Plant vascular system - Jamb Biology Past Questions and Answers

Question 21:

• JAMB 2011

The vascular tissues in higher plants are responsible for

A. The movement of food and water
B. Suction pressure
C. Transpiration pull
D. The transport of gases and water

Question 22:

• JAMB 2012

Which of the following is involved in secondary thickening in plants?

A. Collenchyma and xylem cells
B. Vascular cambium
C. Cork cambium and sclerenchyma
D. Vascular cambium and cork cambium

Question 23:

• JAMB 2014

In vascular plants, the sieve tubes and companion cells are present in the

A. Cambium
B. Cortex
C. Xylem
D. Phloem

Question 24:

• JAMB 2014

In the diagram, the part labelled I is the

A. Xylem
B. Phleom
C. Root hairs
D. Cortex

Question 25:

• JAMB 2021

One of the functions of the xylem is?

A. Strengthening the stem
B. Manufacturing food
C. Reducing loss of water
D. Conducting manufactured food