Question

Which match is incorrect?

• A. Phloem-Bidirectional movement of material
• B. Xylem-Unidirectional movement of sap
• C. Sugar-Transported in form of disaccharide
• D. Porins-Inner membrane of plastids, mitochondria and all bacteria

Answer 1

The correct option is A Phloem-Bidirectional movement of material

Phloem ensures bidirectional movement of food, while xylem enables only unidirectional transport of water and other nutrients.

Sugar is transported throughout the plant in the form of a disaccharide.

Porins are present on the outer membranes of mitochondria, plastids and some bacteria and not on the inner membrane.

So, the correct answer is 'Porins-Inner membrane of plastids, mitochondria and all bacteria'.