Leaving Certificate BiologyTransport & Gas Exchange in Plants
1 iQuiz
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Stomata are found mainly in the …
Stem Petals
Upper leaf surface Lower leaf surface
Root hairs are extensions of the …
Epidermis Ground tissue
Cuticle Xylem
Water enters the root hair by …
Diffusion Osmosis
Active transport Capillary action
The sticking together of similar molecules is called …
Conservation
Adhesion Active transport
Cohesion
Stomata are stimulated to open by …
High water pressure
Low O2
High CO2 Low CO2
The main gas which enters the leaf through the stomata during the
day is …
Water vapour Oxygen
Carbon dioxide Nitrogen
The loss of water vapour from the surface of the leaf is called …
Transpiration stream Transpiration
Translocation Evaporation
Gas exchange takes place in the stem through the …
Lenticels Stomata
Internodes Pores
When plant cells have a lot of water they are said to be …
Tensioned Turgid
Wilted Flaccid
Minerals are transported through a plant in the …
Phloem sieve tubes Companion cells
Xylem Ground tissue
Carbon dioxide enters the leaf by …
Transpiration Active transport
Osmosis Diffusion
Sugars made in photosynthesis are transported through the plant in
the …
Companion cells Xylem vessels
Sieve tube cells Ground tissue
Dixon and Joly suggested that water in the xylem is under …
Torsion Tension
Transport Transpiration
Water moves sideways from one xylem vessel to another through …
Sieve plates Pits
Spiral lignin Companion cells
Which of the following does not involve the upward movement of
water in the stem?
Root pressure Cohesion
Osmosis Translocation
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Transport & Gas Exchange in Plants 1 iQuiz