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Concept explainers
To determine:
How photosynthesis is affected when the stomata close.
Introduction:
The opening and closing of stomata is dependent on influx and out flux of K+ ions. The influx of K+ ions result in increase in ionic concentration allowing the water to move inside the guard cells whereas out flux of K+ ions increases the ion concentration outside the guard cell which makes water to flow out from the guard cells making them shrink and closing the stomata.
To determine:
How the movement of water into the root affected.
Introduction:
The transpiration takes place through stomata. During transpiration, negative pressure is created into the xylem tissue which leads to the upward flow of water.
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Chapter 44 Solutions
Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
- How is the movement of water through the xylem different from the movement of food through the phloem in the stem? What is the significance of transpiration in plants? Why do plants transpire?arrow_forwardWhy roots bend towards the source of water?arrow_forwardCan the direction of phloem transport change? Does phloem ever transport material into a leaf?arrow_forward
- Explain the role of stomata in controlling transpiration and photosynthesis; how are stomatesinvolved in maintaining leaf temperature?arrow_forwardDoes a shoot need to include a stem? Could a plant perform photosynthesis successfully with its leaves spread over the soil surface?arrow_forwardWhy can xylem transport water and minerals using deadcells, whereas phloem requires living cells?arrow_forward
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
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