
Detailed explanation-4: -Detailed Solution. Sodium is essential for the transmission of nerve impulses in the nerve fibres of human body.
There is 1 question to complete.