Question

In a dorsiventral leaf, the location of xylem and phloem is

• A. Abaxial and adaxial respectively
• B. Adaxial and abaxial respectively
• C. Both are abaxial
• D. Both are adaxial

Answer 1

Answer: (B)

Adaxial and abaxial respectively

in dorsiventral or dicot leaf, midirib or main vein represents the vascular bundles. In this, xylem is present towards upper epidermis and phloem present towards the lower epidermis. These are collateral, conjoint, closed the position of protoxylem and metaxylem is not specified clearly.

So, the correct answer is 'Adaxial and abaxial respectively'.