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Photomicrograph (in HPO) of Hydrilla. Give an objective description of the plant cell.
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- A. Eukaryotic Cells We first will examine cells of Elodea, a eukaryote. With forceps, obtain a leaf of Elodea. Prepare a stained wet mount of the leaf by placing the leaf on a slide, placing a drop of iodine stain on the leaf, and covering the slide and leaf with a coverslip. Examine the leaf under 10X magnification, and locate the cell wall, chloroplasts and much smaller mitochondria. Then switch to the 40X objective and examine one cell. To determine the three dimensional shape of the cell, use the fine adjustment knob to first focus on the upper surface of the cell, and then focus down through to the lower surface of the cell. What is the three dimensional shape of the cell? 3Provide a description of the plant cell of plastids in leaf of Hydrilla observed under high power objective in microscope.Give a short description of the T. spathacea leaf cells in 0.01 M and 0.30 M NaCl solutions. In the figures, label the cell wall, vacuole and tonoplast. Be sure to show the differences between the two leaves and describe them. Notice if the anthocyanin moved out of the vacuole.
- Examine As Shown. Why do most parenchyma cells as shown lack nuclei, whereas most as shown do have nuclei? In the geranium for as shown, did the real cells lack nuclei, or did something happen to the nuclei as the tissue was sliced to make the microscope slide?Match the letters on the diagram below to the terms. ________ stroma ________ thylakoid ________thylakoid space ________ outer membraneLabel the following structure/s: (Figure 1) Hydrilla leaf cells, identify the semi-rigid cell wall, chloroplasts, and cytoplasm.
- The body of Paramecium is covered with a rigid cell wall. Comment.Find and label the cell wall, cytoplasm, vacuole bounded by tonoplast, nucleus (if visible) of this turgid cellDraw a simple sketch illustrating a thylakoid membrane that is actively involved in chemiosmosis and label the two compartments it separates. Add the ATP synthase complex, indicate the proton gradient, and specify inwhich compartment ATP is synthesized.
