Assertion: Secondary growth usually occurs in dicotyledonous stems. Reason: The vascular cambium present between xylem and phloem possesses the ability to form secondary xylem and secondary phloem respectively.

Question

Assertion: Secondary growth usually occurs in dicotyledonous stems. Reason: The vascular cambium present between xylem and phloem possesses the ability to form secondary xylem and secondary phloem respectively. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

Dicotyledonous stems usually show secondary growth in thickness, which is due to the activity of vascular cambium and cork cambium. Vascular cambium is present between phloem and xylem. Such vascular bundles because of the presence of cambium possess the ability to form secondary xylem and phloem tissues, and hence exhibit secondary growth.

Q. Assertion : Secondary growth usually occurs in dicotyledonous stems. Reason : The vascular cambium present between xylem and phloem possesses the ability to form secondary xylem and secondary phloem respectively.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

Q. Assertion : Secondary growth usually occurs in dicotyledonous stems.
Reason : The vascular cambium present between xylem and phloem possesses the ability to form secondary xylem and secondary phloem respectively.