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- 1. Multiple ChoiceAn example of adhesion isWater molecules sticking to each otherWater molecules sticking to cellulose in xylem wallsMagnets sticking to a metal wallGravity pulling water down
- 2. Multiple Choice
What is it called when water sticks to water?
Cohesion
Adhesion
Capillary Action
Xylem
- 3. Multiple Choice
When the forces of cohesion and adhesion work together, water can move up the plant against the force of gravity by....
Phototropism
Geotropism
Photosynthesis
Capillary Action
- 4. Multiple Choice
How does water enter a plant?
through the stomata
through the roots
by active transport in root hair cells
by osmosis in root hair cells
- 5. Multiple Choice
How do mineral ions enter a plant?
by osmosis in root hair cells
by active transport in root hair cells
through the stomata
through the roots
- 6. Multiple Choice
Xylem tubes are made of...
Dead cells
Living cells
- 7. Multiple Choice
Phloem tubes are made of...
Dead cells
Living cells
- 8. Multiple Choice
Xylem tubes transport..
Water
Mineral ions
Food substances (e.g. sucrose)
- 9. Multiple Choice
Phloem tubes transport..
Water
Mineral ions
Food substances (e.g. sucrose)
- 10. Multiple Choice
Phloem tubes transport substances in which direction?
Up
Up and down
- 11. Multiple Choice
Xylem tubes transport substances in which direction?
Up
Up and down
- 12. Multiple Choice
Which process are the phloem tubes part of?
Translocation
Transpiration
- 13. Multiple Choice
Which process are the xylem tubes part of?
Translocation
Transpiration
- 14. Multiple Choice
Select which of the following statements are true for phloem.
Bi-directional movement (up and down stem).
Elongated, tubular shape with thin walled sieve tubes.
Transportation of feed and nutrients.
Occupy the centre of the vascular bundle.
Water and mineral transport from roots to aerial parts of the plant.
- 15. Multiple Choice
Recall which of the following form part of the phloem.
Sieve-tube elements
Trachieds
Vessels
Companion cells
- 16. Multiple Choice
Recall that the movement of food in the phloem is called.
Translocation
Transpiration stream
Evaporation
Respiration
- 17. Multiple ChoiceXylem and Phloem are both __.TranspirationAbsorptionPhotosynthesisVascular tissue
- 18. Multiple ChoiceOpening that allows gas exchangeStomataLeavesRootsVascular tissue
- 19. Multiple ChoiceWater exits the leaf through the __.StomataFlowerRootsPhloem
- 20. Multiple ChoiceWhich factor had the greatest impact on the rate of transpiration compared to the control?windhumiditylightdarkness
- 21. Multiple Choice
Which statement describes the phloem transport system of plants?
It transports sugar and is lignified
It transports sugar and is not lignified
It transports water and is lignified
- 22. Multiple Choice
Choose the two statements that indicate what would be happening in the plant when stomata are open.
Guard cells are turgid
Guard cells are plasmolysed
Transpiration increase
Transpiration decrease
- 23. Multiple ChoiceWhat is the name of the part of the root that allows water and minerals to enter?root hairsepidermisphloemphyla
- 24. Multiple ChoiceWhat is the effect of increasing leaf area on transpiration?It increases transpiration rateIt decreases transpiration rate
- 25. Multiple ChoiceWhat molecule is the phloem responsible for transporting?GlucoseWaterSucroseGlycogen
- 26. Multiple ChoiceWhat is the name given to the thin structures that make up the phloem?stomata tubessieve tubespalisade tubeskeratin tubes
- 27. Multiple ChoiceWhich cells actively transport sucrose?Protein channelsPhospholipidsCompanion cellsGolgi Apparatus
- 28. Multiple Choice
What is the important of companion cell between source and sieve tube?
Provide glucose for active transport
Provide ATP for active transport
Provide ATP for passive transport
Provide glucose for passive transport
- 29. Multiple Choice
What happen to the osmotic pressure in sieve tube due to high concentration of sucrose?
Increase
Decrease
No change
- 30. Multiple Choice
During translocation, which of the below is NOT correct about hydrostatic pressure in the sieve tube.
Hydrostatic pressure in source is higher than in sink
Hydrostatic pressure in source is lower than in sink
Hydrostatic pressure push the fluid from region with high hydrostatic pressure to lower hydrostatic presure.
Hydrostatic pressure increase due to low osmotic pressure in sieve tube
- 31. Multiple Choice
Structure of phloem consists all below, except?
Sieve tube element
Tracheids
Companion cell
Sieve plate
- 32. Multiple Choice
Which of the following allows transport of substances from a sieve element cell to a companion cell?
sieve plate
plasmodesmata
cell wall
pits
- 33. Multiple Choice
The pressure flow model for phloem translocation states..
that sink strength drives transport in the pholem
that transport in treachery elements is pressure dependent
the water potential gradient in the sieve elements drives transport
the pressure gradient between the sieve elements at the source and the sink drives phloem transport
- 34. Multiple Choice
In an apple tree, it is expected that the sugars produced by the tree would flow from (i)____________ to (ii)__________________.
Choose the option that would correctly fill in the terms in the sentence above.
(i) a leaf (ii) a growing apple
(i) the trunk (ii) a leaf
(i) the roots (ii) a growing shoot
(i) a growing shoot (ii) a leaf
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