Assignment_3_10pts (1) - involved in uptake of xenobiotics...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Name : ETOX 102A Homework #2 (10 pts total) Turn in Completed Assignment (1 pt) DUE IN CLASS: Monday, February 7 th , 2011 Please answer the following questions in the space provided. 1). Colloids can be defined as a mixture of substances which can exist as particles or as dissolved matter in solution. Two types of commonly found colloids in the environment are hydrophobic and hydrophilic colloids. However, only hydrophobic colloids are capable of “salting out” and undergoing flocculation. Explain the differences between these two similar, but distinct forms of aggregations. (3 pts) 2). What is the difference between adsorption and absorption? Describe characteristics of cation and anion exchange processes in surface sorption. How would cation change be
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: involved in uptake of xenobiotics by plants? (3 pts) 3). A farmer used Pesticide X for the first time this summer on his farm because it was on sale. The farmer is concerned about his choice of switching pesticide brands because he does not understand the dissipation values written on the pesticide warning label. Knowing you are an up-and-coming toxicologist, he calls you and asks, “What will happen after spraying my pesticide?” The values you read are: H=1.2x10-6 and t 1/2 = 7 – 14 days. Given these values, what conclusions can you draw about how the pesticide will dissipate in the environment? (3 pts)...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern