UKUK USUSIndiaIndia

Every Question Helps You Learn

Join Us
Streak
Leading Streak Today
Your Streak Today
Streak
Leading Streak Today
Your Streak Today
Unit 3 - Xylem and Phloem
Plants need living phloem in order to transport sugars.

Unit 3 - Xylem and Phloem

All multicellular organisms require systems to transport fluids around their bodies. In plants, xylem and phloem tissue carry out this job and in this GCSE Biology quiz we take a closer look at these two similar yet different tissues.

Xylem and phloem both transport fluids in plants so what are the differences between them? Well, xylem is dead, woody tissue consisting of tubes and vessels which transport fluid (water containing minerals) from the roots of a plant, up through the stem and into its leaves. Phloem moves dissolved sugars from the leaves to the rest of the plant, including the growing regions and the storage tissues. The cells of the phloem are still living.

1 .
Name the special tissue which transports water and mineral ions.
Phloem
Storage
Xylem
Cardiac
Cells in the xylem tissue are dead
2 .
Name the process by which mineral ions move from the soil into the root.
Osmosis
Active transport
Hydrofoil
Diffusion
The concentration of minerals in the water of the soil is very low and is higher in the root hair cells. Uptake of mineral ions therefore takes place against a concentration gradient, so it must be active transport
3 .
Water leaves the plant leaves through...
stromata
stomata
tomato
sonata
Stomata are the tiny holes found on the underside of leaves and they let the water vapour out of the plant
4 .
This plant tissue is woody and dead.
Phloem
Mesophyll
Xylem
Storage
The xylem was made from living cells which laid down strong woody substances in the cell walls and became the tubes and vessels
5 .
Can Xylem vessels be blocked by air bubbles?
Yes
No
In some plants but not in most
In most plants but not in some
They are extremely tiny and so the forces of surface tension are high enough to 'glue' the air bubble to the walls of the xylem vessels, blocking the transpiration stream
6 .
If we use a poison which inhibits respiration, which of the following processes is not blocked?
Movement of sugars
Active transport
Synthesis of sugars
Movement of mineral ions and water
Xylem is dead tissue, so respiration is not taking place in the xylem. It can continue to function
7 .
Xylem is found in the...
roots only
roots and stem
roots, stem and leaves
flowers
Water and minerals from the soil are transported from the roots to the leves where they are used in photosynthesis and the synthesis of amino acids
8 .
Transpiration involves the movement of...
oxygen
ions
sugar
water
The water contains dissolved ions from the soil
9 .
Which specialised plant tissue transports dissolved sugars?
Xylem
Phloem
Leaves
Roots
Leaves and roots are plant organs - not tissues
10 .
Do plants need living phloem in order to transport sugars?
Yes
No
Some plants do but most don't
Most plants do but some don't
Phloem cells are essential to the process of translocation - the movement of food and amino acids through the plant
You can find more about this topic by visiting BBC Bitesize - Transport systems plants

Author:  Donna Maria Davidson

© Copyright 2016-2024 - Education Quizzes
Work Innovate Ltd - Design | Development | Marketing