Podcast
Questions and Answers
What is the main reason for water uptake by a cut shoot in a potometer?
What is the main reason for water uptake by a cut shoot in a potometer?
- Photosynthesis
- Absorption
- Respiration
- Transpiration (correct)
Why are potometers notoriously difficult to set up?
Why are potometers notoriously difficult to set up?
- They require frequent calibration
- They are sensitive to light exposure
- Air bubbles can disrupt their functioning (correct)
- They rely on complex mathematical formulas
How can the effect of wind, heat, and humidity on transpiration be measured using a potometer?
How can the effect of wind, heat, and humidity on transpiration be measured using a potometer?
- By increasing the scale of the potometer
- By changing the type of plant used in the experiment
- By adjusting the pH of the water in the potometer
- By altering the surrounding atmospheric conditions (correct)
What does measuring how far a bubble moves in a given period of time help determine in a potometer?
What does measuring how far a bubble moves in a given period of time help determine in a potometer?
In a potometer setup, why is it important to measure the surface area of both sides of the leaves?
In a potometer setup, why is it important to measure the surface area of both sides of the leaves?
What could be a useful unit for comparing transpiration rates in different plant species through a potometer?
What could be a useful unit for comparing transpiration rates in different plant species through a potometer?
What is the main factor influencing water potential in plant solutions?
What is the main factor influencing water potential in plant solutions?
How is water potential denoted in plant physiology?
How is water potential denoted in plant physiology?
What is the unit of measurement used to express water potential?
What is the unit of measurement used to express water potential?
In terms of water potential, what value is designated to pure water for convenience of definition?
In terms of water potential, what value is designated to pure water for convenience of definition?
What allows plants to move water to great heights?
What allows plants to move water to great heights?
What effect would a decrease in solute concentration have on the water potential of a plant cell?
What effect would a decrease in solute concentration have on the water potential of a plant cell?
Which component of water potential is responsible for reducing available potential energy when solutes are added to an aqueous system?
Which component of water potential is responsible for reducing available potential energy when solutes are added to an aqueous system?
In the context of water movement in plants, why is solute potential referred to as osmotic potential?
In the context of water movement in plants, why is solute potential referred to as osmotic potential?
Which of the following statements is true regarding the direction of water movement based on water potentials in plant systems?
Which of the following statements is true regarding the direction of water movement based on water potentials in plant systems?
What happens to the total water potential when Ψs decreases?
What happens to the total water potential when Ψs decreases?
