wiz-icon
MyQuestionIcon
MyQuestionIcon
2
You visited us 2 times! Enjoying our articles? Unlock Full Access!
Question

Which option is correct for the correctly matched groups for the column I, column II and column III
Column IColumn IIColumn IIIA. Resting membrane potential(i) NA+channel get open(p) Na+ and K+ pumps are responsible for itB. Action potential(ii) Na+channel is closed(q) Last for very short timeC. Depolarisation(iii) Na+ions are more on outer side of membrane(r) K+ions move on outersideD. Repolarisation(iv) Na+ions are more on inner side of membrane(s) Positive charge on innerside of membrane

A
(A - iii - p) (B - iv - q) (C - i - s) (D - ii - r)
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
(A - ii - s) (B - i - r) (C - iii - p) (D - iv - q)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
(A - iv - q) (B - iii - p) (C - i - p) (D - i - s)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
(A - iv - p) (B - iii - q) (C - ii - r) (D - i - r)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A (A - iii - p) (B - iv - q) (C - i - s) (D - ii - r)
The generation of a nerve impulse is the temporary removal of the resting potential in the neuron.
The correct matchings are
(i) Resting membrane potential: It is the state of electrical potential difference across the resting plasma membrane.
The state of resting membrane is called polarised state which occurs due to Na+ and K+ pumps in which (Na^+\) is more on the outer side of the membrane.
(ii) Action potential: It is the state which lasts for a very short period of time. Na+ ions get greatly increased on the inner side of the membrane at the point of stimulation when the stimulus of adequate strength is applied to a polarised membrane.
(iii) Depolarization: It is a positive charge in a cell membrane making it more positive or less negative. In this Na+ ion channel opens due to which more positive charge gets accumulated on the inner side of membrane.
(iv) Repolarisation: It is a state of re - establishment of polarity, where resting potential is restored at the site of excitation. It is followed by a rise of impermeability to K+, i.e. within a fraction of a second, Na+ influx stops and K+ out flow begins (K+ ions moves on the outer side).

flag
Suggest Corrections
thumbs-up
0
similar_icon
Similar questions
View More
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Functions of a Neuron
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon