AIIMS 2019 Botany Types of Transport MCQ Question

In the context of membrane transport mechanisms, uniport refers to the movement of a single type of molecule across the membrane in one direction, while antiport involves the simultaneous transport of two different molecules in opposite directions. Symport, on the other hand, describes the co-transport of two different molecules in the same direction across the membrane. Since the question describes these transport types accurately, option D is correct as it encapsulates the definitions provided. The other options are not relevant as they do not present any alternative answers or additional information related to the question.