Campbell Biology with MasteringBiology Canvas Direct Integration for BSC 2011 University of South Florida, 1/e
1st Edition
ISBN: 9781323442982
Author: Reece
Publisher: Pearson Education
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Chapter 36, Problem 6TYU
A plant cell with a of -0.65 MPa maintains a constant volume when bathed in a solution that has a Ψs of-0.30 MPa and is in an open container. The cell has a
- (A) Ψp of +0.65 MPa.
- (B) Ψ of -0.65 MPa.
- (C) Ψp of+0.35 MPa.
- (D) Ψp of 0 MPa.
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Given: A 10,000L bioreactor may have 100 trillion cells. Let’s assume that this cell solution has the same density as water.
(answer A, B, and C)
A. What cell density is this (per kg)?
B. What is the ratio of cell density in your body compared to that in a bioreactor?
C. What is limiting cell densities in a bioreactor that your body has managed to overcome?
In a photosynthetic investigation, a student measured the following pH of the stroma and the inner thylakoid compartments of spinach leaf cells at the conclusion of the experiment.
Source of Fluid
pH
(mean)
Standard Error of Mean (SEM)
Stroma
8.2
0.75
Inner compartment of thylakoid
5.6
0.35
b. Construct an appropriately labeled graph to illustrate the sample means of the two locations to within 95% confidence (i.e. sample mean + 2 SEM).
Water will always move from an area of high water potential to low water potential. If you drop a cell with WP = 0 into the water with WP = -0.9, then what will happen to the cell?
Chapter 36 Solutions
Campbell Biology with MasteringBiology Canvas Direct Integration for BSC 2011 University of South Florida, 1/e
Ch. 36.1 - Why is long-distance transport important for...Ch. 36.1 - Some plants can detect increased levels of light...Ch. 36.1 - WHAT IF? If you prune a plant's shoot tips, what...Ch. 36.2 - If a plant cell immersed in distilled water has a...Ch. 36.2 - Prob. 2CCCh. 36.2 - How would the long-distance transport of water be...Ch. 36.2 - Prob. 4CCCh. 36.3 - Prob. 1CCCh. 36.3 - WHAT IF? Suppose an Arabidopsis mutant lacking...Ch. 36.3 - MAKE CONNECTIONS How are the Casparian strip and...
Ch. 36.4 - Prob. 1CCCh. 36.4 - Prob. 2CCCh. 36.4 - WHAT IF? If you buy cut flowers, why might the...Ch. 36.4 - Prob. 4CCCh. 36.5 - Prob. 1CCCh. 36.5 - Prob. 2CCCh. 36.5 - Prob. 3CCCh. 36.5 - WHAT IF? Apple growers in Japan sometimes make a...Ch. 36.6 - How do plasmodesmata differ from gap junctions?Ch. 36.6 - Prob. 2CCCh. 36.6 - WHAT IF? Suppose plants were genetically modified...Ch. 36 - How did the evolution of xylem and phloem...Ch. 36 - Is xylem sap usually pulled or pushed up the...Ch. 36 - Prob. 36.3CRCh. 36 - Prob. 36.4CRCh. 36 - Prob. 36.5CRCh. 36 - By what mechanisms is symplastic communication...Ch. 36 - Prob. 1TYUCh. 36 - Prob. 2TYUCh. 36 - Prob. 3TYUCh. 36 - Photosynthesis ceases when leaves wilt, mainly...Ch. 36 - Prob. 5TYUCh. 36 - A plant cell with a of -0.65 MPa maintains a...Ch. 36 - Compared with a cell with few aquaporin proteins...Ch. 36 - Prob. 8TYUCh. 36 - EVOLUTION CONNECTION Large brown algae called...Ch. 36 - SCIENTIFIC INQUIRY INTERPRET THE DATA A Minnesota...Ch. 36 - SCIENTIFIC INQUIRY Cotton plants wilt within a few...Ch. 36 - WRITE ABOUT A THEME: ORGANIZATION Natural...Ch. 36 - Prob. 13TYU
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- Anthocyanins are another type of plant pigment that are purple or red. Say you run a chromatography experiment using the same setup as you did in this lab, and you find that anthocyanins do not move from the line of origin. Assuming the solvent traveled the same distance as in your experiment (D in Table 1 above), what is the Rf value of anthocyanin?arrow_forwardIn a photosynthetic investigation, a student measured the following pH of the stroma and the inner thylakoid compartments of spinach leaf cells at the conclusion of the experiment. Source of Fluid pH (mean) Standard Error of Mean (SEM) Stroma 8.2 0.75 Inner compartment of thylakoid 5.6 0.35 Explain the reason for the differences in pH between the stroma and the thylakoid lumen.arrow_forwardplant cells with an aqueous potential of -600kPa were placed in different aqueous potentials. Determine in which of the following cases after 10 minutes the cells were blocked, started plasmolysis or completely subjected to the latter. Solution A is -400kPa, solution B is - 600kPa, solution C is -900kPa and solution D is distilled waterarrow_forward
- If I slid a plant cells with a water potential averaging -.5 MPa Are placed into solution with a water potential of -.3 MPa, which of the following would be the most likely outcome?arrow_forwardA 10,000L bioreactor may have 100 trillion cells. Let’s assume that this cell solution has the same density as water a. How many cells per kilogram is this? b. How many cells does the typical human body have? c. What cell density is this (per kg)?arrow_forwardusing the cell potential table found in the Reference Material, why do you get holes in your aluminum foil if you use it to cover lasagna in a steel pan? Hint: Steel is made up of mostly iron and lasagna serves as an acidic medium.arrow_forward
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- Design an experiment to study the effect of solvent on the integrity of the membrahe of carrot-root cells. Remember that carrot contains carotenoids which include the yellow-orange colored pigments which can be collectively measured by a spectrophotometer at 450 nm. Also remember that these group are fat soluble. State your hypothesis, a brief summary of the experimental procedure and conditions, the expected outcome(s) and conclusion(s)arrow_forwardAssume that a beaker is divided in half by a membrane which is permeable to water only. A 0.45 M glucose solution is on one side of the membrane, and a 0.40 M NaCl solution is on the other side of the membrane. (a) Diagram the above set-up, (b) indicate with an arrow the direction of water movement across the membrane and (c) explain, specifically, why the movement occurs in that directionarrow_forwardA daisy stem is placed in a solution with a water potential of -0.2 bars. After the daisy stem cells have had a chance to reach equilibrium with the surrounding solution, the pressure potential inside the daisy cells is 0.5 bars. At equilibrium, calculate the solute potential of the daisy cells.arrow_forward
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