The vascular cambium is responsible for producing which tissues?

I. It is resistant to microorganisms II. It comprises dead elements III. It comprises highly lignified cell wall IV. It is the peripheral part V. It is dark and tough Which of the above property doesn’t belongs to heart wood?

Which of the following is the correct sequence of tissues from the periphery to the center in a mature, woody dicot stem?

Estimation of the age of the tree is done by

Complementary cells are formed from

Secondary xylem and phloem in dicot stem are produced by

Identify the correct order of the components with reference to their arrangement from outer side to inner side in a woody dicot stem.

I.Secondary cortex

II.Autumn wood

III.Secondary phloem

IV.Phellem

Which of the following cell do not respire?

Vascular cambium of dicot root originates from the tissue located just below…A… bundles, a portion of pericycle tissue above the …B… forming a complete continues wavy ring, which later becomes …C…

Choose the correct combination of options for A-C

I. Annual rigs are formed as a result of seasonal environmental conditions

II. Tracheids/vessels elements are larger during periods when water is abundant

III. Tracheids/vessels elements have thicker wall during periods of water deprivation

IV. Wood formed in the previous years is darker than newer wood

Select the combination of correct statements from the options given below

Heartwood differs from sapwood in