Podcast
Questions and Answers
Which of the following processes primarily drives water movement from the roots to the leaves in plants?
Which of the following processes primarily drives water movement from the roots to the leaves in plants?
- Capillary action due to adhesion and cohesion of water molecules
- Osmosis from soil to root cells
- Active transport of water into xylem vessels
- Transpiration pull generated by water evaporation from leaves (correct)
The Casparian strip in the endodermis of the root forces water and minerals to move through the symplast pathway.
The Casparian strip in the endodermis of the root forces water and minerals to move through the symplast pathway.
True (A)
What is the role of guard cells in regulating transpiration?
What is the role of guard cells in regulating transpiration?
Guard cells control the opening and closing of stomata, thereby regulating the rate of transpiration.
The movement of sugars from source to sink is known as ________.
The movement of sugars from source to sink is known as ________.
Match the following plant transport structures with their primary function:
Match the following plant transport structures with their primary function:
Which of the following factors does NOT affect the rate of transpiration?
Which of the following factors does NOT affect the rate of transpiration?
Active transport is not required for the loading of sugars into the phloem.
Active transport is not required for the loading of sugars into the phloem.
Briefly describe the cohesion-tension theory of water transport in plants.
Briefly describe the cohesion-tension theory of water transport in plants.
The waterproof layer that surrounds endodermal cells in plant roots is called the ________ strip.
The waterproof layer that surrounds endodermal cells in plant roots is called the ________ strip.
Match the following terms with their descriptions:
Match the following terms with their descriptions:
Which of the following best describes the role of proton pumps in sugar transport in plants?
Which of the following best describes the role of proton pumps in sugar transport in plants?
Root pressure is the primary force driving water transport in tall trees.
Root pressure is the primary force driving water transport in tall trees.
Describe how plants regulate water loss in arid environments.
Describe how plants regulate water loss in arid environments.
The cytoplasmic connections between plant cells that allow for symplastic transport are called ________.
The cytoplasmic connections between plant cells that allow for symplastic transport are called ________.
Match the following environmental factors with their effect on transpiration rate:
Match the following environmental factors with their effect on transpiration rate:
What is the primary function of transfer cells in plant leaves?
What is the primary function of transfer cells in plant leaves?
The pressure flow hypothesis explains the movement of water in the xylem.
The pressure flow hypothesis explains the movement of water in the xylem.
Explain the role of abscisic acid (ABA) in regulating stomatal closure.
Explain the role of abscisic acid (ABA) in regulating stomatal closure.
The evaporation of water from plant leaves is known as ________.
The evaporation of water from plant leaves is known as ________.
Match the following terms with their corresponding locations in a plant:
Match the following terms with their corresponding locations in a plant:
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