F5 BIO(BI) Chap 4

Water vapour released by __________.

• the stomata

• the epidermis

• the palisade cells

• the spongy mesophyll

Diagram show the cross section of _______.

• stem

• root

• leaf

• water vapour

Diagram shows cross section of a _______.

• leaf

• root

• stem

What is N ?

• Xylem

• Phloem

Vascular tissue that carries water upward from the roots to every part of a plant.

• Xylem

• Phloem

• Cohesion

• Root hairs

Attraction between molecules of the same substance such as water in the xylem.

• Adhesion force

• Transpirational pull

• Cohesion force

• Root pressure

Transport organic compound from the leaves to the stems and roots.

• Stem

• Phloem

• Xylem

• Tracheids

Which of the folowing is NOT the structural adaptations of xylem vessel?

• Consist of dead cell

• Have uneven lignin thickening

• Do not have cytoplasm

• Sieve plate on both ends of the sieve tube

Which of the following is the characteristic of xylem?

• Is a living cell

• Have sieve plate

• Arranged logitudinally from end to end to form a continuous tube

• Need companion cell to provide energy

Which of the following is the characteristic of phloem?

• Do not have nuclei, ribosomes or vacuoles

• Consist of dead cells

• Have uneven lignin thickening

• Cell wall of traceid has pits to allow water movement