Show how far the dye traveled in the submerged and air-dried celery stalks by drawing on the images below. © eScience Labs, 2016 Plant Circulation
Post-Lab Questions 1. How far did the dye travel in the celery which was submerged in water for 15 minutes? How far did it travel in the piece which was air-dried for 15 minutes? In the dry there is little movement, due to the breaking of the water column. In the submerged celery, dye moves upward at the tip and I see the colored dots. 2. In which celery stalk was the water column broken? The water column was broken in the air-dried celery stalk. EXPERIMENT 2: WATER MOVEMENT IN FLOWERS Post-Lab Questions 1. Record your hypothesis from Step 3 here. Be sure to address how the dye will affect the flower over time, and why. I will observe the movement of water by placing a white flower with a stem in red dye water. After 24 hour the flower will have gained color and in 48 hours the color will have darkened. The water moves through the stem by capillary action. 8. Show where the dye traveled in the flower after 24 and 48 hours and explain how it got there in the space provided. © eScience Labs, 2016 Plant Circulation
9. What factors can influence the rate of transpiration in flowers? Sunlight, size of flower, or number of stomata in petal. © eScience Labs, 2016 Plant Circulation
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- Fall '19
- Xylem, Vascular plant