16 Exencise 2 Cel Sercture and the Miceoncope FIGURE 2.3 Animal Cell Cheek Epith
ID: 184556 • Letter: 1
Question
16 Exencise 2 Cel Sercture and the Miceoncope FIGURE 2.3 Animal Cell Cheek Epithelial Cell 1. At objective Ix or Sx 2. Try to fill in the correct names of the indicated cellular structures without referring to t Figure 2.3. the labeled 3. What accounts for the difference in structure and shape of the cheek cells you observed in the Elodea and onion? epithelial cells compared to the Clean Up Take time for responsible clean up. Clean your microscope and return it, in good condition proper location. Return all other materials to the location specified by your instructor and dispose of waste materials as directed. Also participate in wiping down work surfaces. PRACTICE QUESTIONS Complete the sentence 1. eye-piece lens on a microscope microscope structure that allows adjustment in light and contrast. chloroplast movement within a plant cell. 2.- 3. little organs' that compartmentalize the cell, enhancing cellular activities. site of cellular respiration. site of photosynthesis. encloses environment in animal cells. the lens immediately above the microscope stage. organelle functioning in cellular digestion or disassembly. considered the structural and functional unit of life cellulose structure that aids in differentiating a plant cell from an animal cell. 5. 6, 7. the cytoplasm, delimiting the intracellular from extracellular 8. 9. 10.co 12. contains the cell's genetic material protein factory' of the cell. structures located inside the nucleus where ribosomes are produced. 13.Explanation / Answer
Ans:
Cheek cells are thin, flat and are irregular in shape with a large nucleus containing the DNA. Human cheek cell are found in the cheeks and has a nucleus and also provides nutrition to cheek by simply exchange. Cheek cells can reproduce. The epithelial cells in the lining of the mouth are referred to as basal mucosa and divide every 24 hours. They can be obtained by swab or a mouth rinse and they consist of the entire genetic makeup of the person body and therefore they are used for establishing the paternity and other investigations involving DNA.
Ans 1: ocular lens.
2: Light Intensity knob. Light on or off switch and intensity knob. Controls the intensity of the light coming from the bulb.
3: Cyclosis or cytoplasmic streming. Streaming movement within cell that allows for transport in the cytoplasm.
4: Little organs that perform specific functions in a cell. Enclosed by membrane of phospholipids and proteins.
5: Aerobic respiration in the presence of oxygen or anaerobic respiration. Prokaryotic cells carry out cellular respiration within the cytoplasm or on the inner surfaces of the cells. In eukaryotic cells mitochondria are the site of most of the reactions.
6: Chloroplast. Photosynthesis is the reaction that converts light energy to the chemical energy of glucose.
7: Plasma Membrane it is a thin membrane composed of proteins and fatty acid based lipids, that surrounds every living cell, delimiting the cell from the environment around it.
8: Objectives. It is the lenses of the microscope immediately above the slide.
9: Lysosomes and peroxisomes.
10: cells is called as the fundamental unit of life.
11: cell wall.
12: Nucleus. It is a distinct central organelle that contains the cells genetic material in the form of DNA.
13: Ribosomes. They function in the synthesis of proteins.
14: Nucleolus. It is the small, round structure in the nucleus where ribosomes are made. Ribosomes are small grain- shaped organelles that make protein.
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