Multiple Choice
Which of the following plant cells would exhibit the most turgor pressure?
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34. Vascular Plant Transport
Water Potential
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Water potential is generally most negative in which of the following parts of a plant?
A
Leaves
B
Stems
C
Roots
D
Flowers
Verified step by step guidance1
Understand the concept of water potential: Water potential is a measure of the potential energy in water and is a key factor in the movement of water through plants. It is influenced by solute concentration and pressure, and is typically measured in units of pressure (Pascals).
Recognize that water moves from areas of higher water potential to areas of lower water potential. This movement is crucial for the transport of water from the roots to the leaves in plants.
Consider the role of transpiration: Transpiration is the process by which water evaporates from the leaves, creating a negative pressure that pulls water upward from the roots through the xylem.
Identify the part of the plant where water potential is most negative: Since transpiration occurs in the leaves, they have the lowest water potential due to the loss of water vapor, creating a strong negative pressure.
Conclude that the leaves have the most negative water potential in a plant, as they are the primary site of water loss through transpiration, driving the upward movement of water from the roots.
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