- Cross Section Of Celery Please Label The Xylem And The Phloem Activity 2 2 Hdx Total Mag 7 The Presence Of The Vascul 1 (15.3 KiB) Viewed 77 times
- Cross Section Of Celery Please Label The Xylem And The Phloem Activity 2 2 Hdx Total Mag 7 The Presence Of The Vascul 2 (52.33 KiB) Viewed 77 times
- Cross Section Of Celery Please Label The Xylem And The Phloem Activity 2 2 Hdx Total Mag 7 The Presence Of The Vascul 3 (41.55 KiB) Viewed 77 times
or "lower d with a on the 6. Look for the stomata in each slide. Draw what you see, and answer the questions in section y two 2-1 of your report in Activity 2-2: Adaptations shared by vascular plants - xylem and phloem etting The non-vascular plants do not have true leaves. asing stems, or roots and rely on simple diffusion to get em. To water and nutrients to all parts of the plant. This limits their ability to grow big and away from water. Adaptations that arose in the vascular opened plants solved these problems and led to the water success of these plants. The vasculature consists guard of tubes that transport water from the roots up of into the leaves. These tubes are called xylem. A the second set of tubes transports food from the making photosynthetic parts of plants back down to the roots. These tubes are called phloem. In this activity you will examine the vasculature of plants. 1. Ferns belong to the first group of plants that use a vascular system, the seedless vascular plants. Examine the fern leaf on your table and identify the vein-like lines in the leaf. These are the vasculature of the plant that transports water and nutrients throughout the plant. Xylem, the vascular tissue responsible for water movement.is distinguished by the presence of resilient lignin in its thick cell walls. These cell walls stain red in prepared mounts and often look like a stretched-out spring (see your photo atlas). na of a 2. Some of the pesky strings of celery (an This angiosperm) that are destined to be caught in ant to your teeth are the vascular tubes of the celery are plant. Observe the celery that has been placed in dye. The tubes that have transported the dye to the leaves are the xylem tubes. it off of е 3. Using a sharp knife or razor blade, cut off a ing up thin piece of celery (a cross-section) and Cicle, examine it in your dissecting microscope. of the
F9 6* 78 8 0 2. Dr go SI 4. In section 2-2 of your report, draw a picture of what the cross-section looks like using the colored pencils in lab to show the arrangement of the xylem/phloem bundles (the dyed spots) 5. Answer the questions in section 2-2 of your report. Activity 2-3: Adaptations shared by seed plants - seeds and pollen Both non-vascular and seedless vascular plants (mosses and ferns, i.e.) require the presence of water on their structures for the sperm to be able to swim to the egg. This would eliminate the possibility for these plants to reproduce in dryer environments. In this activity you will examine two new adaptations (pollen and seeds) that freed plants from this constant moisture requirement and led to the great success of the seed plants (gymnosperms and angiosperms). Additionally, you will examine a couple of the unique features bonorms (meaning naked seed). Seeds Seed p in that nouris forme ovule. angios Notet seeds (locat (prod After delive ovule a pro sour The emb