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- 9.Explain and how to grow from a patient’s own tissues ?2. What difference is seen between cork cells and the onion bulb epidermis cells?7. A cross-section of the epidermis of the leaf of an eggplant was prepared as seen in Figure 10. Identify and label the types of epidermal outgrowth of the observed plants. Using an arrow and a text box, locate and identify the type of epidermal outgrowth of the observed on Figure 10. Figure 10. Leaf of Eggplant under LPO.
- A fixative serves to :- a. stop tissue decay. b. improve contrast. c. repair a damaged tissue. d. bind epithelial cells together. e. bind cardiac myocytes together.2. The capacitive properties of biological tissues are connected: a - with the active resistance; b - with the features of structure of cellular membranes; c - with the polarization phenomena; d - with the structural properties of structure (presence conductive and nonconductive layers in tissues); e - with inductance.8. The walls of epidermal cells on the aerial parts of the plant are covered with a waxy layer, called
- 1. What is the view of the tissue section under a light microscope? * A. whole mount B. 2-D image C. 3-D image D. stereoscopic 2. Why do you need to wrap the petri plates with used bond papers? * A. to prevent condensation. B. to prevent breakage C. to prevent contamination D. all of these are correct1. Examine Figure 7-13. What are the four diffusion paths that a molecule might follow as it travels through the root epidermis and cortex? Why does this diagram stop at the endodermis? What happens at the endodermis?1. Distinguish taxis from a tropism. 2. What is thigmotaxis? Describe what happens when the Paramecium bumps against something. 3. What is chemotaxis? Does the acid solution cause a positive or negative response in the Paramecium?
- 5. Differentiate between sclerenchyma and parenchyma tissues.3. Equal numbers of fibroblasts and endothelial cells are present initially in a culture. a. If the endothelial cells double every 40 hours and the fibroblasts double every 20 hours, draw a graph showing the percentage of cells in the culture that are fibroblasts as a function of time (you can use excel). b. Come up with an equation to determine the time at which 90% of the cells will be fibroblasts and solve for time. Explain how you came up with your equation.2. When you eat a yam or a sweet potato, what kinds of cells and tissues are you consuming? Describe the tissue.