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- 1. Multiple Choice
The tubes and support that transport water
and nutrients up, down and around in plants
Vascular System
Shoot System
Root System
Reproductive System
- 2. Multiple ChoiceVascular tissue that transports water and minerals UPWARDS from a plant's roots is know as ______.ChlorophyllPhloemStomataXylem
- 3. Multiple ChoicePlant absorbs water through the _________.stemrootsleavesall of the above
- 4. Multiple Choicewhat is the function of root hair?it is place to store the foodit has large surface area to absorb more water
- 5. Multiple ChoiceHow do water enter the roots from the soil?diffusionosmosistranspirationactive transport
- 6. Multiple ChoiceTranspiration isthe movement of water through a plant from the roots up the stemthe loss of water from the leaves of a plant by the process of evaporationthe flow of water into plant roots by osmosis from the soilthe process of minerals and sugars moving through plant veins
- 7. Multiple ChoiceThis is the definition for which word:The movement of water molecules from a high concentration of water to a low concentration of water across a partially permeable membrane.OsmosisDiffusionActive transportTranspiration
- 8. Multiple ChoiceWhich of these is true?Xylem vessels carry water and dissolved minerals up the plantPhloem tissue carry water and dissolved minerals up the plantXylem vessels carry dissolved sucrose up and down the plant
- 9. Multiple ChoiceWhat happens to the transpiration rate as light intensity increases?It increasesIt stays the sameIt decreases
- 10. Multiple ChoiceWhich of the following is responsible for the cohesion of water molecules?
hydrogen bonds between the oxygen atoms of a water molecule and cellulose in a vessel cellcovalent bonds between the hydrogen atoms of two adjacent water moleculeshydrogen bonds between the oxygen atom of one water molecule and a hydrogen atom of another water moleculelow concentrations of charged solutes in the fluid - 11. Multiple ChoiceWhat drives the flow of water through the xylem?passive transport by the endodermisthe number of companion cells in the phloemthe evaporation of water from the leavesactive transport by sieve-tube elements
- 12. Multiple ChoiceIgnoring all other factors, what kind of day would result in the fastest delivery of water and minerals to the leaves of a tree?cool, dry daywarm, dry daywarm, humid daycool, humid day
- 13. Multiple Choice
How does the mineral ions from the soil enter the roots?
by osmosis
by passive transport
by active transport
- 14. Multiple Choice
What is the importance of plant root having high concentration of mineral ions compare to in soil?
To ensure more mineral ions diffuse into roots.
To increase the surface area of roots.
To ensure water will enter the roots via osmosis
- 15. Multiple Choice
Lignin helps to prevent the ____________________ of the xylem vessels as a result of ________________ tension within the xylem, and this tension that is caused by the ___________________ exerted on water molecules within the xylem
collapse, high, root pressure
rupture, high, transpiration pull
bending, high, root pressure
collapse, high, transpiration pull
- 16. Multiple Choice
Xylem contributes to the mechanical strength of plants because of the presence of __________________
Suberin
Lignin
Large lumen
cross walls
- 17. Multiple Choice
Stomata are made of specialized cells called ______ which surround a tiny pore/opening
stoma
guard cells
dermal cells
diffusion channels
- 18. Multiple Choice
The main function of stomata is to
capture sunlight
protect leaves from insects
allow gases to move rapidly in/out of leaves
release sugars into the atmosphere
- 19. Multiple ChoiceWhere are the stomata found on the leaf?On the cuticleIn the mesophyll layerOn the underside of the leafIn the vascular tissue
- 20. Multiple Choice
Xylem tubes are made of...
Dead cells
Living cells
- 21. Multiple ChoiceWhich factor will decrease the rate of transpiration?WindTemperatureLight intensityHumidity
- 22. Multiple ChoiceWhich of the following is an adaptation of a xerophyte?reduced rootshairy leavesmany stomatathin cuticle
- 23. Multiple ChoiceWhat BEST defines adhesion.Water molecules bonding to each other due to the hydrophobic nature of water.Water molecules bonded to other other surfaces due to the transparency of water.Water molecules sticking to each other due to the polarity of water.Water molecules sticking to other surfaces due to the polarity of water.
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