Explain why some parts of a plant may act as a source and a sink at different times
Explain why some parts of a plant may act as a source and a sink at different times
1 AnswerQuestions and Answers
1 Answer Describe: (a) sources as the parts of plants that release sucrose or amino acids (b) sinks as the parts of plants that use or store sucrose or amino acids
Describe: (a) sources as the parts of plants that release sucrose or amino acids (b) sinks as the parts of plants that use or store sucrose or amino acids
1 Answer Explain how and why wilting occurs
Explain how and why wilting occurs
1 Answer Explain the effects on the rate of transpiration of varying the following factors: temperature, wind speed and humidity
Explain the effects on the rate of transpiration of varying the following factors: temperature, wind speed and humidity
1 Answer Explain how water vapour loss is related to: the large internal surface area provided by the interconnecting air spaces between mesophyll cells and the size and number of stomata
Explain how water vapour loss is related to: the large internal surface area provided by the interconnecting air spaces between mesophyll cells and the size and number of stomata
1 Answer Investigate and describe the effects of variation of temperature and wind speed on transpiration rate
Investigate and describe the effects of variation of temperature and wind speed on transpiration rate
1 Answer State that water evaporates from the surfaces of the mesophyll cells into the air spaces and then diffuses out of the leaves through the stomata as water vapour
State that water evaporates from the surfaces of the mesophyll cells into the air spaces and then diffuses out of the leaves through the stomata as water vapour
1 Answer Describe transpiration as the loss of water vapour from leaves
Describe transpiration as the loss of water vapour from leaves
1 Answer Investigate, using a suitable stain, the pathway of water through the above-ground parts of a plant
Investigate, using a suitable stain, the pathway of water through the above-ground parts of a plant
1 Answer Outline the pathway taken by water through the root, stem and leaf as: root hair cells, root cortex cells, xylem, mesophyll cells
Outline the pathway taken by water through the root, stem and leaf as: root hair cells, root cortex cells, xylem, mesophyll cells
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