First slide

Secondary Growth

Question

Autumn wood formed in dicot stem during secondary growth

Easy

A

Is lighter in colour
B

Is darker in colour
C

Has lower density
D

Has large number of broader tracheary elements

Solution

In winter, the cambium is less active and forms fewer xylary elements that have narrow vessels, and this wood is called autumn wood or latewood. The autumn wood is darker and has a higher density.

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