Q. Carrier ions like $Na^{+}$ facilitate the absorption of substances like
A) Amino acids and glucose
B) Glucose and fatty acids
C) Fatty acids and glycerol
D) Frustose and some amino acids
Explanation
Secondary active transport is of two main types- Co-transport ($e.g.,$ glucose and some amino acids along with inward pushing of excess $Na^{+}$) and counter transport ($Ca^{+}$ and $H^{+}$ import outwardly as excess $Na^{+}$ passes inwardly).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.