Question

In conifers fibres are likely to be absent in

• A. Primary phloem
• B. Leaves
• C. Secondary xylem
• D. Secondary phloem

Answer 1

The correct option is C Secondary xylem

• Secondary xylem is the xylem formed during secondary growth from the vascular cambium.
• Conifers show the presence of secondary xylem.
• The fibres are elongated, thick-walled cells of sclerenchyma.
• Sclerencyma is absent in secondary xylem, thus, secondary xylem is devoid of fibres.

Final answer: Option b. Secondary xylem.