QUESTION 1 DOK 1
Which of the following statements is true regarding protons
and electrons?
SELECT AN ANSWER
They repel one another.
A
The are both located in the nucleus.
U
They attract one another.
U
They both have a positive charge.

They both repel each other

Explanation:

Protons are positive while electrons are negative thus repeling aginast the other.

option a is correct i.e.

explanation:

in context to the membrane of nerve impulse, the outer membrane of neuron is semi permeable that is only sodium ions can pass through the membrane i.e. smaller ions can pass through the membrane while larger ions cannot pass through it.