2. Determine the size of each cell in the diagrams below using the ACTUAL SIZE OF THE CELL FORMULA. The diameter of the FOV has been given. Estimate the # of cells that fit across the FOV in the three examples. (Use the length of the cell for your estimation) Diameter of FOV = 1400 µm Diameter of FOV = 550 µm Diameter of FOV = 1200 µm Estimate # of cells to fit across FOV: Estimate # of cells to fit across FOV: Estimate # of cells to fit across FOV: Size = Size = Size =

2. Determine the size of each cell in the diagrams below using the ACTUAL SIZE OF THE CELL FORMULA. The diameter of the FOV has been given. Estimate the # of cells that fit across the FOV in the three examples. (Use the length of the cell for your estimation) Diameter of FOV = 1400 µm Diameter of FOV = 550 µm Diameter of FOV = 1200 µm Estimate # of cells to fit across FOV: Estimate # of cells to fit across FOV: Estimate # of cells to fit across FOV: Size = Size = Size =

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter5: Structure And Function Of Plasma Membranes

Section: Chapter Questions

Problem 7RQ: A scientist compares the plasma membrane composition of an animal from the Mediterranean coast with...

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4. To demonstrate the separation between the onion cell wall and plasma membrane, carefully lift the cover slip and add a few grains of salt. Return the cover slip and describe what happens.
1. What substance is often applied on a slide specimen of cells or tissues that help enhance the appearance of cell parts under the microscope? 2. Name a very common, easily available, solution that is applied on onion cells or tissue to enhance their microscopic appearances?(
1. Consider some question about cell structure or function that you would be interested in answering. Would the data required to answer the question be easier to collect by working on an entire plant or animal or on a population of cultured cells? What might be the advantages and disadvantages of working on a whole organism versus a cell culture?
1. Describe two cells with atypical cell walls. Why is this information so important to know, especially in the medical field?
Which of the following statements is false? Proteins in the plasma membrane can: a. transport ions. b. transport chloride ions when there are two mutant copies of the cystic fibrosis transmembrane conductance regulator gene. c. recognize self versus foreign molecules. d. allow adhesion between the same tissue cells or cells of different tissues. e. combine with lipids or sugars to form complex macromolecules.
A scientist compares the plasma membrane composition of an animal from the Mediterranean coast with one from the Mojave Desert. Which hypothesis is most likely to be correct? The cells from the Mediterranean coast animal will have more fluid plasma membranes The cells from the Mojave Desert animal will have a higher cholesterol concentration in the plasma membranes The cells’ plasma membranes will be indistinguishable The cells from the Mediterranean coast animal will have a higher glycoprotein content, while the cells from the Mojave Desert animal will have a higher lipoprotein content.
Which of the following is the most fundamental feature that enables the cell to function as a distinct entity, separate from its environment? (a) nucleus (b) ribosomes (c) nucleic acids (d) plasma membrane (e) protein
A mutation in the gene for a cyclin protein might result in which of the following? a cell with additional genetic material than normal cancer a cell with less genetic material than normal any of the above
Relate the organizational similarities of all cells to the need to conduct essential life functions.
2.What types of cells would you expect to have high numbers of the following organelles?
1. When considering tight junctions, adherens junctions, and desmosomes: a. Which ones do not help in resisting mechanical stress and holding cell shape? Why not? b. Considering how the mechanical junctions are placed in the plasma membrane, why don’t they provide a truly sealed barrier?
1-You were in the laboratory, and your instructor asked you to measure the length of 20 stained plant cells on a readymade slide; which of the following sequence of steps would be the right thing to do once you get the slide? a. Observe, measure the length of each cell under medium power using the eye piece ruler. b. Observe, draw, measure and divide the length of your drawing by the actual size of the cell. c. Observe and measure the length of each cell under high power using the micrometer slide. d. Observe, draw. and measure your drawing under medium power using a micrometer slide. e. Observe, draw, and measure your drawing under high power using your ruler. 2- you made a plant cell drawing and that drawing measured 100 mm, what is the plant cell's magnification that measured 20 um under the microscope? 3-You were interested to see a human cell under the microscope, so you went to the lab to look for a dye stain human cells you looked for a stain called…