Problem 12
A Minnesota gardener notes that the plants immediately bordering a walkway are stunted compared with those farther away. Suspecting that the soil near the walkway may be contaminated from salt added to the walkway in winter, the gardener tests the soil. The composition of the soil near the walkway is identical to that farther away except that it contains an additional 50 mM NaCl. Assuming that the NaCl is completely ionized, calculate how much it will lower the solute potential of the soil at 20C using the solute potential equation: S = iCRT where i = the ionization constant (2 for NaCl); C = the molar concentration (in moles/liter); R = the pressure constant (R = 0.00831 liter MPa/mole K); and T = temperature in Kelvin (273 + C). How would this change in the solute potential of the soil affect the water potential of the soil? In what way would the change in the water potential of the soil affect the movement of water in or out of the roots?
Step-by-Step Solution:
Step 1 of 3
Biology 8/24 ● Homology: similar structures from a common ancestor with a similar function but best suited with different functions for the individual animal; diverged over time ● analogous : similar function but not homologous ● Insects wings are analogous to birds and bats ○ Adapted through similar environments [convergence] ○ [Fins in sharks and mammals] ● Divergent, convergent, parallel evolution ● Vestigial structures: from an ancestor that are not needed but still remain in or on the body ○ Appendix, erector pili and hair, wisdom teeth, tailbone ● Time is a requirement of evolution ● Convergent
This full solution covers the following key subjects: . This expansive textbook survival guide covers 43 chapters, and 464 solutions. The full step-by-step solution to problem: 12 from chapter: 29 was answered by , our top Science solution expert on 03/09/18, 07:32PM. Campbell Biology in Focus - Standalone book was written by and is associated to the ISBN: 9780321813800. Since the solution to 12 from 29 chapter was answered, more than 577 students have viewed the full step-by-step answer. The answer to “A Minnesota gardener notes that the plants immediately bordering a walkway are stunted compared with those farther away. Suspecting that the soil near the walkway may be contaminated from salt added to the walkway in winter, the gardener tests the soil. The composition of the soil near the walkway is identical to that farther away except that it contains an additional 50 mM NaCl. Assuming that the NaCl is completely ionized, calculate how much it will lower the solute potential of the soil at 20C using the solute potential equation: S = iCRT where i = the ionization constant (2 for NaCl); C = the molar concentration (in moles/liter); R = the pressure constant (R = 0.00831 liter MPa/mole K); and T = temperature in Kelvin (273 + C). How would this change in the solute potential of the soil affect the water potential of the soil? In what way would the change in the water potential of the soil affect the movement of water in or out of the roots?” is broken down into a number of easy to follow steps, and 171 words. This textbook survival guide was created for the textbook: Campbell Biology in Focus - Standalone book , edition: 1.
