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1. To consider on microslides made by electronic microscope endoplasmatic reticulum, Golgi complex, mitochondria, chloroplasts, ribosome, centrosome, lysosomes, peroxisomes.
а) microslide «Film of a cuticle of an onion»,
2. To draw into album:
a) Structure of endoplasmatic reticulum (Figure. 19.3)
b) Golgi complex (Figure 19.4)
c) Mitochondria (Figure 19.7a)
d) Chloroplasts in the plant cell (Figure 19.8)
e) Ribosome (Figure 19.9)
e) Centrosome (Figure 19.10)
CARRYING OUT of the CLOSING TEST CONTROL
Test 1. What is the largest organelle in a cell?
а) mitochondrion, b) ribosome, c) lysosomes, d) cell center?
Test 2. In what organelle are proteins synthesized:
а) nucleus, b) mitochondrions, c) ribosomes, d) lysosomes, e) mitosis center?
Test 3. At damage of what organelle the oxidation and energy release in a cell is broken:
а) golgi body, b) mitochondrion, c) ribosome, d) lysosome, e) cell center?
Test 4. What organelle is absent in a cell of the man, but contains in cells of green plants:
а) mitochondrion, b) ribosome, c) chloroplasts, d) chromosome, e) cell center?
Test 5. what parts the cell center does consists of:
а) two centrioles, b) two nucleoluses, c) vacuoles of various size, d) two chromosome, e) one nucleolus and two chromo-some?
Test 7. What is the basic function of lysosomes:
а) participation in a plastic exchange, b) participation in synthesis of carbohydrates, c) participation in digestion of various materials, d) participation in the synthesis of lipids?
Test 8. What cells have most of all of mitochondrions?
а) where synthetic processes take place, b) in erythrocytes, c) where the energy consumptions is greater, d) where the lipids are synthesized, e) where the carbohydrates are synthesized?
Problem 1. During treatment by hormone medicine named cortizol in the cells of men the acceleration of metabolism take place. What structural changes in the cytoplasm of cell are there?
1. Quantity of ribosomes becomes more.
2. Quantity of ribosomes becomes less.
3. Quantity of polysomes becomes more.
4. Quantity of polysomes becomes less.
5. Quantity of lysosomes becomes less.
Problem 2. During microscoping was found that quantity of ribosomes and polysomes becomes more. What does take place: activation or repression of protein synthesis? What are the other changes in cytoplasm structure?
5. Summarizing of the STUDY by the teacher and validation of performance of work by everyone student.
6. Place and time of STUDY: an educational room, 2 academic hours.
7. Equipment of STUDY: microscopes, microslides, tables, schemes.
8. Literary Sources:
1. Medical Biology: Textbook. - Simferopol: IAD CSMU, 2002. – P. 29 – 44.
STUDY 21
Theme: BIOLOGY of a CELL. A CELL AS ELEMENTARY GENETIC MORPHOlogical and FUNCTIONAL BIOLOGICAL UNIT. nucleus.
1. The MEANING of the THEME. The study of a microscopical constitution of cell nucleus allows more deeply to understand the causes of originating of pathologic process, promotes introduction in practice of new methods of diagnostics and treatment.
2. PURPOSE of STUDY. General: To receive representation about a cell nucleus to understand specifics organization of cells.
3. THE CONCRETE PURPOSES of STUDY:
3.1. To be able to find and to determine the basic components of a nucleus on microslides.
3.2. To receive representation about a nucleus ultrastructure.
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Figure 19.10 The Centrosome. | | | THE BASIC THEORETICAL ITEMS OF INFORMATION |