Cavitation would have no effect on translocation.
Answer the following statement true (T) or false (F)
False
Clarify Question
What is the key concept addressed by the question?
• The concept in this question is cavitation and its effects on a plant.
What type of thinking is required?
o You are being asked to take what you already know and apply it to the effects of cavitation.
What key words does the question contain and what do they mean?
• Cavitation, which is the blockage of xylem.
• Translocation, which refers to the movement of nutrients through a plant.
Gather Content
What do you already know about cavitation in plants? How does it relate to the question?
• Xylem carries water through plant tissue.
• Phloem carries nutrients through plant tissue.
• Water flows from xylem to phloem, since the water potential in xylem is greater.
• Phloem relies on the influx of water to push nutrients into tissues.
• Cavitation refers to the presence of an air bubble in xylem.
• If a xylem vessel is blocked, associated phloem will be impeded too.
Consider Possibilities
What other information is related to the question? Which information is most useful?
• Content specific to key concept.
Choose Answer
Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
• If water flow is blocked, nutrient flow will be blocked as well.
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
• This question asked you to apply what you know about cavitation. Answering this question correctly depended on your ability to use cavitation and its effects on translocation in a new situation. If you got the correct answer, great job! If you got an incorrect answer, where did the process break down? Did you remember that cavitation stops the flow of water in xylem, or that if a xylem vessel is blocked, associated phloem will be impeded in function? Did you have trouble extending these ideas of cavitation and translocation to determine the correct answer?
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