CIE AS Biology 7.1 Transport Tissues

What are the functions of xylem tissue in a plant? (Select all that apply)

Dicotyledonous plants have seeds that contain one cotyledon.

Which of the following is NOT a cell type found in xylem tissue?

What is the main function of phloem tissue in a plant?

Where is xylem tissue located in the stem of a dicotyledonous plant?

The transport of organic compounds in phloem tissue can only occur upwards.

What are the main types of cells that make up the bulk of phloem tissue?

Which of the following is a characteristic of mature sieve tube elements?

Companion cells have lignified cell walls.

Which of the following statements is TRUE about the comparison of xylem and phloem tissue?

What is the process of transportation in xylem tissue called?

Mature xylem tissue is made up of living cells.

CIE AS Biology 7.1 Structure of Transport Tissues

Plant transport systems efficiently move substances throughout the plant
Dicotyledonous plants have two seed leaves (cotyledons) and a network of veins in their leaves
Leaves typically have broad blades and petioles (stalks)
Transport systems are crucial for meeting plant metabolic demands for glucose, hormones, and mineral ions
Plants need to transport glucose produced during photosynthesis to other parts of the plant
Water from the roots needs to be transported to the upper parts of the plant
The vascular system comprises xylem and phloem
Xylem transports water and mineral ions from the roots to the rest of the plant
Phloem transports substances from a source (e.g., leaf) to a sink (e.g., root)
Vascular bundles contain xylem and phloem
Xylem tissue is located in the center of root vascular bundles, surrounding the outside of stem bundles, and in the center of leaf veins.
Phloem is located around the outside of the stem vascular bundles and on the lower side of leaf veins.
Xylem vessels are composed of tracheids and vessel elements, which are water-conducting cells
Xylem vessels have thick walls strengthened by lignin, preventing collapse and providing support
Phloem tissue is made up of sieve tube elements and companion cells, which are involved in transport of organic materials (mainly sucrose) throughout the plant
Sieve tube elements are arranged end-to-end to form a continuous tube
Companion cells control the metabolism of the associated sieve tube member

Explore the essential structure and function of transport tissues in plants. This quiz covers the vascular system, including xylem and phloem, and their roles in moving water, minerals, and nutrients throughout the plant. Understand how these systems support plant metabolism and growth.